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ICU-20568 Add unit converter.
Add unit converter. PR: https://github.com/sffc/icu/pull/21 Commit:9bcc4b698fadd comment about ratesInfo param in UnitConverter PR: https://github.com/icu-units/icu/pull/55 Commit:cbed636227
This commit is contained in:
younies
Hugo van der Merwe
parent
4d07e3b10f
commit
cdb028edf5
7 changed files with 665 additions and 137 deletions
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@ -5,7 +5,10 @@
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#if !UCONFIG_NO_FORMATTING
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#include <cmath>
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#include "charstr.h"
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#include "double-conversion.h"
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#include "measunit_impl.h"
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#include "unicode/errorcode.h"
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#include "unicode/measunit.h"
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@ -15,6 +18,164 @@
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U_NAMESPACE_BEGIN
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namespace {
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/* Internal Structure */
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enum Constants {
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CONSTANT_FT2M, // ft2m stands for foot to meter.
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CONSTANT_PI, // PI
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CONSTANT_GRAVITY, // Gravity
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CONSTANT_G,
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CONSTANT_GAL_IMP2M3, // Gallon imp to m3
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CONSTANT_LB2KG, // Pound to Kilogram
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// Must be the last element.
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CONSTANTS_COUNT
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};
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typedef enum SigNum {
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NEGATIVE = -1,
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POSITIVE = 1,
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} SigNum;
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/* Represents a conversion factor */
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struct Factor {
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double factorNum = 1;
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double factorDen = 1;
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double offset = 0;
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bool reciprocal = false;
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int32_t constants[CONSTANTS_COUNT] = {};
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void multiplyBy(const Factor &rhs) {
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factorNum *= rhs.factorNum;
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factorDen *= rhs.factorDen;
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for (int i = 0; i < CONSTANTS_COUNT; i++) {
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constants[i] += rhs.constants[i];
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}
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// NOTE
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// We need the offset when the source and the target are simple units. e.g. the source is
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// celsius and the target is Fahrenheit. Therefore, we just keep the value using `std::max`.
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offset = std::max(rhs.offset, offset);
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}
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void divideBy(const Factor &rhs) {
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factorNum *= rhs.factorDen;
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factorDen *= rhs.factorNum;
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for (int i = 0; i < CONSTANTS_COUNT; i++) {
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constants[i] -= rhs.constants[i];
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}
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// NOTE
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// We need the offset when the source and the target are simple units. e.g. the source is
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// celsius and the target is Fahrenheit. Therefore, we just keep the value using `std::max`.
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offset = std::max(rhs.offset, offset);
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}
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// Apply the power to the factor.
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void power(int32_t power) {
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// multiply all the constant by the power.
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for (int i = 0; i < CONSTANTS_COUNT; i++) {
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constants[i] *= power;
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}
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bool shouldFlip = power < 0; // This means that after applying the absolute power, we should flip
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// the Numerator and Denominator.
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factorNum = std::pow(factorNum, std::abs(power));
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factorDen = std::pow(factorDen, std::abs(power));
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if (shouldFlip) {
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// Flip Numerator and Denominator.
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std::swap(factorNum, factorDen);
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}
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}
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// Flip the `Factor`, for example, factor= 2/3, flippedFactor = 3/2
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void flip() {
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std::swap(factorNum, factorDen);
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for (int i = 0; i < CONSTANTS_COUNT; i++) {
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constants[i] *= -1;
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}
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}
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// Apply SI prefix to the `Factor`
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void applySiPrefix(UMeasureSIPrefix siPrefix) {
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if (siPrefix == UMeasureSIPrefix::UMEASURE_SI_PREFIX_ONE) return; // No need to do anything
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double siApplied = std::pow(10.0, std::abs(siPrefix));
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if (siPrefix < 0) {
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factorDen *= siApplied;
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return;
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}
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factorNum *= siApplied;
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}
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void substituteConstants() {
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double constantsValues[CONSTANTS_COUNT];
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// TODO: Load those constant values from units data.
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constantsValues[CONSTANT_FT2M] = 0.3048;
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constantsValues[CONSTANT_PI] = 411557987.0 / 131002976.0;
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constantsValues[CONSTANT_GRAVITY] = 9.80665;
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constantsValues[CONSTANT_G] = 6.67408E-11;
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constantsValues[CONSTANT_LB2KG] = 0.45359237;
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constantsValues[CONSTANT_GAL_IMP2M3] = 0.00454609;
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for (int i = 0; i < CONSTANTS_COUNT; i++) {
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if (this->constants[i] == 0) { continue;}
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auto absPower = std::abs(this->constants[i]);
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SigNum powerSig = this->constants[i] < 0 ? SigNum::NEGATIVE : SigNum::POSITIVE;
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double absConstantValue = std::pow(constantsValues[i], absPower);
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if (powerSig == SigNum::NEGATIVE) { this->factorDen *= absConstantValue;}
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else { this->factorNum *= absConstantValue;}
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this->constants[i] = 0;
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}
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}
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};
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/* Helpers */
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using icu::double_conversion::StringToDoubleConverter;
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// TODO: Make this a shared-utility function.
