JAL-2759 HiddenColumnsCursor tests

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

diff --git a/test/jalview/datamodel/HiddenColumnsCursorTest.java b/test/jalview/datamodel/HiddenColumnsCursorTest.java
new file mode 100644 (file)
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+++ b/test/jalview/datamodel/HiddenColumnsCursorTest.java
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+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+package jalview.datamodel;
+
+import static org.testng.AssertJUnit.assertEquals;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.testng.annotations.Test;
+
+public class HiddenColumnsCursorTest
+{
+  /**
+   * Test the method which finds the corresponding region given a column
+   */
+  @Test(groups = { "Functional" })
+  public void testFindRegionForColumn()
+  {
+    HiddenColumnsCursor cursor = new HiddenColumnsCursor();
+    
+    int regionIndex = cursor.findRegionForColumn(20);
+    assertEquals(-1, regionIndex);
+    
+    List<int[]> hidden = new ArrayList<>();
+    hidden.add(new int[] { 53, 76 });
+    hidden.add(new int[] { 104, 125 });
+    cursor.resetCursor(hidden);
+
+    regionIndex = cursor.findRegionForColumn(126);
+    assertEquals(2, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(125);
+    assertEquals(1, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(108);
+    assertEquals(1, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(104);
+    assertEquals(1, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(103);
+    assertEquals(1, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(77);
+    assertEquals(1, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(76);
+    assertEquals(0, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(53);
+    assertEquals(0, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(52);
+    assertEquals(0, regionIndex);
+
+    regionIndex = cursor.findRegionForColumn(0);
+    assertEquals(0, regionIndex);
+  }
+
+  /**
+   * Test the method which counts the number of hidden columns before a column
+   */
+  @Test(groups = { "Functional" })
+  public void testGetHiddenOffset()
+  {
+    HiddenColumnsCursor cursor = new HiddenColumnsCursor();
+
+    int offset = cursor.getHiddenOffset(20);
+    assertEquals(-1, offset);
+
+    List<int[]> hidden = new ArrayList<>();
+    hidden.add(new int[] { 53, 76 });
+    hidden.add(new int[] { 104, 125 });
+    cursor.resetCursor(hidden);
+
+    offset = cursor.getHiddenOffset(80);
+    assertEquals(46, offset);
+
+    offset = cursor.getHiddenOffset(79);
+    assertEquals(24, offset);
+
+    offset = cursor.getHiddenOffset(53);
+    assertEquals(24, offset);
+
+    offset = cursor.getHiddenOffset(52);
+    assertEquals(0, offset);
+
+    offset = cursor.getHiddenOffset(10);
+    assertEquals(0, offset);
+
+    offset = cursor.getHiddenOffset(0);
+    assertEquals(0, offset);
+  }
+
+}