base/mac/foundation_util_unittest.mm - gn.git - Git at Google

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 #include "base/mac/foundation_util.h"

 #include <limits.h>
 #include <stddef.h>

 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/format_macros.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "build_config.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #import "testing/gtest_mac.h"

 namespace base {
 namespace mac {

 TEST(FoundationUtilTest, CFCast) {
   // Build out the CF types to be tested as empty containers.
   ScopedCFTypeRef<CFTypeRef> test_array(
       CFArrayCreate(NULL, NULL, 0, &kCFTypeArrayCallBacks));
   ScopedCFTypeRef<CFTypeRef> test_array_mutable(
       CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks));
   ScopedCFTypeRef<CFTypeRef> test_bag(
       CFBagCreate(NULL, NULL, 0, &kCFTypeBagCallBacks));
   ScopedCFTypeRef<CFTypeRef> test_bag_mutable(
       CFBagCreateMutable(NULL, 0, &kCFTypeBagCallBacks));
   CFTypeRef test_bool = kCFBooleanTrue;
   ScopedCFTypeRef<CFTypeRef> test_data(
       CFDataCreate(NULL, NULL, 0));
   ScopedCFTypeRef<CFTypeRef> test_data_mutable(
       CFDataCreateMutable(NULL, 0));
   ScopedCFTypeRef<CFTypeRef> test_date(
       CFDateCreate(NULL, 0));
   ScopedCFTypeRef<CFTypeRef> test_dict(
       CFDictionaryCreate(NULL, NULL, NULL, 0,
                          &kCFCopyStringDictionaryKeyCallBacks,
                          &kCFTypeDictionaryValueCallBacks));
   ScopedCFTypeRef<CFTypeRef> test_dict_mutable(
       CFDictionaryCreateMutable(NULL, 0,
                                 &kCFCopyStringDictionaryKeyCallBacks,
                                 &kCFTypeDictionaryValueCallBacks));
   int int_val = 256;
   ScopedCFTypeRef<CFTypeRef> test_number(
       CFNumberCreate(NULL, kCFNumberIntType, &int_val));
   CFTypeRef test_null = kCFNull;
   ScopedCFTypeRef<CFTypeRef> test_set(
       CFSetCreate(NULL, NULL, 0, &kCFTypeSetCallBacks));
   ScopedCFTypeRef<CFTypeRef> test_set_mutable(
       CFSetCreateMutable(NULL, 0, &kCFTypeSetCallBacks));
   ScopedCFTypeRef<CFTypeRef> test_str(
       CFStringCreateWithBytes(NULL, NULL, 0, kCFStringEncodingASCII, false));
   CFTypeRef test_str_const = CFSTR("hello");
   ScopedCFTypeRef<CFTypeRef> test_str_mutable(CFStringCreateMutable(NULL, 0));

   // Make sure the allocations of CF types are good.
   EXPECT_TRUE(test_array);
   EXPECT_TRUE(test_array_mutable);
   EXPECT_TRUE(test_bag);
   EXPECT_TRUE(test_bag_mutable);
   EXPECT_TRUE(test_bool);
   EXPECT_TRUE(test_data);
   EXPECT_TRUE(test_data_mutable);
   EXPECT_TRUE(test_date);
   EXPECT_TRUE(test_dict);
   EXPECT_TRUE(test_dict_mutable);
   EXPECT_TRUE(test_number);
   EXPECT_TRUE(test_null);
   EXPECT_TRUE(test_set);
   EXPECT_TRUE(test_set_mutable);
   EXPECT_TRUE(test_str);
   EXPECT_TRUE(test_str_const);
   EXPECT_TRUE(test_str_mutable);

   // Casting the CFTypeRef objects correctly provides the same pointer.
   EXPECT_EQ(test_array, CFCast<CFArrayRef>(test_array));
   EXPECT_EQ(test_array_mutable, CFCast<CFArrayRef>(test_array_mutable));
   EXPECT_EQ(test_bag, CFCast<CFBagRef>(test_bag));
   EXPECT_EQ(test_bag_mutable, CFCast<CFBagRef>(test_bag_mutable));
   EXPECT_EQ(test_bool, CFCast<CFBooleanRef>(test_bool));
   EXPECT_EQ(test_data, CFCast<CFDataRef>(test_data));
   EXPECT_EQ(test_data_mutable, CFCast<CFDataRef>(test_data_mutable));
   EXPECT_EQ(test_date, CFCast<CFDateRef>(test_date));
   EXPECT_EQ(test_dict, CFCast<CFDictionaryRef>(test_dict));
   EXPECT_EQ(test_dict_mutable, CFCast<CFDictionaryRef>(test_dict_mutable));
   EXPECT_EQ(test_number, CFCast<CFNumberRef>(test_number));
   EXPECT_EQ(test_null, CFCast<CFNullRef>(test_null));
   EXPECT_EQ(test_set, CFCast<CFSetRef>(test_set));
   EXPECT_EQ(test_set_mutable, CFCast<CFSetRef>(test_set_mutable));
   EXPECT_EQ(test_str, CFCast<CFStringRef>(test_str));
   EXPECT_EQ(test_str_const, CFCast<CFStringRef>(test_str_const));
   EXPECT_EQ(test_str_mutable, CFCast<CFStringRef>(test_str_mutable));