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// Returns `double` from a scientific number(i.e. "1", "2.01" or "3.09E+4")
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double strToDouble(StringPiece strNum, UErrorCode &status) {
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// We are processing well-formed input, so we don't need any special options to
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// StringToDoubleConverter.
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StringToDoubleConverter converter(0, 0, 0, "", "");
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int32_t count;
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double result = converter.StringToDouble(strNum.data(), strNum.length(), &count);
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if (count != strNum.length()) { status = U_INVALID_FORMAT_ERROR; }
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return result;
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}
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// Returns `double` from a scientific number that could has a division sign (i.e. "1", "2.01", "3.09E+4"
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// or "2E+2/3")
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double strHasDivideSignToDouble(StringPiece strWithDivide, UErrorCode &status) {
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int divisionSignInd = -1;
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for (int i = 0, n = strWithDivide.length(); i < n; ++i) {
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if (strWithDivide.data()[i] == '/') {
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divisionSignInd = i;
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break;
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}
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}
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if (divisionSignInd >= 0) {
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return strToDouble(strWithDivide.substr(0, divisionSignInd), status) /
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strToDouble(strWithDivide.substr(divisionSignInd + 1), status);
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}
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return strToDouble(strWithDivide, status);
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}
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/**
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* Extracts the compound base unit of a compound unit (`source`). For example, if the source unit is
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* `square-mile-per-hour`, the compound base unit will be `square-meter-per-second`
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@ -32,7 +193,7 @@ MeasureUnit extractCompoundBaseUnit(const MeasureUnit &source, const ConversionR
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// we will use `meter`
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const auto singleUnitImpl = SingleUnitImpl::forMeasureUnit(singleUnit, status);
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const auto rateInfo = conversionRates.extractConversionInfo(singleUnitImpl.getSimpleUnitID(), status);
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if (U_FAILURE(status)) return result;
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if (U_FAILURE(status)) { return result; }
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if (rateInfo == nullptr) {
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status = U_INTERNAL_PROGRAM_ERROR;
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return result;
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@ -56,6 +217,206 @@ MeasureUnit extractCompoundBaseUnit(const MeasureUnit &source, const ConversionR
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return result;
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}
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// TODO: Load those constant from units data.
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/*
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* Adds a single factor element to the `Factor`. e.g "ft3m", "2.333" or "cup2m3". But not "cup2m3^3".
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*/
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void addSingleFactorConstant(StringPiece baseStr, int32_t power, SigNum sigNum, Factor &factor,
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UErrorCode &status) {
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if (baseStr == "ft_to_m") {
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factor.constants[CONSTANT_FT2M] += power * sigNum;
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} else if (baseStr == "ft2_to_m2") {
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factor.constants[CONSTANT_FT2M] += 2 * power * sigNum;
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} else if (baseStr == "ft3_to_m3") {
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factor.constants[CONSTANT_FT2M] += 3 * power * sigNum;
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} else if (baseStr == "in3_to_m3") {
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factor.constants[CONSTANT_FT2M] += 3 * power * sigNum;
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factor.factorDen *= 12 * 12 * 12;
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} else if (baseStr == "gal_to_m3") {
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factor.factorNum *= 231;
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factor.constants[CONSTANT_FT2M] += 3 * power * sigNum;
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factor.factorDen *= 12 * 12 * 12;
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} else if (baseStr == "gal_imp_to_m3") {
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factor.constants[CONSTANT_GAL_IMP2M3] += power * sigNum;
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} else if (baseStr == "G") {
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factor.constants[CONSTANT_G] += power * sigNum;
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} else if (baseStr == "gravity") {
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factor.constants[CONSTANT_GRAVITY] += power * sigNum;
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} else if (baseStr == "lb_to_kg") {
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factor.constants[CONSTANT_LB2KG] += power * sigNum;
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} else if (baseStr == "PI") {
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factor.constants[CONSTANT_PI] += power * sigNum;
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} else {
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if (sigNum == SigNum::NEGATIVE) {
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factor.factorDen *= std::pow(strToDouble(baseStr, status), power);
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} else {
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factor.factorNum *= std::pow(strToDouble(baseStr, status), power);
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}
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}
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}
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/*
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Adds single factor to a `Factor` object. Single factor means "23^2", "23.3333", "ft2m^3" ...etc.
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However, complex factor are not included, such as "ft2m^3*200/3"
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*/
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void addFactorElement(Factor &factor, StringPiece elementStr, SigNum sigNum, UErrorCode &status) {
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StringPiece baseStr;
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StringPiece powerStr;
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int32_t power =
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1; // In case the power is not written, then, the power is equal 1 ==> `ft2m^1` == `ft2m`
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// Search for the power part
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int32_t powerInd = -1;
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for (int32_t i = 0, n = elementStr.length(); i < n; ++i) {
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if (elementStr.data()[i] == '^') {
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powerInd = i;
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break;
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}
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}
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if (powerInd > -1) {
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// There is power
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baseStr = elementStr.substr(0, powerInd);
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powerStr = elementStr.substr(powerInd + 1);
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power = static_cast<int32_t>(strToDouble(powerStr, status));
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} else {
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baseStr = elementStr;
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}
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addSingleFactorConstant(baseStr, power, sigNum, factor, status);
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}
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/*
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* Extracts `Factor` from a complete string factor. e.g. "ft2m^3*1007/cup2m3*3"
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*/
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Factor extractFactorConversions(StringPiece stringFactor, UErrorCode &status) {
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Factor result;
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SigNum sigNum = SigNum::POSITIVE;
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auto factorData = stringFactor.data();
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for (int32_t i = 0, start = 0, n = stringFactor.length(); i < n; i++) {
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if (factorData[i] == '*' || factorData[i] == '/') {
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StringPiece factorElement = stringFactor.substr(start, i - start);
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addFactorElement(result, factorElement, sigNum, status);
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start = i + 1; // Set `start` to point to the start of the new element.
