Reorganized abstract tests

test/test-class-abstract.js

@@ -68,59 +68,97 @@ var ConcreteFoo = AbstractFoo.extend(
 });
 
 
-assert.ok(
-    ( Foo.isAbstract instanceof Function ),
+/**
+ * All classes should have a method to determine if they are abstract.
+ */
+( function testAllClassesHaveAMethodToDetmineIfAbstract()
+{
+    assert.ok(
+        ( Class( {} ).isAbstract instanceof Function ),
         "All classes should have an isAbstract() method"
-);
+    );
+} )();
 
-assert.equal(
-    Foo.isAbstract(),
+
+( function testClassesAreNotConsideredToBeAbstractIfTheyHaveNoAbstractMethods()
+{
+    assert.equal(
+        Class( {} ).isAbstract(),
         false,
         "Classes are not abstract if they contain no abstract methods"
-);
+    );
+} )();
 
-assert.equal(
+
+( function testClassesShouldBeConsideredAbstractIfTheyContainAbstractMethods()
+{
+    assert.equal(
         AbstractFoo.isAbstract(),
         true,
         "Classes should be considered abstract if they contain any abstract methods"
-);
+    );
+} )();
 
-assert.equal(
+
+( function testSubtypesAreAbstractIfNoConcreteMethodIsProvided()
+{
+    assert.equal(
         SubAbstractFoo.isAbstract(),
         true,
         "Subtypes of abstract types are abstract if they don't provide a " +
             "concrete implementation for all abstract methods"
-);
+    );
+} )();
 
-assert.equal(
+
+( function testSubtypesAreNotConisderedAbstractIfConcreteImplIsProvided()
+{
+    assert.equal(
         ConcreteFoo.isAbstract(),
         false,
         "Subtypes of abstract types are not abstract if they provide concrete " +
             "implementations of all abstract methods"
-);
+    );
+} )();
 
-assert.throws( function()
+
+( function testAbstractClassesCannotBeInstantiated()
 {
-    new AbstractFoo();
-    new SubAbstractFoo();
-}, Error, "Abstract classes cannot be instantiated" );
+    assert.throws( function()
+    {
+        // both should fail
+        AbstractFoo();
+        SubAbstractFoo();
+    }, Error, "Abstract classes cannot be instantiated" );
+} )();
 
-assert.ok(
-    new ConcreteFoo(),
+
+( function testConcreteSubclassesCanBeInstantiated()
+{
+    assert.ok(
+        ConcreteFoo(),
         "Concrete subclasses can be instantiated"
-);
+    );
+} )();
 
-ctor_called = false;
-new ConcreteFoo();
-assert.equal(
+
+( function testCanCallConstructorsOfAbstractSupertypes()
+{
+    ctor_called = false;
+    ConcreteFoo();
+
+    assert.equal(
         ctor_called,
         true,
         "Can call constructors of abstract supertypes"
-);
+    );
+} )();
 
 
-assert.throws( function()
+( function testConcreteMethodsMustImplementTheProperNumberOfArguments()
 {
+    assert.throws( function()
+    {
         AbstractFoo.extend(
         {
             // incorrect number of arguments
@@ -128,9 +166,13 @@ assert.throws( function()
             {
             },
         });
-}, Error, "Concrete methods must implement the proper number of argments" );
+    }, Error, "Concrete methods must implement the proper number of argments" );
+} )();
 
-assert.throws(
+
+( function testAbstractMethodsOfSubtypesMustImplementProperNumberOfArguments()
+{
+    assert.throws(
         function()
         {
             AbstractFoo.extend(
@@ -140,10 +182,15 @@ assert.throws(
             });
         },
         TypeError,
-    "Abstract methods of subtypes must implement the proper number of argments"
-);
+        "Abstract methods of subtypes must implement the proper number of " +
+            "argments"
+    );
+} )();
 
-assert.doesNotThrow(
+
+( function testAbstractMembersMayImplementMoreArgumentsThanSupertype()
+{
+    assert.doesNotThrow(
         function()
         {
             AbstractFoo.extend(
@@ -153,12 +200,16 @@ assert.doesNotThrow(
             });
         },
         Error,
-    "Abstract methods of subtypes may implement additional arguments, so long" +
-        "as they implement at least the required number of arguments as defined by " +
-        "it supertype"
-);
+        "Abstract methods of subtypes may implement additional arguments, " +
+            "so long as they implement at least the required number of " +
+            "arguments as defined by it supertype"
+    );
+} )();
 
-assert.doesNotThrow(
+
+( function testConcreteMethodsHaveNoArgumentRequirementsIfNoDefinitionGiven()
+{
+    assert.doesNotThrow(
         function()
         {
             AbstractFoo.extend(
@@ -169,19 +220,23 @@ assert.doesNotThrow(
             });
         },
         Error,
-    "Concrete methods needn't implement the proper number of arguments if " +
-        "no definition was provided"
-);
+        "Concrete methods needn't implement the proper number of arguments " +
+            "if no definition was provided"
+    );
+} )();
 
 
-assert.throws( function()
+( function testAbstractMethodsMustBeDeclaredAsArrays()
 {
+    assert.throws( function()
+    {
         Class.extend(
         {
             // not an array (invalid)
             'abstract foo': 'scalar',
         } );
-}, TypeError, "Abstract methods must be declared as arrays" );
+    }, TypeError, "Abstract methods must be declared as arrays" );
+} )();
 
 
 /**