JAL-2214 test for strict Watson-Crick pairing

[jalview.git] / test / jalview / analysis / RnaTest.java

diff --git a/test/jalview/analysis/RnaTest.java b/test/jalview/analysis/RnaTest.java
index f33525f..f96d2c9 100644 (file)
--- a/test/jalview/analysis/RnaTest.java
+++ b/test/jalview/analysis/RnaTest.java
@@ -188,6 +188,33 @@ public class RnaTest
     }
   }
 
+  @Test(groups = { "Functional" })
+  public void testIsCanonicalPair()
+  {
+    String bases = "acgtuACGTU";
+    for (int i = 0; i < bases.length(); i++)
+    {
+      for (int j = 0; j < bases.length(); j++)
+      {
+        char first = bases.charAt(i);
+        char second = bases.charAt(j);
+        boolean result = Rna.isCanonicalPair(first, second);
+        String pair = new String(new char[] { first, second })
+                .toUpperCase();
+        if (pair.equals("AT") || pair.equals("TA") || pair.equals("AU")
+                || pair.equals("UA") || pair.equals("GC")
+                || pair.equals("CG"))
+        {
+          assertTrue(pair + " should be valid", result);
+        }
+        else
+        {
+          assertFalse(pair + " should be invalid", result);
+        }
+      }
+    }
+  }
+
   /**
    * Tests for isOpeningParenthesis with char or String argument
    */