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} else if (i == n - 1) {
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// Last element
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addFactorElement(result, stringFactor.substr(start, i + 1), sigNum, status);
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}
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if (factorData[i] == '/') {
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sigNum = SigNum::NEGATIVE; // Change the sigNum because we reached the Denominator.
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}
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}
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return result;
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}
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// Load factor for a single source
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Factor loadSingleFactor(StringPiece source, const ConversionRates &ratesInfo, UErrorCode &status) {
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const auto conversionUnit = ratesInfo.extractConversionInfo(source, status);
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if (U_FAILURE(status)) return Factor();
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if (conversionUnit == nullptr) {
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status = U_INTERNAL_PROGRAM_ERROR;
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return Factor();
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}
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Factor result = extractFactorConversions(conversionUnit->factor.toStringPiece(), status);
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result.offset = strHasDivideSignToDouble(conversionUnit->offset.toStringPiece(), status);
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return result;
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}
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// Load Factor of a compound source unit.
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Factor loadCompoundFactor(const MeasureUnit &source, const ConversionRates &ratesInfo,
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UErrorCode &status) {
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Factor result;
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MeasureUnitImpl memory;
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const auto &compoundSourceUnit = MeasureUnitImpl::forMeasureUnit(source, memory, status);
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if (U_FAILURE(status)) return result;
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for (int32_t i = 0, n = compoundSourceUnit.units.length(); i < n; i++) {
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auto singleUnit = *compoundSourceUnit.units[i]; // a SingleUnitImpl
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Factor singleFactor = loadSingleFactor(singleUnit.getSimpleUnitID(), ratesInfo, status);
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if (U_FAILURE(status)) return result;
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// Apply SiPrefix before the power, because the power may be will flip the factor.
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singleFactor.applySiPrefix(singleUnit.siPrefix);
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// Apply the power of the `dimensionality`
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singleFactor.power(singleUnit.dimensionality);
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result.multiplyBy(singleFactor);
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}
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return result;
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}
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/**
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* Checks if the source unit and the target unit are simple. For example celsius or fahrenheit. But not
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* square-celsius or square-fahrenheit.
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*/
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UBool checkSimpleUnit(const MeasureUnit &unit, UErrorCode &status) {
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MeasureUnitImpl memory;
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const auto &compoundSourceUnit = MeasureUnitImpl::forMeasureUnit(unit, memory, status);
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if (U_FAILURE(status)) return false;
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if (compoundSourceUnit.complexity != UMEASURE_UNIT_SINGLE) { return false; }
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U_ASSERT(compoundSourceUnit.units.length() == 1);
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auto singleUnit = *(compoundSourceUnit.units[0]);
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if (singleUnit.dimensionality != 1 || singleUnit.siPrefix != UMEASURE_SI_PREFIX_ONE) {
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return false;
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}
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return true;
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}
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/**
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* Extract conversion rate from `source` to `target`
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*/
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void loadConversionRate(ConversionRate &conversionRate, const MeasureUnit &source,
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const MeasureUnit &target, UnitsConvertibilityState unitsState,
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const ConversionRates &ratesInfo, UErrorCode &status) {
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// Represents the conversion factor from the source to the target.
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Factor finalFactor;
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// Represents the conversion factor from the source to the base unit that specified in the conversion
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// data which is considered as the root of the source and the target.
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Factor sourceToBase = loadCompoundFactor(source, ratesInfo, status);
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Factor targetToBase = loadCompoundFactor(target, ratesInfo, status);
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// Merger Factors
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finalFactor.multiplyBy(sourceToBase);
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if (unitsState == UnitsConvertibilityState::CONVERTIBLE) {
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finalFactor.divideBy(targetToBase);
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} else if (unitsState == UnitsConvertibilityState::RECIPROCAL) {
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finalFactor.multiplyBy(targetToBase);
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} else {
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status = UErrorCode::U_ARGUMENT_TYPE_MISMATCH;
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return;
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}
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finalFactor.substituteConstants();
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conversionRate.factorNum = finalFactor.factorNum;
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conversionRate.factorDen = finalFactor.factorDen;
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// In case of simple units (such as: celsius or fahrenheit), offsets are considered.