   // When given an incorrect CF cast, provide NULL.
   EXPECT_FALSE(CFCast<CFStringRef>(test_array));
   EXPECT_FALSE(CFCast<CFStringRef>(test_array_mutable));
   EXPECT_FALSE(CFCast<CFStringRef>(test_bag));
   EXPECT_FALSE(CFCast<CFSetRef>(test_bag_mutable));
   EXPECT_FALSE(CFCast<CFSetRef>(test_bool));
   EXPECT_FALSE(CFCast<CFNullRef>(test_data));
   EXPECT_FALSE(CFCast<CFDictionaryRef>(test_data_mutable));
   EXPECT_FALSE(CFCast<CFDictionaryRef>(test_date));
   EXPECT_FALSE(CFCast<CFNumberRef>(test_dict));
   EXPECT_FALSE(CFCast<CFDateRef>(test_dict_mutable));
   EXPECT_FALSE(CFCast<CFDataRef>(test_number));
   EXPECT_FALSE(CFCast<CFDataRef>(test_null));
   EXPECT_FALSE(CFCast<CFBooleanRef>(test_set));
   EXPECT_FALSE(CFCast<CFBagRef>(test_set_mutable));
   EXPECT_FALSE(CFCast<CFBagRef>(test_str));
   EXPECT_FALSE(CFCast<CFArrayRef>(test_str_const));
   EXPECT_FALSE(CFCast<CFArrayRef>(test_str_mutable));

   // Giving a NULL provides a NULL.
   EXPECT_FALSE(CFCast<CFArrayRef>(NULL));
   EXPECT_FALSE(CFCast<CFBagRef>(NULL));
   EXPECT_FALSE(CFCast<CFBooleanRef>(NULL));
   EXPECT_FALSE(CFCast<CFDataRef>(NULL));
   EXPECT_FALSE(CFCast<CFDateRef>(NULL));
   EXPECT_FALSE(CFCast<CFDictionaryRef>(NULL));
   EXPECT_FALSE(CFCast<CFNullRef>(NULL));
   EXPECT_FALSE(CFCast<CFNumberRef>(NULL));
   EXPECT_FALSE(CFCast<CFSetRef>(NULL));
   EXPECT_FALSE(CFCast<CFStringRef>(NULL));

   // CFCastStrict: correct cast results in correct pointer being returned.
   EXPECT_EQ(test_array, CFCastStrict<CFArrayRef>(test_array));
   EXPECT_EQ(test_array_mutable, CFCastStrict<CFArrayRef>(test_array_mutable));
   EXPECT_EQ(test_bag, CFCastStrict<CFBagRef>(test_bag));
   EXPECT_EQ(test_bag_mutable, CFCastStrict<CFBagRef>(test_bag_mutable));
   EXPECT_EQ(test_bool, CFCastStrict<CFBooleanRef>(test_bool));
   EXPECT_EQ(test_data, CFCastStrict<CFDataRef>(test_data));
   EXPECT_EQ(test_data_mutable, CFCastStrict<CFDataRef>(test_data_mutable));
   EXPECT_EQ(test_date, CFCastStrict<CFDateRef>(test_date));
   EXPECT_EQ(test_dict, CFCastStrict<CFDictionaryRef>(test_dict));
   EXPECT_EQ(test_dict_mutable,
             CFCastStrict<CFDictionaryRef>(test_dict_mutable));
   EXPECT_EQ(test_number, CFCastStrict<CFNumberRef>(test_number));
   EXPECT_EQ(test_null, CFCastStrict<CFNullRef>(test_null));
   EXPECT_EQ(test_set, CFCastStrict<CFSetRef>(test_set));
   EXPECT_EQ(test_set_mutable, CFCastStrict<CFSetRef>(test_set_mutable));
   EXPECT_EQ(test_str, CFCastStrict<CFStringRef>(test_str));
   EXPECT_EQ(test_str_const, CFCastStrict<CFStringRef>(test_str_const));
   EXPECT_EQ(test_str_mutable, CFCastStrict<CFStringRef>(test_str_mutable));

   // CFCastStrict: Giving a NULL provides a NULL.
   EXPECT_FALSE(CFCastStrict<CFArrayRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFBagRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFBooleanRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFDataRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFDateRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFDictionaryRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFNullRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFNumberRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFSetRef>(NULL));
   EXPECT_FALSE(CFCastStrict<CFStringRef>(NULL));
 }

 TEST(FoundationUtilTest, ObjCCast) {
   ScopedNSAutoreleasePool pool;

   id test_array = @[];
   id test_array_mutable = [NSMutableArray array];
   id test_data = [NSData data];
   id test_data_mutable = [NSMutableData dataWithCapacity:10];
   id test_date = [NSDate date];
   id test_dict = @{ @"meaning" : @42 };
   id test_dict_mutable = [NSMutableDictionary dictionaryWithCapacity:10];
   id test_number = @42;
   id test_null = [NSNull null];
   id test_set = [NSSet setWithObject:@"string object"];
   id test_set_mutable = [NSMutableSet setWithCapacity:10];
   id test_str = [NSString string];
   id test_str_const = @"bonjour";
   id test_str_mutable = [NSMutableString stringWithCapacity:10];

   // Make sure the allocations of NS types are good.
   EXPECT_TRUE(test_array);
   EXPECT_TRUE(test_array_mutable);
   EXPECT_TRUE(test_data);
   EXPECT_TRUE(test_data_mutable);
   EXPECT_TRUE(test_date);
   EXPECT_TRUE(test_dict);
   EXPECT_TRUE(test_dict_mutable);
   EXPECT_TRUE(test_number);
   EXPECT_TRUE(test_null);
   EXPECT_TRUE(test_set);
   EXPECT_TRUE(test_set_mutable);
   EXPECT_TRUE(test_str);
   EXPECT_TRUE(test_str_const);
   EXPECT_TRUE(test_str_mutable);

