49 lines
1.8 KiB
C
49 lines
1.8 KiB
C
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/*
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* Copyright (c) 2013, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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#import <QuartzCore/QuartzCore.h>
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#import <UIKit/UIKit.h>
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#import <XCTest/XCTest.h>
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#ifndef FB_REFERENCE_IMAGE_DIR
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#define FB_REFERENCE_IMAGE_DIR "\"$(SOURCE_ROOT)/$(PROJECT_NAME)Tests/ReferenceImages\""
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#endif
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/**
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The base class of view snapshotting tests. If you have small UI component, it's often easier to configure it in a test
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and compare an image of the view to a reference image that write lots of complex layout-code tests.
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In order to flip the tests in your subclass to record the reference images set `recordMode` to YES before calling
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-[super setUp].
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*/
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@interface FBSnapshotTestCase : XCTestCase
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/**
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When YES, the test macros will save reference images, rather than performing an actual test.
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*/
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@property (readwrite, nonatomic, assign) BOOL recordMode;
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/**
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Performs the comparisons or records a snapshot of the view if recordMode is YES.
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@param view The view to snapshot
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@param referenceImagesDirectory The directory in which reference images are stored.
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@param identifier An optional identifier, used if there are multiple snapshot tests in a given -test method.
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@param error An error to log in an XCTAssert() macro if the method fails (missing reference image, images differ, etc).
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@returns YES if the comparison (or saving of the reference image) succeeded.
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*/
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- (BOOL)compareSnapshotOfView:(UIView *)view
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referenceImagesDirectory:(NSString *)referenceImagesDirectory
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identifier:(NSString *)identifier
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error:(NSError **)errorPtr;
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@end
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