Merge branch 'bug/JAL-3099alignmentVisibleWidth' into merge/JAL-3099

[jalview.git] / test / jalview / datamodel / AlignmentTest.java

diff --git a/test/jalview/datamodel/AlignmentTest.java b/test/jalview/datamodel/AlignmentTest.java
index 5e400c0..dd19eb6 100644 (file)
--- a/test/jalview/datamodel/AlignmentTest.java
+++ b/test/jalview/datamodel/AlignmentTest.java
@@ -1485,6 +1485,54 @@ public class AlignmentTest
     assertEquals(".PQR...", seq3.getSequenceAsString());
   }
 
+  /**
+   * Test for setHiddenColumns, to check it returns true if the hidden columns
+   * have changed, else false
+   */
+  @Test(groups = { "Functional" })
+  public void testSetHiddenColumns()
+  {
+    AlignmentI al = new Alignment(new SequenceI[] {});
+    assertFalse(al.getHiddenColumns().hasHiddenColumns());
+
+    HiddenColumns hc = new HiddenColumns();
+    assertFalse(al.setHiddenColumns(hc)); // no change
+    assertSame(hc, al.getHiddenColumns());
+
+    hc.hideColumns(2, 4);
+    assertTrue(al.getHiddenColumns().hasHiddenColumns());
+
+    /*
+     * set a different object but with the same columns hidden
+     */
+    HiddenColumns hc2 = new HiddenColumns();
+    hc2.hideColumns(2, 4);
+    assertFalse(al.setHiddenColumns(hc2)); // no change
+    assertSame(hc2, al.getHiddenColumns());
+
+    assertTrue(al.setHiddenColumns(null));
+    assertNull(al.getHiddenColumns());
+    assertTrue(al.setHiddenColumns(hc));
+    assertSame(hc, al.getHiddenColumns());
+
+    al.getHiddenColumns().hideColumns(10, 12);
+    hc2.hideColumns(10, 12);
+    assertFalse(al.setHiddenColumns(hc2)); // no change
+
+    /*
+     * hide columns 15-16 then 17-18 in hc
+     * hide columns 15-18 in hc2
+     * these are not now 'equal' objects even though they
+     * represent the same set of columns
+     */
+    assertSame(hc2, al.getHiddenColumns());
+    hc.hideColumns(15, 16);
+    hc.hideColumns(17, 18);
+    hc2.hideColumns(15, 18);
+    assertFalse(hc.equals(hc2));
+    assertTrue(al.setHiddenColumns(hc)); // 'changed'
+  }
+
   @Test(groups = { "Functional" })
   public void testGetWidth()
   {