   // Casting the id correctly provides the same pointer.
   EXPECT_EQ(test_array, ObjCCast<NSArray>(test_array));
   EXPECT_EQ(test_array_mutable, ObjCCast<NSArray>(test_array_mutable));
   EXPECT_EQ(test_data, ObjCCast<NSData>(test_data));
   EXPECT_EQ(test_data_mutable, ObjCCast<NSData>(test_data_mutable));
   EXPECT_EQ(test_date, ObjCCast<NSDate>(test_date));
   EXPECT_EQ(test_dict, ObjCCast<NSDictionary>(test_dict));
   EXPECT_EQ(test_dict_mutable, ObjCCast<NSDictionary>(test_dict_mutable));
   EXPECT_EQ(test_number, ObjCCast<NSNumber>(test_number));
   EXPECT_EQ(test_null, ObjCCast<NSNull>(test_null));
   EXPECT_EQ(test_set, ObjCCast<NSSet>(test_set));
   EXPECT_EQ(test_set_mutable, ObjCCast<NSSet>(test_set_mutable));
   EXPECT_EQ(test_str, ObjCCast<NSString>(test_str));
   EXPECT_EQ(test_str_const, ObjCCast<NSString>(test_str_const));
   EXPECT_EQ(test_str_mutable, ObjCCast<NSString>(test_str_mutable));

   // When given an incorrect ObjC cast, provide nil.
   EXPECT_FALSE(ObjCCast<NSString>(test_array));
   EXPECT_FALSE(ObjCCast<NSString>(test_array_mutable));
   EXPECT_FALSE(ObjCCast<NSString>(test_data));
   EXPECT_FALSE(ObjCCast<NSString>(test_data_mutable));
   EXPECT_FALSE(ObjCCast<NSSet>(test_date));
   EXPECT_FALSE(ObjCCast<NSSet>(test_dict));
   EXPECT_FALSE(ObjCCast<NSNumber>(test_dict_mutable));
   EXPECT_FALSE(ObjCCast<NSNull>(test_number));
   EXPECT_FALSE(ObjCCast<NSDictionary>(test_null));
   EXPECT_FALSE(ObjCCast<NSDictionary>(test_set));
   EXPECT_FALSE(ObjCCast<NSDate>(test_set_mutable));
   EXPECT_FALSE(ObjCCast<NSData>(test_str));
   EXPECT_FALSE(ObjCCast<NSData>(test_str_const));
   EXPECT_FALSE(ObjCCast<NSArray>(test_str_mutable));

   // Giving a nil provides a nil.
   EXPECT_FALSE(ObjCCast<NSArray>(nil));
   EXPECT_FALSE(ObjCCast<NSData>(nil));
   EXPECT_FALSE(ObjCCast<NSDate>(nil));
   EXPECT_FALSE(ObjCCast<NSDictionary>(nil));
   EXPECT_FALSE(ObjCCast<NSNull>(nil));
   EXPECT_FALSE(ObjCCast<NSNumber>(nil));
   EXPECT_FALSE(ObjCCast<NSSet>(nil));
   EXPECT_FALSE(ObjCCast<NSString>(nil));

   // ObjCCastStrict: correct cast results in correct pointer being returned.
   EXPECT_EQ(test_array, ObjCCastStrict<NSArray>(test_array));
   EXPECT_EQ(test_array_mutable,
             ObjCCastStrict<NSArray>(test_array_mutable));
   EXPECT_EQ(test_data, ObjCCastStrict<NSData>(test_data));
   EXPECT_EQ(test_data_mutable,
             ObjCCastStrict<NSData>(test_data_mutable));
   EXPECT_EQ(test_date, ObjCCastStrict<NSDate>(test_date));
   EXPECT_EQ(test_dict, ObjCCastStrict<NSDictionary>(test_dict));
   EXPECT_EQ(test_dict_mutable,
             ObjCCastStrict<NSDictionary>(test_dict_mutable));
   EXPECT_EQ(test_number, ObjCCastStrict<NSNumber>(test_number));
   EXPECT_EQ(test_null, ObjCCastStrict<NSNull>(test_null));
   EXPECT_EQ(test_set, ObjCCastStrict<NSSet>(test_set));
   EXPECT_EQ(test_set_mutable,
             ObjCCastStrict<NSSet>(test_set_mutable));
   EXPECT_EQ(test_str, ObjCCastStrict<NSString>(test_str));
   EXPECT_EQ(test_str_const,
             ObjCCastStrict<NSString>(test_str_const));
   EXPECT_EQ(test_str_mutable,
             ObjCCastStrict<NSString>(test_str_mutable));

   // ObjCCastStrict: Giving a nil provides a nil.
   EXPECT_FALSE(ObjCCastStrict<NSArray>(nil));
   EXPECT_FALSE(ObjCCastStrict<NSData>(nil));
   EXPECT_FALSE(ObjCCastStrict<NSDate>(nil));
   EXPECT_FALSE(ObjCCastStrict<NSDictionary>(nil));
   EXPECT_FALSE(ObjCCastStrict<NSNull>(nil));
   EXPECT_FALSE(ObjCCastStrict<NSNumber>(nil));
   EXPECT_FALSE(ObjCCastStrict<NSSet>(nil));
   EXPECT_FALSE(ObjCCastStrict<NSString>(nil));
 }

 TEST(FoundationUtilTest, GetValueFromDictionary) {
   int one = 1, two = 2, three = 3;

   ScopedCFTypeRef<CFNumberRef> cf_one(
       CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &one));
   ScopedCFTypeRef<CFNumberRef> cf_two(
       CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &two));
   ScopedCFTypeRef<CFNumberRef> cf_three(
       CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &three));

   CFStringRef keys[] = { CFSTR("one"), CFSTR("two"), CFSTR("three") };
   CFNumberRef values[] = { cf_one, cf_two, cf_three };

   static_assert(arraysize(keys) == arraysize(values),
                 "keys and values arrays must have the same size");