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if (checkSimpleUnit(source, status) && checkSimpleUnit(target, status)) {
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conversionRate.sourceOffset =
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sourceToBase.offset * sourceToBase.factorDen / sourceToBase.factorNum;
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conversionRate.targetOffset =
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targetToBase.offset * targetToBase.factorDen / targetToBase.factorNum;
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}
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conversionRate.reciprocal = unitsState == UnitsConvertibilityState::RECIPROCAL;
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}
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} // namespace
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UnitsConvertibilityState U_I18N_API checkConvertibility(const MeasureUnit &source,
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@ -73,6 +434,35 @@ UnitsConvertibilityState U_I18N_API checkConvertibility(const MeasureUnit &sourc
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return UNCONVERTIBLE;
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}
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UnitConverter::UnitConverter(MeasureUnit source, MeasureUnit target, const ConversionRates &ratesInfo,
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UErrorCode &status) {
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UnitsConvertibilityState unitsState = checkConvertibility(source, target, ratesInfo, status);
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if (U_FAILURE(status)) return;
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if (unitsState == UnitsConvertibilityState::UNCONVERTIBLE) {
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status = U_INTERNAL_PROGRAM_ERROR;
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return;
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}
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conversionRate_.source = source;
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conversionRate_.target = target;
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loadConversionRate(conversionRate_, source, target, unitsState, ratesInfo, status);
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}
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double UnitConverter::convert(double inputValue) const {
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double result =
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inputValue + conversionRate_.sourceOffset; // Reset the input to the target zero index.
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// Convert the quantity to from the source scale to the target scale.
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result *= conversionRate_.factorNum / conversionRate_.factorDen;
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result -= conversionRate_.targetOffset; // Set the result to its index.
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if (result == 0)
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return 0.0; // If the result is zero, it does not matter if the conversion are reciprocal or not.
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if (conversionRate_.reciprocal) { result = 1.0 / result; }
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return result;
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}
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U_NAMESPACE_END
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#endif /* #if !UCONFIG_NO_FORMATTING */
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|
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@ -15,6 +15,19 @@
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U_NAMESPACE_BEGIN
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/**
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* Represents the conversion rate between `source` and `target`.
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*/
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struct ConversionRate {
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MeasureUnit source;
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MeasureUnit target;
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double factorNum = 1;
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double factorDen = 1;
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double sourceOffset = 0;
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double targetOffset = 0;
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bool reciprocal = false;
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};
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enum U_I18N_API UnitsConvertibilityState {
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RECIPROCAL,
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CONVERTIBLE,
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|
|
@ -26,6 +39,38 @@ UnitsConvertibilityState U_I18N_API checkConvertibility(const MeasureUnit &sourc
|
|||
const ConversionRates &conversionRates,
|
||||
UErrorCode &status);
|
||||
|
||||
/**
|
||||
* Converts from a source `MeasureUnit` to a target `MeasureUnit`.
|
||||
*/
|
||||
class U_I18N_API UnitConverter {
|
||||
public:
|
||||
/**
|
||||
* Constructor of `UnitConverter`.
|
||||
* NOTE:
|
||||
* - source and target must be under the same category
|
||||
* - e.g. meter to mile --> both of them are length units.
|
||||
*
|
||||
* @param source represents the source unit.
|
||||
* @param target represents the target unit.
|
||||
* @param ratesInfo Contains all the needed conversion rates.
|
||||
* @param status
|
||||
*/
|
||||
UnitConverter(MeasureUnit source, MeasureUnit target,
|
||||
const ConversionRates &ratesInfo, UErrorCode &status);
|
||||
|
||||
/**
|
||||
* Convert a value in the source unit to another value in the target unit.
|
||||
*
|
||||
* @param input_value the value that needs to be converted.
|
||||
* @param output_value the value that holds the result of the conversion.
|
||||
* @param status
|
||||
*/
|
||||
double convert(double inputValue) const;
|
||||
|
||||
private:
|
||||
ConversionRate conversionRate_;
|
||||
};
|
||||
|
||||
U_NAMESPACE_END
|
||||
|
||||
#endif //__UNITCONVERTER_H__
|
||||
|
|
|
|||
|
|
@ -15,6 +15,17 @@ U_NAMESPACE_BEGIN
|
|||
|
||||
namespace {
|
||||
|
||||
void trimSpaces(CharString& factor, UErrorCode& status){
|
||||
CharString trimmed;
|
||||
for (int i = 0 ; i < factor.length(); i++) {
|
||||
if (factor[i] == ' ') continue;
|
||||
|
||||
trimmed.append(factor[i], status);
|
||||
}
|
||||
|
||||
factor = std::move(trimmed);
|
||||
}
|
||||
|
||||
/**
|
||||
* A ResourceSink that collects conversion rate information.
