[spec] add test for Subscripting

test/test/spec/subscripting_spec.rb

@@ -0,0 +1,22 @@
+describe "Subscripting" do
+  it "#respond_to?(:[])" do
+    obj = TestSubscripting.new
+    obj.respond_to?(:[]).should == true
+  end
+
+  it "#respond_to?(:[]=)" do
+    obj = TestSubscripting.new
+    obj.respond_to?(:[]=).should == true
+  end
+
+  it "Objective-C literals should work" do
+    obj = TestSubscripting.new
+    o = obj[0] = 42
+    obj[0].should == 42
+    o.should == 42
+
+    o = obj['a'] = 'foo'
+    obj['a'].should == 'foo'
+    o.should == 'foo'
+  end
+end

test/test/vendor/code/subscripting.h

@@ -0,0 +1,11 @@
+#import <Foundation/Foundation.h>
+
+@interface TestSubscripting : NSObject
+
+- (id)objectAtIndexedSubscript:(NSUInteger)index;
+- (void)setObject:(id)object atIndexedSubscript:(NSUInteger)index;
+
+- (id)objectForKeyedSubscript:(id)key;
+- (void)setObject:(id)object forKeyedSubscript:(id<NSCopying>)key;
+
+@end

test/test/vendor/code/subscripting.m

@@ -0,0 +1,39 @@
+#import "subscripting.h"
+
+@interface TestSubscripting ()
+@property (strong) NSMutableArray *array;
+@property (strong) NSMutableDictionary *dictionary;
+@end
+
+@implementation TestSubscripting
+
+- (instancetype)init;
+{
+  if ((self = [super init])) {
+    _array = [NSMutableArray new];
+    _dictionary = [NSMutableDictionary new];
+  }
+  return self;
+}
+
+- (id)objectAtIndexedSubscript:(NSUInteger)index;
+{
+  return self.array[index];
+}
+
+- (void)setObject:(id)object atIndexedSubscript:(NSUInteger)index;
+{
+  self.array[index] = object;
+}
+
+- (id)objectForKeyedSubscript:(id)key;
+{
+  return self.dictionary[key];
+}
+
+- (void)setObject:(id)object forKeyedSubscript:(id<NSCopying>)key;
+{
+  self.dictionary[key] = object;
+}
+
+@end