   ScopedCFTypeRef<CFDictionaryRef> test_dict(
       CFDictionaryCreate(kCFAllocatorDefault,
                          reinterpret_cast<const void**>(keys),
                          reinterpret_cast<const void**>(values),
                          arraysize(values),
                          &kCFCopyStringDictionaryKeyCallBacks,
                          &kCFTypeDictionaryValueCallBacks));

   // GetValueFromDictionary<>(_, _) should produce the correct
   // expected output.
   EXPECT_EQ(values[0],
             GetValueFromDictionary<CFNumberRef>(test_dict, CFSTR("one")));
   EXPECT_EQ(values[1],
             GetValueFromDictionary<CFNumberRef>(test_dict, CFSTR("two")));
   EXPECT_EQ(values[2],
             GetValueFromDictionary<CFNumberRef>(test_dict, CFSTR("three")));

   // Bad input should produce bad output.
   EXPECT_FALSE(GetValueFromDictionary<CFNumberRef>(test_dict, CFSTR("four")));
   EXPECT_FALSE(GetValueFromDictionary<CFStringRef>(test_dict, CFSTR("one")));
 }

 TEST(FoundationUtilTest, FilePathToNSString) {
   EXPECT_NSEQ(nil, FilePathToNSString(FilePath()));
   EXPECT_NSEQ(@"/a/b", FilePathToNSString(FilePath("/a/b")));
 }

 TEST(FoundationUtilTest, NSStringToFilePath) {
   EXPECT_EQ(FilePath(), NSStringToFilePath(nil));
   EXPECT_EQ(FilePath(), NSStringToFilePath(@""));
   EXPECT_EQ(FilePath("/a/b"), NSStringToFilePath(@"/a/b"));
 }

 TEST(FoundationUtilTest, CFRangeToNSRange) {
   NSRange range_out;
   EXPECT_TRUE(CFRangeToNSRange(CFRangeMake(10, 5), &range_out));
   EXPECT_EQ(10UL, range_out.location);
   EXPECT_EQ(5UL, range_out.length);
   EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(-1, 5), &range_out));
   EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(5, -1), &range_out));
   EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(-1, -1), &range_out));
   EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(LONG_MAX, LONG_MAX), &range_out));
   EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(LONG_MIN, LONG_MAX), &range_out));
 }

 TEST(StringNumberConversionsTest, FormatNSInteger) {
   // The PRI[dxu]NS macro assumes that NSInteger is a typedef to "int" on
   // 32-bit architecture and a typedef to "long" on 64-bit architecture
   // (respectively "unsigned int" and "unsigned long" for NSUInteger). Use
   // pointer incompatibility to validate this at compilation.
 #if defined(ARCH_CPU_64_BITS)
   typedef long FormatNSIntegerAsType;
   typedef unsigned long FormatNSUIntegerAsType;
 #else
   typedef int FormatNSIntegerAsType;
   typedef unsigned int FormatNSUIntegerAsType;
 #endif  // defined(ARCH_CPU_64_BITS)

   NSInteger some_nsinteger;
   FormatNSIntegerAsType* pointer_to_some_nsinteger = &some_nsinteger;
   ALLOW_UNUSED_LOCAL(pointer_to_some_nsinteger);

   NSUInteger some_nsuinteger;
   FormatNSUIntegerAsType* pointer_to_some_nsuinteger = &some_nsuinteger;
   ALLOW_UNUSED_LOCAL(pointer_to_some_nsuinteger);

   // Check that format specifier works correctly for NSInteger.
   const struct {
     NSInteger value;
     const char* expected;
     const char* expected_hex;
   } nsinteger_cases[] = {
 #if !defined(ARCH_CPU_64_BITS)
     {12345678, "12345678", "bc614e"},
     {-12345678, "-12345678", "ff439eb2"},
 #else
     {12345678, "12345678", "bc614e"},
     {-12345678, "-12345678", "ffffffffff439eb2"},
     {137451299150l, "137451299150", "2000bc614e"},
     {-137451299150l, "-137451299150", "ffffffdfff439eb2"},
 #endif  // !defined(ARCH_CPU_64_BITS)
   };

   for (size_t i = 0; i < arraysize(nsinteger_cases); ++i) {
     EXPECT_EQ(nsinteger_cases[i].expected,
               StringPrintf("%" PRIdNS, nsinteger_cases[i].value));
     EXPECT_EQ(nsinteger_cases[i].expected_hex,
               StringPrintf("%" PRIxNS, nsinteger_cases[i].value));
   }

   // Check that format specifier works correctly for NSUInteger.
   const struct {
     NSUInteger value;
     const char* expected;
     const char* expected_hex;
   } nsuinteger_cases[] = {
 #if !defined(ARCH_CPU_64_BITS)
     {12345678u, "12345678", "bc614e"},
     {4282621618u, "4282621618", "ff439eb2"},
 #else
     {12345678u, "12345678", "bc614e"},
     {4282621618u, "4282621618", "ff439eb2"},
     {137451299150ul, "137451299150", "2000bc614e"},
     {18446743936258252466ul, "18446743936258252466", "ffffffdfff439eb2"},
 #endif  // !defined(ARCH_CPU_64_BITS)
   };

   for (size_t i = 0; i < arraysize(nsuinteger_cases); ++i) {
     EXPECT_EQ(nsuinteger_cases[i].expected,
               StringPrintf("%" PRIuNS, nsuinteger_cases[i].value));
     EXPECT_EQ(nsuinteger_cases[i].expected_hex,
               StringPrintf("%" PRIxNS, nsuinteger_cases[i].value));
   }
 }

 }  // namespace mac
 }  // namespace base
	// Copyright (c) 2012 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	#include "base/mac/foundation_util.h"