|
||||
*
|
||||
|
|
@ -84,6 +95,7 @@ class ConversionRateDataSink : public ResourceSink {
|
|||
cr->sourceUnit.append(srcUnit, status);
|
||||
cr->baseUnit.appendInvariantChars(baseUnit, status);
|
||||
cr->factor.appendInvariantChars(factor, status);
|
||||
trimSpaces(cr->factor, status);
|
||||
if (!offset.isBogus()) cr->offset.appendInvariantChars(offset, status);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1076,7 +1076,7 @@ group: units
|
|||
group: unitsformatter
|
||||
unitsdata.o unitconverter.o
|
||||
deps
|
||||
resourcebundle units_extra
|
||||
resourcebundle units_extra double_conversion
|
||||
|
||||
group: decnumber
|
||||
decContext.o decNumber.o
|
||||
|
|
|
|||
|
|
@ -19,6 +19,7 @@
|
|||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <cmath>
|
||||
#include <math.h>
|
||||
|
||||
#include "unicode/ctest.h" // for str_timeDelta
|
||||
#include "unicode/curramt.h"
|
||||
|
|
@ -2172,6 +2173,23 @@ UBool IntlTest::assertNotEquals(const char* message,
|
|||
return TRUE;
|
||||
}
|
||||
|
||||
// http://junit.sourceforge.net/javadoc/org/junit/Assert.html#assertEquals(java.lang.String,%20double,%20double,%20double)
|
||||
UBool IntlTest::assertEqualsNear(const char *message, double expected, double actual, double precision) {
|
||||
double diff = std::abs(expected - actual);
|
||||
double diffPercent = expected != 0? diff / expected : diff; // If the expected is equals zero, we
|
||||
|
||||
if (diffPercent > precision) {
|
||||
errln((UnicodeString) "FAIL: " + message + "; got " + actual + "; expected " + expected);
|
||||
return FALSE;
|
||||
}
|
||||
#ifdef VERBOSE_ASSERTIONS
|
||||
else {
|
||||
logln((UnicodeString) "Ok: " + message + "; got " + expected);
|
||||
}
|
||||
#endif
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static char ASSERT_BUF[256];
|
||||
|
||||
static const char* extractToAssertBuf(const UnicodeString& message) {
|
||||
|
|
|
|||
|
|
@ -300,6 +300,7 @@ public:
|
|||
UBool assertEquals(const char* message, const UnicodeSet& expected, const UnicodeSet& actual);
|
||||
UBool assertEquals(const char* message,
|
||||
const std::vector<std::string>& expected, const std::vector<std::string>& actual);
|
||||
UBool assertEqualsNear(const char* message, double expected, double actual, double precision);
|
||||
#if !UCONFIG_NO_FORMATTING
|
||||
UBool assertEquals(const char* message, const Formattable& expected,
|
||||
const Formattable& actual, UBool possibleDataError=FALSE);
|
||||
|
|
|
|||
|
|
@ -29,11 +29,11 @@ class UnitsTest : public IntlTest {
|
|||
void testConversionCapability();
|
||||
void testConversions();
|
||||
void testPreferences();
|
||||
// void testBasic();
|
||||
// void testSiPrefixes();
|
||||
// void testMass();
|
||||
// void testTemperature();
|
||||
// void testArea();
|
||||
void testBasic();
|
||||
void testSiPrefixes();
|
||||
void testMass();
|
||||
void testTemperature();
|
||||
void testArea();
|
||||
};
|
||||
|
||||
extern IntlTest *createUnitsTest() { return new UnitsTest(); }
|
||||
|
|
@ -44,23 +44,14 @@ void UnitsTest::runIndexedTest(int32_t index, UBool exec, const char *&name, cha
|
|||
TESTCASE_AUTO(testConversionCapability);
|
||||
TESTCASE_AUTO(testConversions);
|
||||
TESTCASE_AUTO(testPreferences);
|
||||
// TESTCASE_AUTO(testBasic);
|
||||
// TESTCASE_AUTO(testSiPrefixes);
|
||||
// TESTCASE_AUTO(testMass);
|
||||
// TESTCASE_AUTO(testTemperature);
|
||||
// TESTCASE_AUTO(testArea);
|
||||
TESTCASE_AUTO(testBasic);
|
||||
TESTCASE_AUTO(testSiPrefixes);
|
||||
TESTCASE_AUTO(testMass);
|
||||
TESTCASE_AUTO(testTemperature);
|
||||
TESTCASE_AUTO(testArea);
|
||||
TESTCASE_AUTO_END;
|
||||
}
|
||||
|
||||
// Just for testing quick conversion ability.
|
||||
double testConvert(UnicodeString source, UnicodeString target, double input) {
|
||||
if (source == u"meter" && target == u"foot" && input == 1.0) return 3.28084;
|
||||
|
||||
if (source == u"kilometer" && target == u"foot" && input == 1.0) return 328.084;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
void UnitsTest::testConversionCapability() {
|
||||
struct TestCase {
|
||||
const StringPiece source;
|
||||
|
|
@ -90,122 +81,183 @@ void UnitsTest::testConversionCapability() {
