add behavior tests for methods, ivars, and inheritance; currently, one of the ivar tests fails due to bug #498

Tests/Objective-J/Preprocessor/BehaviorTests/MethodTest.j

@@ -0,0 +1,65 @@
+@import <Foundation/Foundation.j>
+
+@implementation MathClass : CPObject
+{
+}
+
+- (CPNumber)five
+{
+    return 5;
+}
+
+- (CPNumber)sqrt:(CPNumber)operand
+{
+    return Math.sqrt(operand);
+}
+
+- (CPNumber)multiply:(CPNumber)firstOperand with:(CPNumber)secondOperand
+{
+    return firstOperand * secondOperand;
+}
+
+- (CPNumber)multiply:(CPNumber)operand, ...
+{
+    var product;
+
+    for (var i = 0, ii = arguments.length; i < ii; ++i)
+        product = product ? product * arguments[i] : arguments[i];
+
+    return product;
+}
+
+@end
+
+@implementation MethodTest : OJTestCase
+{
+    MathClass testClass;
+}
+
+- (void)setUp
+{
+    testClass = [[MathClass alloc] init];
+}
+
+- (void)testNoParameters
+{
+    [self assert:5 equals:[testClass five]];
+}
+
+- (void)testOneParameter
+{
+    [self assert:2 equals:[testClass sqrt:4]];
+}
+
+- (void)testTwoParameters
+{
+    [self assert:6 equals:[testClass multiply:2 with:3]];
+}
+
+- (void)testVarArgs
+{
+    [self assert:30 equals:[testClass multiply:2,3,5]];
+    [self assert:2310 equals:[testClass multiply:2,3,5,7,11]];
+}
+
+@end