Added stubs to starter implementation, changed assertEquals to assertTrue

exercises/triangle/src/main/java/Triangle.java

         throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
     }
 
+    public boolean isEquilateral() {
+        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
+    }
+
+    public boolean isIsosceles() {
+        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
+    }
+
+    public boolean isScalene() {
+        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
+    }
+
 }

exercises/triangle/src/test/java/TriangleTest.java

 import org.junit.Rule;
 import org.junit.rules.ExpectedException;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 public class TriangleTest {
 
     public void equilateralTrianglesHaveEqualSides() throws TriangleException {
         Triangle triangle = new Triangle(2, 2, 2);
 
-        assertEquals(true, triangle.isEquilateral());
+        assertTrue(triangle.isEquilateral());
     }
 
     @Ignore("Remove to run test")
     public void largerEquilateralTrianglesAlsoHaveEqualSides() throws TriangleException {
         Triangle triangle = new Triangle(10, 10, 10);
 
-        assertEquals(true, triangle.isEquilateral());
+        assertTrue(triangle.isEquilateral());
     }
 
     @Ignore("Remove to run test")
     public void isoscelesTrianglesHaveLastTwoSidesEqual() throws TriangleException {
         Triangle triangle = new Triangle(3, 4, 4);
 
-        assertEquals(true, triangle.isIsosceles());
+        assertTrue(triangle.isIsosceles());
     }
 
     @Ignore("Remove to run test")
     public void isoscelesTrianglesHaveFirstAndLastSidesEqual() throws TriangleException {
         Triangle triangle = new Triangle(4, 3, 4);
 
-        assertEquals(true, triangle.isIsosceles());
+        assertTrue(triangle.isIsosceles());
     }
 
     @Ignore("Remove to run test")
     public void isoscelesTrianglesHaveTwoFirstSidesEqual() throws TriangleException {
         Triangle triangle = new Triangle(4, 4, 3);
 
-        assertEquals(true, triangle.isIsosceles());
+        assertTrue(triangle.isIsosceles());
     }
 
     @Ignore("Remove to run test")
     public void isoscelesTrianglesHaveInFactExactlyTwoSidesEqual() throws TriangleException {
         Triangle triangle = new Triangle(10, 10, 2);
 
-        assertEquals(true, triangle.isIsosceles());
+        assertTrue(triangle.isIsosceles());
     }
 
     @Ignore("Remove to run test")
     public void scaleneTrianglesHaveNoEqualSides() throws TriangleException {
         Triangle triangle = new Triangle(3, 4, 5);
 
-        assertEquals(true, triangle.isScalene());
+        assertTrue(triangle.isScalene());
     }
 
     @Ignore("Remove to run test")
     public void scaleneTrianglesHaveNoEqualSidesAtLargerScaleEither() throws TriangleException {
         Triangle triangle = new Triangle(10, 11, 12);
 
-        assertEquals(true, triangle.isScalene());
+        assertTrue(triangle.isScalene());
     }
 
     @Ignore("Remove to run test")
     public void scaleneTrianglesHaveNoEqualSidesInDescendingOrderEither() throws TriangleException {
         Triangle triangle = new Triangle(5, 4, 2);
 
-        assertEquals(true, triangle.isScalene());
+        assertTrue(triangle.isScalene());
     }
 
     @Ignore("Remove to run test")
     public void verySmallTrianglesAreLegal() throws TriangleException {
         Triangle triangle = new Triangle(0.4, 0.6, 0.3);
 
-        assertEquals(true, triangle.isScalene());
+        assertTrue(triangle.isScalene());
     }
 
     @Ignore("Remove to run test")