	#include <limits.h>
	#include <stddef.h>

	#include "base/compiler_specific.h"
	#include "base/files/file_path.h"
	#include "base/format_macros.h"
	#include "base/mac/scoped_cftyperef.h"
	#include "base/mac/scoped_nsautorelease_pool.h"
	#include "base/macros.h"
	#include "base/strings/stringprintf.h"
	#include "build_config.h"
	#include "testing/gtest/include/gtest/gtest.h"
	#import "testing/gtest_mac.h"

	namespace base {
	namespace mac {

	TEST(FoundationUtilTest, CFCast) {
	// Build out the CF types to be tested as empty containers.
	ScopedCFTypeRef<CFTypeRef> test_array(
	CFArrayCreate(NULL, NULL, 0, &kCFTypeArrayCallBacks));
	ScopedCFTypeRef<CFTypeRef> test_array_mutable(
	CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks));
	ScopedCFTypeRef<CFTypeRef> test_bag(
	CFBagCreate(NULL, NULL, 0, &kCFTypeBagCallBacks));
	ScopedCFTypeRef<CFTypeRef> test_bag_mutable(
	CFBagCreateMutable(NULL, 0, &kCFTypeBagCallBacks));
	CFTypeRef test_bool = kCFBooleanTrue;
	ScopedCFTypeRef<CFTypeRef> test_data(
	CFDataCreate(NULL, NULL, 0));
	ScopedCFTypeRef<CFTypeRef> test_data_mutable(
	CFDataCreateMutable(NULL, 0));
	ScopedCFTypeRef<CFTypeRef> test_date(
	CFDateCreate(NULL, 0));
	ScopedCFTypeRef<CFTypeRef> test_dict(
	CFDictionaryCreate(NULL, NULL, NULL, 0,
	&kCFCopyStringDictionaryKeyCallBacks,
	&kCFTypeDictionaryValueCallBacks));
	ScopedCFTypeRef<CFTypeRef> test_dict_mutable(
	CFDictionaryCreateMutable(NULL, 0,
	&kCFCopyStringDictionaryKeyCallBacks,
	&kCFTypeDictionaryValueCallBacks));
	int int_val = 256;
	ScopedCFTypeRef<CFTypeRef> test_number(
	CFNumberCreate(NULL, kCFNumberIntType, &int_val));
	CFTypeRef test_null = kCFNull;
	ScopedCFTypeRef<CFTypeRef> test_set(
	CFSetCreate(NULL, NULL, 0, &kCFTypeSetCallBacks));
	ScopedCFTypeRef<CFTypeRef> test_set_mutable(
	CFSetCreateMutable(NULL, 0, &kCFTypeSetCallBacks));
	ScopedCFTypeRef<CFTypeRef> test_str(
	CFStringCreateWithBytes(NULL, NULL, 0, kCFStringEncodingASCII, false));
	CFTypeRef test_str_const = CFSTR("hello");
	ScopedCFTypeRef<CFTypeRef> test_str_mutable(CFStringCreateMutable(NULL, 0));

	// Make sure the allocations of CF types are good.
	EXPECT_TRUE(test_array);
	EXPECT_TRUE(test_array_mutable);
	EXPECT_TRUE(test_bag);
	EXPECT_TRUE(test_bag_mutable);
	EXPECT_TRUE(test_bool);
	EXPECT_TRUE(test_data);
	EXPECT_TRUE(test_data_mutable);
	EXPECT_TRUE(test_date);
	EXPECT_TRUE(test_dict);
	EXPECT_TRUE(test_dict_mutable);
	EXPECT_TRUE(test_number);
	EXPECT_TRUE(test_null);
	EXPECT_TRUE(test_set);
	EXPECT_TRUE(test_set_mutable);
	EXPECT_TRUE(test_str);
	EXPECT_TRUE(test_str_const);
	EXPECT_TRUE(test_str_mutable);

	// Casting the CFTypeRef objects correctly provides the same pointer.
	EXPECT_EQ(test_array, CFCast<CFArrayRef>(test_array));
	EXPECT_EQ(test_array_mutable, CFCast<CFArrayRef>(test_array_mutable));
	EXPECT_EQ(test_bag, CFCast<CFBagRef>(test_bag));
	EXPECT_EQ(test_bag_mutable, CFCast<CFBagRef>(test_bag_mutable));
	EXPECT_EQ(test_bool, CFCast<CFBooleanRef>(test_bool));
	EXPECT_EQ(test_data, CFCast<CFDataRef>(test_data));
	EXPECT_EQ(test_data_mutable, CFCast<CFDataRef>(test_data_mutable));
	EXPECT_EQ(test_date, CFCast<CFDateRef>(test_date));
	EXPECT_EQ(test_dict, CFCast<CFDictionaryRef>(test_dict));
	EXPECT_EQ(test_dict_mutable, CFCast<CFDictionaryRef>(test_dict_mutable));
	EXPECT_EQ(test_number, CFCast<CFNumberRef>(test_number));
	EXPECT_EQ(test_null, CFCast<CFNullRef>(test_null));
	EXPECT_EQ(test_set, CFCast<CFSetRef>(test_set));
	EXPECT_EQ(test_set_mutable, CFCast<CFSetRef>(test_set_mutable));
	EXPECT_EQ(test_str, CFCast<CFStringRef>(test_str));
	EXPECT_EQ(test_str_const, CFCast<CFStringRef>(test_str_const));
	EXPECT_EQ(test_str_mutable, CFCast<CFStringRef>(test_str_mutable));