|
|||
}
|
||||
}
|
||||
|
||||
// void UnitsTest::testBasic() {
|
||||
// IcuTestErrorCode status(*this, "Units testBasic");
|
||||
void UnitsTest::testBasic() {
|
||||
IcuTestErrorCode status(*this, "Units testBasic");
|
||||
|
||||
// // Test Cases
|
||||
// struct TestCase {
|
||||
// const char16_t *source;
|
||||
// const char16_t *target;
|
||||
// const double inputValue;
|
||||
// const double expectedValue;
|
||||
// } testCases[]{{u"meter", u"foot", 1.0, 3.28084}, {u"kilometer", u"foot", 1.0, 328.084}};
|
||||
// Test Cases
|
||||
struct TestCase {
|
||||
StringPiece source;
|
||||
StringPiece target;
|
||||
const double inputValue;
|
||||
const double expectedValue;
|
||||
} testCases[]{
|
||||
{"meter", "foot", 1.0, 3.28084}, //
|
||||
{"kilometer", "foot", 1.0, 3280.84}, //
|
||||
};
|
||||
|
||||
// for (const auto &testCase : testCases) {
|
||||
// assertEquals("test convert", testConvert(testCase.source, testCase.target,
|
||||
// testCase.inputValue),
|
||||
// testCase.expectedValue);
|
||||
// }
|
||||
// }
|
||||
for (const auto &testCase : testCases) {
|
||||
UErrorCode status = U_ZERO_ERROR;
|
||||
|
||||
// void UnitsTest::testSiPrefixes() {
|
||||
// IcuTestErrorCode status(*this, "Units testSiPrefixes");
|
||||
// // Test Cases
|
||||
// struct TestCase {
|
||||
// const char16_t *source;
|
||||
// const char16_t *target;
|
||||
// const double inputValue;
|
||||
// const double expectedValue;
|
||||
// } testCases[]{
|
||||
// {u"gram", u"kilogram", 1.0, 0.001}, //
|
||||
// {u"milligram", u"kilogram", 1.0, 0.000001}, //
|
||||
// {u"microgram", u"kilogram", 1.0, 0.000000001}, //
|
||||
// {u"megawatt", u"watt", 1, 1000000}, //
|
||||
// {u"megawatt", u"kilowatt", 1.0, 1000}, //
|
||||
// {u"gigabyte", u"byte", 1, 1000000000} //
|
||||
// };
|
||||
MeasureUnit source = MeasureUnit::forIdentifier(testCase.source, status);
|
||||
MeasureUnit target = MeasureUnit::forIdentifier(testCase.target, status);
|
||||
|
||||
// for (const auto &testCase : testCases) {
|
||||
// assertEquals("test convert", testConvert(testCase.source, testCase.target,
|
||||
// testCase.inputValue),
|
||||
// testCase.expectedValue);
|
||||
// }
|
||||
// }
|
||||
MaybeStackVector<MeasureUnit> units;
|
||||
units.emplaceBack(source);
|
||||
units.emplaceBack(target);
|
||||
|
||||
// void UnitsTest::testMass() {
|
||||
// IcuTestErrorCode status(*this, "Units testMass");
|
||||
ConversionRates conversionRates(status);
|
||||
UnitConverter converter(source, target, conversionRates, status);
|
||||
|
||||
// // Test Cases
|
||||
// struct TestCase {
|
||||
// const char16_t *source;
|
||||
// const char16_t *target;
|
||||
// const double inputValue;
|
||||
// const double expectedValue;
|
||||
// } testCases[]{
|
||||
// {u"gram", u"kilogram", 1.0, 0.001}, //
|
||||
// {u"pound", u"kilogram", 1.0, 0.453592}, //
|
||||
// {u"pound", u"kilogram", 2.0, 0.907185}, //
|
||||
// {u"ounce", u"pound", 16.0, 1.0}, //
|
||||
// {u"ounce", u"kilogram", 16.0, 0.453592}, //
|
||||
// {u"ton", u"pound", 1.0, 2000}, //
|
||||
// {u"stone", u"pound", 1.0, 14}, //
|
||||
// {u"stone", u"kilogram", 1.0, 6.35029} //
|
||||
// };
|
||||
assertEqualsNear("test conversion", testCase.expectedValue,
|
||||
converter.convert(testCase.inputValue), 0.001);
|
||||
}
|
||||
}
|
||||
|
||||
// for (const auto &testCase : testCases) {
|
||||
// assertEquals("test convert", testConvert(testCase.source, testCase.target,
|
||||
// testCase.inputValue),
|
||||
// testCase.expectedValue);
|
||||
// }
|
||||
// }
|
||||
void UnitsTest::testSiPrefixes() {
|
||||
IcuTestErrorCode status(*this, "Units testSiPrefixes");
|
||||
// Test Cases
|
||||
struct TestCase {
|
||||
StringPiece source;
|
||||
StringPiece target;
|
||||
const double inputValue;
|
||||
const double expectedValue;
|
||||
} testCases[]{
|
||||
{"gram", "kilogram", 1.0, 0.001}, //
|
||||
{"milligram", "kilogram", 1.0, 0.000001}, //
|
||||
{"microgram", "kilogram", 1.0, 0.000000001}, //
|
||||
{"megagram", "gram", 1.0, 1000000}, //
|
||||
{"megagram", "kilogram", 1.0, 1000}, //
|
||||
{"gigabyte", "byte", 1.0, 1000000000}, //
|
||||
// TODO: Fix `watt` probelms.
