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//
// GTMNSColor+LuminanceTest.m
//
// Copyright 2006-2009 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import <Cocoa/Cocoa.h>
#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
#import "GTMSenTestCase.h"
#import "GTMNSColor+Luminance.h"
@interface GTMNSColor_LuminanceTest : GTMTestCase
@end
@implementation GTMNSColor_LuminanceTest
- (void)testLuminance {
NSColor *midtone = [NSColor blueColor];
NSColor *darker = [midtone gtm_colorAdjustedFor:GTMColorationBaseShadow];
NSColor *lighter = [midtone gtm_colorAdjustedFor:GTMColorationBaseHighlight];
NSColor *lightest = [midtone gtm_colorAdjustedFor:GTMColorationLightHighlight];
NSColor *darkest = [midtone gtm_colorAdjustedFor:GTMColorationDarkShadow];
// The relationships of the other values are not set, so we don't test them yet
XCTAssertGreaterThanOrEqual([lightest gtm_luminance], [lighter gtm_luminance]);
XCTAssertGreaterThanOrEqual([lighter gtm_luminance], [midtone gtm_luminance]);
XCTAssertGreaterThanOrEqual([midtone gtm_luminance], [darker gtm_luminance]);
XCTAssertGreaterThanOrEqual([darker gtm_luminance], [darkest gtm_luminance]);
XCTAssertGreaterThanOrEqual([[NSColor whiteColor] gtm_luminance], (CGFloat)0.95);
XCTAssertGreaterThanOrEqual([[NSColor yellowColor] gtm_luminance], (CGFloat)0.90);
XCTAssertEqualWithAccuracy([[NSColor blueColor] gtm_luminance],
(CGFloat)0.35, 0.10);
XCTAssertEqualWithAccuracy([[NSColor redColor] gtm_luminance],
(CGFloat)0.50, 0.10);
XCTAssertLessThanOrEqual([[NSColor blackColor] gtm_luminance],
(CGFloat)0.30);
XCTAssertTrue([[NSColor blackColor] gtm_isDarkColor]);
XCTAssertTrue([[NSColor blueColor] gtm_isDarkColor]);
XCTAssertTrue([[NSColor redColor] gtm_isDarkColor]);
XCTAssertTrue(![[NSColor whiteColor] gtm_isDarkColor]);
XCTAssertTrue(![[NSColor yellowColor] gtm_isDarkColor]);
XCTAssertGreaterThanOrEqual([[[NSColor blackColor] gtm_legibleTextColor]
gtm_luminance],
[[NSColor grayColor] gtm_luminance]);
XCTAssertLessThanOrEqual([[[NSColor whiteColor] gtm_legibleTextColor]
gtm_luminance],
[[NSColor grayColor] gtm_luminance]);
}
@end
#endif // MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
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