Added some tests

Author: JohnMcGuinness

wcomponents-core/src/test/java/com/github/bordertech/wcomponents/WHeading_Test.java

@@ -69,4 +69,20 @@ public void testHeadingLevelAccessors() {
 			HeadingLevel.H1, HeadingLevel.H2, HeadingLevel.H3);
 	}
 
+	@Test
+	public void testHeadingTypeToHeadingLevelConversion() {
+
+		testHeadingLevelConversion(WHeading.TITLE, HeadingLevel.H1);
+		testHeadingLevelConversion(WHeading.MAJOR, HeadingLevel.H2);
+		testHeadingLevelConversion(WHeading.SECTION, HeadingLevel.H3);
+		testHeadingLevelConversion(WHeading.MINOR, HeadingLevel.H4);
+		testHeadingLevelConversion(WHeading.SUB_HEADING, HeadingLevel.H5);
+		testHeadingLevelConversion(WHeading.SUB_SUB_HEADING, HeadingLevel.H6);
+	}
+
+	private void testHeadingLevelConversion(int type, HeadingLevel headingLevel) {
+		WHeading heading = new WHeading(type, "dummy");
+		Assert.assertEquals("WHeading type conversion to HeadingLevel failed",
+			headingLevel, heading.getHeadingLevel());
+	}
 }