|
||||
// {"megawatt", "watt", 1.0, 1000000}, //
|
||||
// {"megawatt", "kilowatt", 1.0, 1000}, //
|
||||
};
|
||||
|
||||
// void UnitsTest::testTemperature() {
|
||||
// IcuTestErrorCode status(*this, "Units testTemperature");
|
||||
// // Test Cases
|
||||
// struct TestCase {
|
||||
// const char16_t *source;
|
||||
// const char16_t *target;
|
||||
// const double inputValue;
|
||||
// const double expectedValue;
|
||||
// } testCases[]{
|
||||
// {u"celsius", u"fahrenheit", 0.0, 32.0}, //
|
||||
// {u"celsius", u"fahrenheit", 10.0, 50.0}, //
|
||||
// {u"fahrenheit", u"celsius", 32.0, 0.0}, //
|
||||
// {u"fahrenheit", u"celsius", 89.6, 32}, //
|
||||
// {u"kelvin", u"fahrenheit", 0.0, -459.67}, //
|
||||
// {u"kelvin", u"fahrenheit", 300, 80.33}, //
|
||||
// {u"kelvin", u"celsius", 0.0, -273.15}, //
|
||||
// {u"kelvin", u"celsius", 300.0, 26.85} //
|
||||
// };
|
||||
for (const auto &testCase : testCases) {
|
||||
UErrorCode status = U_ZERO_ERROR;
|
||||
|
||||
// for (const auto &testCase : testCases) {
|
||||
// assertEquals("test convert", testConvert(testCase.source, testCase.target,
|
||||
// testCase.inputValue),
|
||||
// testCase.expectedValue);
|
||||
// }
|
||||
// }
|
||||
MeasureUnit source = MeasureUnit::forIdentifier(testCase.source, status);
|
||||
MeasureUnit target = MeasureUnit::forIdentifier(testCase.target, status);
|
||||
|
||||
// void UnitsTest::testArea() {
|
||||
// IcuTestErrorCode status(*this, "Units Area");
|
||||
MaybeStackVector<MeasureUnit> units;
|
||||
units.emplaceBack(source);
|
||||
units.emplaceBack(target);
|
||||
|
||||
// // Test Cases
|
||||
// struct TestCase {
|
||||
// const char16_t *source;
|
||||
// const char16_t *target;
|
||||
// const double inputValue;
|
||||
// const double expectedValue;
|
||||
// } testCases[]{
|
||||
// {u"square-meter", u"square-yard", 10.0, 11.9599}, //
|
||||
// {u"hectare", u"square-yard", 1.0, 11959.9}, //
|
||||
// {u"square-mile", u"square-foot", 0.0001, 2787.84} //
|
||||
// };
|
||||
ConversionRates conversionRates(status);
|
||||
UnitConverter converter(source, target, conversionRates, status);
|
||||
|
||||
// for (const auto &testCase : testCases) {
|
||||
// assertEquals("test convert", testConvert(testCase.source, testCase.target,
|
||||
// testCase.inputValue),
|
||||
// testCase.expectedValue);
|
||||
// }
|
||||
// }
|
||||
assertEqualsNear("test conversion", testCase.expectedValue,
|
||||
converter.convert(testCase.inputValue), 0.001);
|
||||
}
|
||||
}
|
||||
|
||||
void UnitsTest::testMass() {
|
||||
IcuTestErrorCode status(*this, "Units testMass");
|
||||
|
||||
// Test Cases
|
||||
struct TestCase {
|
||||
StringPiece source;
|
||||
StringPiece target;
|
||||
const double inputValue;
|
||||
const double expectedValue;
|
||||
} testCases[]{
|
||||
{"gram", "kilogram", 1.0, 0.001}, //
|
||||
{"pound", "kilogram", 1.0, 0.453592}, //
|
||||
{"pound", "kilogram", 2.0, 0.907185}, //
|
||||
{"ounce", "pound", 16.0, 1.0}, //
|
||||
{"ounce", "kilogram", 16.0, 0.453592}, //
|
||||
{"ton", "pound", 1.0, 2000}, //
|
||||
{"stone", "pound", 1.0, 14}, //
|
||||
{"stone", "kilogram", 1.0, 6.35029} //
|
||||
};
|
||||
|
||||
for (const auto &testCase : testCases) {
|
||||
UErrorCode status = U_ZERO_ERROR;
|
||||
|
||||
MeasureUnit source = MeasureUnit::forIdentifier(testCase.source, status);
|
||||
MeasureUnit target = MeasureUnit::forIdentifier(testCase.target, status);
|
||||
|
||||
MaybeStackVector<MeasureUnit> units;
|
||||
units.emplaceBack(source);
|
||||
units.emplaceBack(target);
|
||||
|
||||
ConversionRates conversionRates(status);
|
||||
UnitConverter converter(source, target, conversionRates, status);
|
||||
|
||||
assertEqualsNear("test conversion", testCase.expectedValue,
|
||||
converter.convert(testCase.inputValue), 0.001);
|
||||
}
|
||||
}
|
||||
|
||||
void UnitsTest::testTemperature() {
|
||||
IcuTestErrorCode status(*this, "Units testTemperature");
|
||||
// Test Cases
|
||||
struct TestCase {
|
||||
StringPiece source;
|
||||
StringPiece target;
|
||||
const double inputValue;
|
||||
const double expectedValue;
|
||||
} testCases[]{
|
||||
{"celsius", "fahrenheit", 0.0, 32.0}, //
|
||||
{"celsius", "fahrenheit", 10.0, 50.0}, //
|
||||
{"fahrenheit", "celsius", 32.0, 0.0}, //
|
||||
{"fahrenheit", "celsius", 89.6, 32}, //
|
||||
{"kelvin", "fahrenheit", 0.0, -459.67}, //
|
||||
{"kelvin", "fahrenheit", 300, 80.33}, //
|
||||
{"kelvin", "celsius", 0.0, -273.15}, //
|
||||
{"kelvin", "celsius", 300.0, 26.85} //
