Check now working for all kinds of triangles.

Including Tests for all Checks.

test/TriangleCheckerTest.java

@@ -1,8 +1,11 @@
 import org.junit.Test;
+
+import java.util.Arrays;
+
 import static org.junit.Assert.*;
 
 public class TriangleCheckerTest {
-    
+
     @Test
     public void testValidTriangle() {
 
@@ -18,5 +21,47 @@ public class TriangleCheckerTest {
         assertEquals(TriangleChecker.TriangleType.NORMAL, type);
 
     }
+    @Test
+    public void testEquilateralTriangle() {
 
+        // Arrange
+        float a = 2;
+        float b = 2;
+        float c = 2;
+
+        // Act
+        TriangleChecker.TriangleType type = TriangleChecker.checkTriangle(a, b, c);
+
+        // Assert
+        assertEquals(TriangleChecker.TriangleType.EQUILATERAL, type);
+    }
+    @Test
+    public void testIsocelesTriangle() {
+
+        // Arrange
+        float a = 2;
+        float b = 2;
+        float c = 3;
+
+        // Act
+        TriangleChecker.TriangleType type = TriangleChecker.checkTriangle(a, b, c);
+
+        // Assert
+        assertEquals(TriangleChecker.TriangleType.ISOSCELES, type);
+    }
+    @Test
+    public void testNoTriangle() {
+
+        // Arrange
+        float a = 2;
+        float b = 2;
+        float c = 4;
+
+        // Act
+        TriangleChecker.TriangleType type = TriangleChecker.checkTriangle(a, b, c);
+
+        // Assert
+        assertEquals(TriangleChecker.TriangleType.NONE, type);
+    }
 }
+