	// When given an incorrect CF cast, provide NULL.
	EXPECT_FALSE(CFCast<CFStringRef>(test_array));
	EXPECT_FALSE(CFCast<CFStringRef>(test_array_mutable));
	EXPECT_FALSE(CFCast<CFStringRef>(test_bag));
	EXPECT_FALSE(CFCast<CFSetRef>(test_bag_mutable));
	EXPECT_FALSE(CFCast<CFSetRef>(test_bool));
	EXPECT_FALSE(CFCast<CFNullRef>(test_data));
	EXPECT_FALSE(CFCast<CFDictionaryRef>(test_data_mutable));
	EXPECT_FALSE(CFCast<CFDictionaryRef>(test_date));
	EXPECT_FALSE(CFCast<CFNumberRef>(test_dict));
	EXPECT_FALSE(CFCast<CFDateRef>(test_dict_mutable));
	EXPECT_FALSE(CFCast<CFDataRef>(test_number));
	EXPECT_FALSE(CFCast<CFDataRef>(test_null));
	EXPECT_FALSE(CFCast<CFBooleanRef>(test_set));
	EXPECT_FALSE(CFCast<CFBagRef>(test_set_mutable));
	EXPECT_FALSE(CFCast<CFBagRef>(test_str));
	EXPECT_FALSE(CFCast<CFArrayRef>(test_str_const));
	EXPECT_FALSE(CFCast<CFArrayRef>(test_str_mutable));

	// Giving a NULL provides a NULL.
	EXPECT_FALSE(CFCast<CFArrayRef>(NULL));
	EXPECT_FALSE(CFCast<CFBagRef>(NULL));
	EXPECT_FALSE(CFCast<CFBooleanRef>(NULL));
	EXPECT_FALSE(CFCast<CFDataRef>(NULL));
	EXPECT_FALSE(CFCast<CFDateRef>(NULL));
	EXPECT_FALSE(CFCast<CFDictionaryRef>(NULL));
	EXPECT_FALSE(CFCast<CFNullRef>(NULL));
	EXPECT_FALSE(CFCast<CFNumberRef>(NULL));
	EXPECT_FALSE(CFCast<CFSetRef>(NULL));
	EXPECT_FALSE(CFCast<CFStringRef>(NULL));

	// CFCastStrict: correct cast results in correct pointer being returned.
	EXPECT_EQ(test_array, CFCastStrict<CFArrayRef>(test_array));
	EXPECT_EQ(test_array_mutable, CFCastStrict<CFArrayRef>(test_array_mutable));
	EXPECT_EQ(test_bag, CFCastStrict<CFBagRef>(test_bag));
	EXPECT_EQ(test_bag_mutable, CFCastStrict<CFBagRef>(test_bag_mutable));
	EXPECT_EQ(test_bool, CFCastStrict<CFBooleanRef>(test_bool));
	EXPECT_EQ(test_data, CFCastStrict<CFDataRef>(test_data));
	EXPECT_EQ(test_data_mutable, CFCastStrict<CFDataRef>(test_data_mutable));
	EXPECT_EQ(test_date, CFCastStrict<CFDateRef>(test_date));
	EXPECT_EQ(test_dict, CFCastStrict<CFDictionaryRef>(test_dict));
	EXPECT_EQ(test_dict_mutable,
	CFCastStrict<CFDictionaryRef>(test_dict_mutable));
	EXPECT_EQ(test_number, CFCastStrict<CFNumberRef>(test_number));
	EXPECT_EQ(test_null, CFCastStrict<CFNullRef>(test_null));
	EXPECT_EQ(test_set, CFCastStrict<CFSetRef>(test_set));
	EXPECT_EQ(test_set_mutable, CFCastStrict<CFSetRef>(test_set_mutable));
	EXPECT_EQ(test_str, CFCastStrict<CFStringRef>(test_str));
	EXPECT_EQ(test_str_const, CFCastStrict<CFStringRef>(test_str_const));
	EXPECT_EQ(test_str_mutable, CFCastStrict<CFStringRef>(test_str_mutable));

	// CFCastStrict: Giving a NULL provides a NULL.
	EXPECT_FALSE(CFCastStrict<CFArrayRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFBagRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFBooleanRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFDataRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFDateRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFDictionaryRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFNullRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFNumberRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFSetRef>(NULL));
	EXPECT_FALSE(CFCastStrict<CFStringRef>(NULL));
	}

	TEST(FoundationUtilTest, ObjCCast) {
	ScopedNSAutoreleasePool pool;

	id test_array = @[];
	id test_array_mutable = [NSMutableArray array];
	id test_data = [NSData data];
	id test_data_mutable = [NSMutableData dataWithCapacity:10];
	id test_date = [NSDate date];
	id test_dict = @{ @"meaning" : @42 };
	id test_dict_mutable = [NSMutableDictionary dictionaryWithCapacity:10];
	id test_number = @42;
	id test_null = [NSNull null];
	id test_set = [NSSet setWithObject:@"string object"];
	id test_set_mutable = [NSMutableSet setWithCapacity:10];
	id test_str = [NSString string];
	id test_str_const = @"bonjour";
	id test_str_mutable = [NSMutableString stringWithCapacity:10];

	// Make sure the allocations of NS types are good.
	EXPECT_TRUE(test_array);
	EXPECT_TRUE(test_array_mutable);
	EXPECT_TRUE(test_data);
	EXPECT_TRUE(test_data_mutable);
	EXPECT_TRUE(test_date);
	EXPECT_TRUE(test_dict);
	EXPECT_TRUE(test_dict_mutable);
	EXPECT_TRUE(test_number);
	EXPECT_TRUE(test_null);
	EXPECT_TRUE(test_set);
	EXPECT_TRUE(test_set_mutable);
	EXPECT_TRUE(test_str);
	EXPECT_TRUE(test_str_const);
	EXPECT_TRUE(test_str_mutable);

