Fix prettyArgumentComponentsForMethod: bug

#178 made methods with no arguments appear to take one argument by forcibly returning the selector name as the only argument. This is not desired behavior. Updating the test to reflect desired behavior reveals this.

This commit makes this method return an empty array when selectors consist of one component, and does some housekeeping on the tests added in #178.

Classes/Utility/FLEXRuntimeUtility.m

@@ -337,7 +337,7 @@ const unsigned int kFLEXNumberOfImplicitArgs = 2;
     
     // this is a workaround cause method_getNumberOfArguments() returns wrong number for some methods
     if (selectorComponents.count == 1) {
-        return [selectorComponents copy];
+        return @[];
     }
     
     if ([selectorComponents.lastObject isEqualToString:@""]) {

FLEXTestsMethodsList/FLEXTestsMethodsList.m

@@ -24,49 +24,43 @@
 
 @implementation FLEXTestMethodList
 
-- (void)setUp {
-    [super setUp];
-    // Put setup code here. This method is called before the invocation of each test method in the class.
-}
-
-- (void)tearDown {
-    // Put teardown code here. This method is called after the invocation of each test method in the class.
-    [super tearDown];
-}
-
 - (void)testExample {
-    // This is an example of a functional test case.
-    // Use XCTAssert and related functions to verify your tests produce the correct results.
-    [self testMethodListForClass:[NSObject class]];
-    [self testMethodListForClass:[NSArray class]];
-    [self testMethodListForClass:[UIApplication class]];
-    [self testMethodListForClass:[UIView class]];
-    [self testMethodListForClass:[NSThread class]];
-    [self testMethodListForClass:[CALayer class]];
-    [self testMethodListForClass:[NSDictionary class]];
-    [self testMethodListForClass:[NSProxy class]];
-    [self testMethodListForClass:[NSData class]];
-    [self testMethodListForClass:[FLEXManager class]];
-    [self testMethodListForClass:[FLEXWindow class]];
-    [self testMethodListForClass:[FLEXMultiColumnTableView class]];
-    [self testMethodListForClass:[NSString class]];
-    [self testMethodListForClass:[NSSet class]];
-    [self testMethodListForClass:[NSUndoManager class]];
-    [self testMethodListForClass:[NSMutableArray class]];
-    [self testMethodListForClass:[NSMutableDictionary class]];
-    [self testMethodListForClass:[NSException class]];
-    [self testMethodListForClass:[UIImage class]];
-    [self testMethodListForClass:[UIViewController class]];
-    [self testMethodListForClass:[UIScreen class]];
-    [self testMethodListForClass:[UIResponder class]];
-    [self testMethodListForClass:[NSNumber class]];
-    [self testMethodListForClass:[NSValue class]];
-    [self testMethodListForClass:[NSError class]];
-    [self testMethodListForClass:[NSNotificationCenter class]];
-    [self testMethodListForClass:[NSUserActivity class]];
-    [self testMethodListForClass:[NSUserDefaults class]];
-    [self testMethodListForClass:[NSExpression class]];
-    [self testMethodListForClass:[NSBundle class]];
+    NSArray<Class> *classesToTest = @[
+        [NSObject class],
+        [NSArray class],
+        [UIApplication class],
+        [UIView class],
+        [NSThread class],
+        [CALayer class],
+        [NSDictionary class],
+        [NSProxy class],
+        [NSData class],
+        [FLEXManager class],
+        [FLEXWindow class],
+        [FLEXMultiColumnTableView class],
+        [NSString class],
+        [NSSet class],
+        [NSUndoManager class],
+        [NSMutableArray class],
+        [NSMutableDictionary class],
+        [NSException class],
+        [UIImage class],
+        [UIViewController class],
+        [UIScreen class],
+        [UIResponder class],
+        [NSNumber class],
+        [NSValue class],
+        [NSError class],
+        [NSNotificationCenter class],
+        [NSUserActivity class],
+        [NSUserDefaults class],
+        [NSExpression class],
+        [NSBundle class]
+    ];
+    
+    for (Class cls in classesToTest) {
+        [self testMethodListForClass:cls];
+    }
 }
 
 - (void)testMethodListForClass:(Class)class {
@@ -75,27 +69,15 @@
     Method *methods = class_copyMethodList(class, &methodCount);
     for (unsigned int i = 0; i < methodCount; ++i) {
         Method method = methods[i];
-        NSString *selectorName = NSStringFromSelector(method_getName(method));
         NSArray *prevWay = [self prettyArgumentComponentsForMethod:method];
-        if (![prevWay count]) {
-            prevWay = @[ selectorName ];
-        }
-        
         NSArray *newWay = [FLEXRuntimeUtility prettyArgumentComponentsForMethod:method];
         
-        XCTAssert([newWay isEqual:prevWay]);
+        XCTAssertEqualObjects(prevWay, newWay);
     }
     
     free(methods);
 }
 
-- (void)testPerformanceExample {
-    // This is an example of a performance test case.
-    [self measureBlock:^{
-        // Put the code you want to measure the time of here.
-    }];
-}
-
 #pragma mark - Method to test with
 
 - (NSArray *)prettyArgumentComponentsForMethod:(Method)method {