JAL-1270 tests added

diff --git a/test/jalview/util/QuickSortTest.java b/test/jalview/util/QuickSortTest.java
new file mode 100644 (file)
index 0000000..6631871
--- /dev/null
+++ b/test/jalview/util/QuickSortTest.java
@@ -0,0 +1,79 @@
+package jalview.util;
+
+import static org.junit.Assert.assertTrue;
+
+import java.util.Arrays;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class QuickSortTest
+{
+  private static final String c1 = "Blue";
+
+  private static final String c2 = "Yellow";
+
+  private static final String c3 = "Orange";
+
+  private static final String c4 = "Green";
+
+  private Object[] things;
+
+  private final Object[] sortedThings = new Object[]
+  { c4, c2, c1, c3 };
+
+  @Before
+  public void setUp()
+  {
+    things = new Object[]
+    { c1, c2, c3, c4 };
+  }
+
+  @Test
+  public void testSort_byIntValues()
+  {
+    int[] values = new int[]
+    { 3, 2, 4, 1 };
+    QuickSort.sort(values, things);
+    assertTrue(Arrays.equals(new int[]
+    { 1, 2, 3, 4 }, values));
+    assertTrue(Arrays.equals(sortedThings, things));
+  }
+
+  @Test
+  public void testSort_byFloatValues()
+  {
+    float[] values = new float[]
+    { 3f, 2f, 4f, 1f };
+    QuickSort.sort(values, things);
+    assertTrue(Arrays.equals(new float[]
+    { 1f, 2f, 3f, 4f }, values));
+    assertTrue(Arrays.equals(sortedThings, things));
+  }
+
+  @Test
+  public void testSort_byDoubleValues()
+  {
+    double[] values = new double[]
+    { 3d, 2d, 4d, 1d };
+    QuickSort.sort(values, things);
+    assertTrue(Arrays.equals(new double[]
+    { 1d, 2d, 3d, 4d }, values));
+    assertTrue(Arrays.equals(sortedThings, things));
+  }
+
+  /**
+   * Sort by String is descending order, case-sensitive
+   */
+  @Test
+  public void testSort_byStringValues()
+  {
+    String[] values = new String[]
+    { "JOHN", "henry", "lucy", "ALISON" };
+    QuickSort.sort(values, things);
+    assertTrue(Arrays.equals(new String[]
+    { "lucy", "henry", "JOHN", "ALISON" }, values));
+    assertTrue(Arrays.equals(new Object[]
+    { c3, c2, c1, c4 }, things));
+  }
+}