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Write unit tests for groupBars

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Philipp Jahoda 2016-06-06 17:47:40 +02:00
parent 68947023d4
commit 67911b1317
1 changed files with 72 additions and 0 deletions
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MPChartLib/src/test/java/com/github/mikephil/charting/test/BarDataTest.java Normal file
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package com.github.mikephil.charting.test;
import com.github.mikephil.charting.data.BarData;
import com.github.mikephil.charting.data.BarDataSet;
import com.github.mikephil.charting.data.BarEntry;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
import static junit.framework.Assert.assertEquals;
/**
* Created by philipp on 06/06/16.
*/
public class BarDataTest {
@Test
public void testGroupBars() {
float groupSpace = 5f;
float barSpace = 1f;
List<BarEntry> values1 = new ArrayList<>();
List<BarEntry> values2 = new ArrayList<>();
for(int i = 0; i < 5; i++) {
values1.add(new BarEntry(i, 50));
values2.add(new BarEntry(i, 60));
}
BarDataSet barDataSet1 = new BarDataSet(values1, "Set1");
BarDataSet barDataSet2 = new BarDataSet(values2, "Set2");
BarData data = new BarData(barDataSet1, barDataSet2);
data.setBarWidth(10f);
float groupWidth = data.getGroupWidth(groupSpace, barSpace);
assertEquals(27f, groupWidth, 0.01f);
assertEquals(0f, values1.get(0).getX(), 0.01f);
assertEquals(1f, values1.get(1).getX(), 0.01f);
data.groupBars(1000, groupSpace, barSpace);
// 1000 + 2.5 + 0.5 + 5
assertEquals(1008f, values1.get(0).getX(), 0.01f);
assertEquals(1019f, values2.get(0).getX(), 0.01f);
assertEquals(1035f, values1.get(1).getX(), 0.01f);
assertEquals(1046f, values2.get(1).getX(), 0.01f);
data.groupBars(-1000, groupSpace, barSpace);
assertEquals(-992f, values1.get(0).getX(), 0.01f);
assertEquals(-981f, values2.get(0).getX(), 0.01f);
assertEquals(-965f, values1.get(1).getX(), 0.01f);
assertEquals(-954f, values2.get(1).getX(), 0.01f);
data.setBarWidth(20f);
groupWidth = data.getGroupWidth(groupSpace, barSpace);
assertEquals(47f, groupWidth, 0.01f);
data.setBarWidth(10f);
data.groupBars(-20, groupSpace, barSpace);
assertEquals(-12f, values1.get(0).getX(), 0.01f);
assertEquals(-1f, values2.get(0).getX(), 0.01f);
assertEquals(15f, values1.get(1).getX(), 0.01f);
assertEquals(26f, values2.get(1).getX(), 0.01f);
}
}