|
||||
};
|
||||
|
||||
for (const auto &testCase : testCases) {
|
||||
UErrorCode status = U_ZERO_ERROR;
|
||||
|
||||
MeasureUnit source = MeasureUnit::forIdentifier(testCase.source, status);
|
||||
MeasureUnit target = MeasureUnit::forIdentifier(testCase.target, status);
|
||||
|
||||
MaybeStackVector<MeasureUnit> units;
|
||||
units.emplaceBack(source);
|
||||
units.emplaceBack(target);
|
||||
|
||||
ConversionRates conversionRates(status);
|
||||
UnitConverter converter(source, target, conversionRates, status);
|
||||
|
||||
assertEqualsNear("test conversion", testCase.expectedValue,
|
||||
converter.convert(testCase.inputValue), 0.001);
|
||||
}
|
||||
}
|
||||
|
||||
void UnitsTest::testArea() {
|
||||
IcuTestErrorCode status(*this, "Units Area");
|
||||
|
||||
// Test Cases
|
||||
struct TestCase {
|
||||
StringPiece source;
|
||||
StringPiece target;
|
||||
const double inputValue;
|
||||
const double expectedValue;
|
||||
} testCases[]{
|
||||
{"square-meter", "square-yard", 10.0, 11.9599}, //
|
||||
{"hectare", "square-yard", 1.0, 11959.9}, //
|
||||
{"square-mile", "square-foot", 0.0001, 2787.84} //
|
||||
};
|
||||
|
||||
for (const auto &testCase : testCases) {
|
||||
UErrorCode status = U_ZERO_ERROR;
|
||||
|
||||
MeasureUnit source = MeasureUnit::forIdentifier(testCase.source, status);
|
||||
MeasureUnit target = MeasureUnit::forIdentifier(testCase.target, status);
|
||||
|
||||
MaybeStackVector<MeasureUnit> units;
|
||||
units.emplaceBack(source);
|
||||
units.emplaceBack(target);
|
||||
|
||||
ConversionRates conversionRates(status);
|
||||
UnitConverter converter(source, target, conversionRates, status);
|
||||
|
||||
assertEqualsNear("test conversion", testCase.expectedValue,
|
||||
converter.convert(testCase.inputValue), 0.001);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Trims whitespace (spaces only) off of the specified string.
|
||||
|
|
@ -233,10 +285,19 @@ struct UnitsTestContext {
|
|||
};
|
||||
|
||||
/**
|
||||
* WIP(hugovdm): deals with a single data-driven unit test for unit conversions.
|
||||
* This is a UParseLineFn as required by u_parseDelimitedFile.
|
||||
* Deals with a single data-driven unit test for unit conversions.
|
||||
*
|
||||
* context must point at a UnitsTestContext struct.
|
||||
* This is a UParseLineFn as required by u_parseDelimitedFile, intended for
|
||||
* parsing unitsTest.txt.
|
||||
*
|
||||
* @param context Must point at a UnitsTestContext struct.
|
||||
* @param fields A list of pointer-pairs, each pair pointing at the start and
|
||||
* end of each field. End pointers are important because these are *not*
|
||||
* null-terminated strings. (Interpreted as a null-terminated string,
|
||||
* fields[0][0] points at the whole line.)
|
||||
* @param fieldCount The number of fields (pointer pairs) passed to the fields
|
||||
* parameter.
|
||||
* @param pErrorCode Receives status.
|
||||
*/
|
||||
void unitsTestDataLineFn(void *context, char *fields[][2], int32_t fieldCount, UErrorCode *pErrorCode) {
|
||||
if (U_FAILURE(*pErrorCode)) { return; }
|
||||
|
|
@ -282,15 +343,16 @@ void unitsTestDataLineFn(void *context, char *fields[][2], int32_t fieldCount, U
|
|||
if (status.errIfFailureAndReset("msg construction")) { return; }
|
||||
unitsTest->assertNotEquals(msg.data(), UNCONVERTIBLE, convertibility);
|
||||
|
||||
// TODO(hugovdm,younies): the following code can be uncommented (and
|
||||
// fixed) once merged with a UnitConverter branch:
|
||||
// UnitConverter converter(sourceUnit, targetUnit, unitsTest->conversionRates_, status);
|
||||
// if (status.errIfFailureAndReset("constructor: UnitConverter(<%s>, <%s>, status)",
|
||||
// sourceUnit.getIdentifier(), targetUnit.getIdentifier())) {
|
||||
// return;
|
||||
// }
|
||||
// double got = converter.convert(1000);
|
||||
// unitsTest->assertEqualsNear(fields[0][0], expected, got, 0.0001);
|
||||
// Conversion:
|
||||
UnitConverter converter(sourceUnit, targetUnit, *ctx->conversionRates, status);
|
||||
if (status.errIfFailureAndReset("constructor: UnitConverter(<%s>, <%s>, status)",
|
||||
sourceUnit.getIdentifier(), targetUnit.getIdentifier())) {
|
||||
return;
|
||||
}
|
||||
double got = converter.convert(1000);
|
||||
msg.clear();
|
||||
msg.append("Converting 1000 ", status).append(x, status).append(" to ", status).append(y, status);
|
||||
unitsTest->assertEqualsNear(msg.data(), expected, got, 0.0001);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue