X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=test%2Fjalview%2Futil%2FColorUtilsTest.java;h=69675f75451f76456f33aa21cd891fb334350e74;hb=37de9310bec3501cbc6381e0c3dcb282fcaad812;hp=ad6e6d0d395270f7dd83794077bfc333f247b1eb;hpb=c93b9ad2ebfab4cad4608a8890132918589576be;p=jalview.git

diff --git a/test/jalview/util/ColorUtilsTest.java b/test/jalview/util/ColorUtilsTest.java
index ad6e6d0..69675f7 100644
--- a/test/jalview/util/ColorUtilsTest.java
+++ b/test/jalview/util/ColorUtilsTest.java
@@ -1,3 +1,23 @@
+/*
+ * 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.util;
 
 import static org.testng.AssertJUnit.assertEquals;
@@ -16,7 +36,7 @@ public class ColorUtilsTest
 
   Color darkColour = new Color(11, 30, 50); // dark blue
 
-  @Test
+  @Test(groups = { "Functional" })
   public void testDarkerThan()
   {
     assertEquals("Wrong darker shade", new Color(32, 69, 37),
@@ -28,7 +48,7 @@ public class ColorUtilsTest
     assertNull(ColorUtils.darkerThan(null));
   }
 
-  @Test
+  @Test(groups = { "Functional" })
   public void testBrighterThan()
   {
     assertEquals("Wrong brighter shade", new Color(255, 255, 255), // white
@@ -43,7 +63,7 @@ public class ColorUtilsTest
   /**
    * @see http://www.rtapo.com/notes/named_colors.html
    */
-  @Test
+  @Test(groups = { "Functional" })
   public void testToTkCode()
   {
     assertEquals("#fffafa", ColorUtils.toTkCode(new Color(255, 250, 250))); // snow
@@ -52,4 +72,64 @@ public class ColorUtilsTest
     assertEquals("#800080", ColorUtils.toTkCode(new Color(128, 0, 128))); // purple
     assertEquals("#00ff00", ColorUtils.toTkCode(new Color(0, 255, 0))); // lime
   }
+
+  @Test(groups = { "Functional" })
+  public void testGetGraduatedColour()
+  {
+    Color minColour = new Color(100, 100, 100);
+    Color maxColour = new Color(180, 200, 220);
+
+    /*
+     * value half-way between min and max
+     */
+    Color col = ColorUtils.getGraduatedColour(20f, 10f, minColour, 30f,
+            maxColour);
+    assertEquals(140, col.getRed());
+    assertEquals(150, col.getGreen());
+    assertEquals(160, col.getBlue());
+
+    /*
+     * value two-thirds of the way between min and max
+     */
+    col = ColorUtils
+            .getGraduatedColour(30f, 10f, minColour, 40f, maxColour);
+    assertEquals(153, col.getRed());
+    // Color constructor rounds float value to nearest int
+    assertEquals(167, col.getGreen());
+    assertEquals(180, col.getBlue());
+
+    /*
+     * value = min
+     */
+    col = ColorUtils
+            .getGraduatedColour(10f, 10f, minColour, 30f, maxColour);
+    assertEquals(minColour, col);
+
+    /*
+     * value = max
+     */
+    col = ColorUtils
+            .getGraduatedColour(30f, 10f, minColour, 30f, maxColour);
+    assertEquals(maxColour, col);
+
+    /*
+     * value < min
+     */
+    col = ColorUtils.getGraduatedColour(0f, 10f, minColour, 30f, maxColour);
+    assertEquals(minColour, col);
+
+    /*
+     * value > max
+     */
+    col = ColorUtils
+            .getGraduatedColour(40f, 10f, minColour, 30f, maxColour);
+    assertEquals(maxColour, col);
+
+    /*
+     * min = max
+     */
+    col = ColorUtils
+            .getGraduatedColour(40f, 10f, minColour, 10f, maxColour);
+    assertEquals(minColour, col);
+  }
 }