	// Casting the id correctly provides the same pointer.
	EXPECT_EQ(test_array, ObjCCast<NSArray>(test_array));
	EXPECT_EQ(test_array_mutable, ObjCCast<NSArray>(test_array_mutable));
	EXPECT_EQ(test_data, ObjCCast<NSData>(test_data));
	EXPECT_EQ(test_data_mutable, ObjCCast<NSData>(test_data_mutable));
	EXPECT_EQ(test_date, ObjCCast<NSDate>(test_date));
	EXPECT_EQ(test_dict, ObjCCast<NSDictionary>(test_dict));
	EXPECT_EQ(test_dict_mutable, ObjCCast<NSDictionary>(test_dict_mutable));
	EXPECT_EQ(test_number, ObjCCast<NSNumber>(test_number));
	EXPECT_EQ(test_null, ObjCCast<NSNull>(test_null));
	EXPECT_EQ(test_set, ObjCCast<NSSet>(test_set));
	EXPECT_EQ(test_set_mutable, ObjCCast<NSSet>(test_set_mutable));
	EXPECT_EQ(test_str, ObjCCast<NSString>(test_str));
	EXPECT_EQ(test_str_const, ObjCCast<NSString>(test_str_const));
	EXPECT_EQ(test_str_mutable, ObjCCast<NSString>(test_str_mutable));

	// When given an incorrect ObjC cast, provide nil.
	EXPECT_FALSE(ObjCCast<NSString>(test_array));
	EXPECT_FALSE(ObjCCast<NSString>(test_array_mutable));
	EXPECT_FALSE(ObjCCast<NSString>(test_data));
	EXPECT_FALSE(ObjCCast<NSString>(test_data_mutable));
	EXPECT_FALSE(ObjCCast<NSSet>(test_date));
	EXPECT_FALSE(ObjCCast<NSSet>(test_dict));
	EXPECT_FALSE(ObjCCast<NSNumber>(test_dict_mutable));
	EXPECT_FALSE(ObjCCast<NSNull>(test_number));
	EXPECT_FALSE(ObjCCast<NSDictionary>(test_null));
	EXPECT_FALSE(ObjCCast<NSDictionary>(test_set));
	EXPECT_FALSE(ObjCCast<NSDate>(test_set_mutable));
	EXPECT_FALSE(ObjCCast<NSData>(test_str));
	EXPECT_FALSE(ObjCCast<NSData>(test_str_const));
	EXPECT_FALSE(ObjCCast<NSArray>(test_str_mutable));

	// Giving a nil provides a nil.
	EXPECT_FALSE(ObjCCast<NSArray>(nil));
	EXPECT_FALSE(ObjCCast<NSData>(nil));
	EXPECT_FALSE(ObjCCast<NSDate>(nil));
	EXPECT_FALSE(ObjCCast<NSDictionary>(nil));
	EXPECT_FALSE(ObjCCast<NSNull>(nil));
	EXPECT_FALSE(ObjCCast<NSNumber>(nil));
	EXPECT_FALSE(ObjCCast<NSSet>(nil));
	EXPECT_FALSE(ObjCCast<NSString>(nil));

	// ObjCCastStrict: correct cast results in correct pointer being returned.
	EXPECT_EQ(test_array, ObjCCastStrict<NSArray>(test_array));
	EXPECT_EQ(test_array_mutable,
	ObjCCastStrict<NSArray>(test_array_mutable));
	EXPECT_EQ(test_data, ObjCCastStrict<NSData>(test_data));
	EXPECT_EQ(test_data_mutable,
	ObjCCastStrict<NSData>(test_data_mutable));
	EXPECT_EQ(test_date, ObjCCastStrict<NSDate>(test_date));
	EXPECT_EQ(test_dict, ObjCCastStrict<NSDictionary>(test_dict));
	EXPECT_EQ(test_dict_mutable,
	ObjCCastStrict<NSDictionary>(test_dict_mutable));
	EXPECT_EQ(test_number, ObjCCastStrict<NSNumber>(test_number));
	EXPECT_EQ(test_null, ObjCCastStrict<NSNull>(test_null));
	EXPECT_EQ(test_set, ObjCCastStrict<NSSet>(test_set));
	EXPECT_EQ(test_set_mutable,
	ObjCCastStrict<NSSet>(test_set_mutable));
	EXPECT_EQ(test_str, ObjCCastStrict<NSString>(test_str));
	EXPECT_EQ(test_str_const,
	ObjCCastStrict<NSString>(test_str_const));
	EXPECT_EQ(test_str_mutable,
	ObjCCastStrict<NSString>(test_str_mutable));

	// ObjCCastStrict: Giving a nil provides a nil.
	EXPECT_FALSE(ObjCCastStrict<NSArray>(nil));
	EXPECT_FALSE(ObjCCastStrict<NSData>(nil));
	EXPECT_FALSE(ObjCCastStrict<NSDate>(nil));
	EXPECT_FALSE(ObjCCastStrict<NSDictionary>(nil));
	EXPECT_FALSE(ObjCCastStrict<NSNull>(nil));
	EXPECT_FALSE(ObjCCastStrict<NSNumber>(nil));
	EXPECT_FALSE(ObjCCastStrict<NSSet>(nil));
	EXPECT_FALSE(ObjCCastStrict<NSString>(nil));
	}

	TEST(FoundationUtilTest, GetValueFromDictionary) {
	int one = 1, two = 2, three = 3;

	ScopedCFTypeRef<CFNumberRef> cf_one(
	CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &one));
	ScopedCFTypeRef<CFNumberRef> cf_two(
	CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &two));
	ScopedCFTypeRef<CFNumberRef> cf_three(
	CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &three));

	CFStringRef keys[] = { CFSTR("one"), CFSTR("two"), CFSTR("three") };
	CFNumberRef values[] = { cf_one, cf_two, cf_three };

	static_assert(arraysize(keys) == arraysize(values),
	"keys and values arrays must have the same size");

	ScopedCFTypeRef<CFDictionaryRef> test_dict(
	CFDictionaryCreate(kCFAllocatorDefault,
	reinterpret_cast<const void**>(keys),
	reinterpret_cast<const void**>(values),
	arraysize(values),
	&kCFCopyStringDictionaryKeyCallBacks,
	&kCFTypeDictionaryValueCallBacks));

	// GetValueFromDictionary<>(_, _) should produce the correct
	// expected output.
	EXPECT_EQ(values[0],
	GetValueFromDictionary<CFNumberRef>(test_dict, CFSTR("one")));
	EXPECT_EQ(values[1],
	GetValueFromDictionary<CFNumberRef>(test_dict, CFSTR("two")));
	EXPECT_EQ(values[2],
	GetValueFromDictionary<CFNumberRef>(test_dict, CFSTR("three")));

	// Bad input should produce bad output.
	EXPECT_FALSE(GetValueFromDictionary<CFNumberRef>(test_dict, CFSTR("four")));
	EXPECT_FALSE(GetValueFromDictionary<CFStringRef>(test_dict, CFSTR("one")));
	}

	TEST(FoundationUtilTest, FilePathToNSString) {
	EXPECT_NSEQ(nil, FilePathToNSString(FilePath()));
	EXPECT_NSEQ(@"/a/b", FilePathToNSString(FilePath("/a/b")));
	}

	TEST(FoundationUtilTest, NSStringToFilePath) {
	EXPECT_EQ(FilePath(), NSStringToFilePath(nil));
	EXPECT_EQ(FilePath(), NSStringToFilePath(@""));
	EXPECT_EQ(FilePath("/a/b"), NSStringToFilePath(@"/a/b"));
	}

	TEST(FoundationUtilTest, CFRangeToNSRange) {
	NSRange range_out;
	EXPECT_TRUE(CFRangeToNSRange(CFRangeMake(10, 5), &range_out));
	EXPECT_EQ(10UL, range_out.location);
	EXPECT_EQ(5UL, range_out.length);
	EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(-1, 5), &range_out));
	EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(5, -1), &range_out));
	EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(-1, -1), &range_out));
	EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(LONG_MAX, LONG_MAX), &range_out));
	EXPECT_FALSE(CFRangeToNSRange(CFRangeMake(LONG_MIN, LONG_MAX), &range_out));
	}

	TEST(StringNumberConversionsTest, FormatNSInteger) {
	// The PRI[dxu]NS macro assumes that NSInteger is a typedef to "int" on
	// 32-bit architecture and a typedef to "long" on 64-bit architecture
	// (respectively "unsigned int" and "unsigned long" for NSUInteger). Use
	// pointer incompatibility to validate this at compilation.
	#if defined(ARCH_CPU_64_BITS)
	typedef long FormatNSIntegerAsType;
	typedef unsigned long FormatNSUIntegerAsType;
	#else
	typedef int FormatNSIntegerAsType;
	typedef unsigned int FormatNSUIntegerAsType;
	#endif // defined(ARCH_CPU_64_BITS)

	NSInteger some_nsinteger;
	FormatNSIntegerAsType* pointer_to_some_nsinteger = &some_nsinteger;
	ALLOW_UNUSED_LOCAL(pointer_to_some_nsinteger);

	NSUInteger some_nsuinteger;
	FormatNSUIntegerAsType* pointer_to_some_nsuinteger = &some_nsuinteger;
	ALLOW_UNUSED_LOCAL(pointer_to_some_nsuinteger);

	// Check that format specifier works correctly for NSInteger.
	const struct {
	NSInteger value;
	const char* expected;
	const char* expected_hex;
	} nsinteger_cases[] = {
	#if !defined(ARCH_CPU_64_BITS)
	{12345678, "12345678", "bc614e"},
	{-12345678, "-12345678", "ff439eb2"},
	#else
	{12345678, "12345678", "bc614e"},
	{-12345678, "-12345678", "ffffffffff439eb2"},
	{137451299150l, "137451299150", "2000bc614e"},
	{-137451299150l, "-137451299150", "ffffffdfff439eb2"},
	#endif // !defined(ARCH_CPU_64_BITS)
	};

	for (size_t i = 0; i < arraysize(nsinteger_cases); ++i) {
	EXPECT_EQ(nsinteger_cases[i].expected,
	StringPrintf("%" PRIdNS, nsinteger_cases[i].value));
	EXPECT_EQ(nsinteger_cases[i].expected_hex,
	StringPrintf("%" PRIxNS, nsinteger_cases[i].value));
	}

	// Check that format specifier works correctly for NSUInteger.
	const struct {
	NSUInteger value;
	const char* expected;
	const char* expected_hex;
	} nsuinteger_cases[] = {
	#if !defined(ARCH_CPU_64_BITS)
	{12345678u, "12345678", "bc614e"},
	{4282621618u, "4282621618", "ff439eb2"},
	#else
	{12345678u, "12345678", "bc614e"},
	{4282621618u, "4282621618", "ff439eb2"},
	{137451299150ul, "137451299150", "2000bc614e"},
	{18446743936258252466ul, "18446743936258252466", "ffffffdfff439eb2"},
	#endif // !defined(ARCH_CPU_64_BITS)
	};

	for (size_t i = 0; i < arraysize(nsuinteger_cases); ++i) {
	EXPECT_EQ(nsuinteger_cases[i].expected,
	StringPrintf("%" PRIuNS, nsuinteger_cases[i].value));
	EXPECT_EQ(nsuinteger_cases[i].expected_hex,
	StringPrintf("%" PRIxNS, nsuinteger_cases[i].value));
	}
	}

	} // namespace mac
	} // namespace base