Merge branch 'develop' into features/JAL-250_hideredundantseqs

[jalview.git] / test / jalview / schemes / HydrophobicColourSchemeTest.java

diff --git a/test/jalview/schemes/HydrophobicColourSchemeTest.java b/test/jalview/schemes/HydrophobicColourSchemeTest.java
new file mode 100644 (file)
index 0000000..f3b93a9
--- /dev/null
+++ b/test/jalview/schemes/HydrophobicColourSchemeTest.java
@@ -0,0 +1,35 @@
+package jalview.schemes;
+
+import static org.testng.Assert.assertEquals;
+
+import java.awt.Color;
+
+import org.testng.annotations.Test;
+
+public class HydrophobicColourSchemeTest
+{
+  /**
+   * Turn colours are based on the scores in ResidueProperties.hyd A = 1.8, R =
+   * -4.5, N = -3.5, D = -3.5... min = -3.9 max = 4.5
+   * <p>
+   * scores are scaled to c 0-1 between min and max and colour is (c, 0, 1-c)
+   */
+  @Test(groups = "Functional")
+  public void testFindColour()
+  {
+    ScoreColourScheme scheme = new HydrophobicColourScheme();
+
+    float min = -3.9f;
+    float max = 4.5f;
+    float a = (1.8f - min) / (max - min);
+    assertEquals(scheme.findColour('A', 0, null),
+ new Color(a, 0, 1 - a));
+
+    float d = (-3.5f - min) / (max - min);
+    assertEquals(scheme.findColour('D', 0, null),
+ new Color(d, 0, 1 - d));
+
+    assertEquals(scheme.findColour('-', 0, null), Color.WHITE);
+  }
+
+}