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GTXXCUIApplicationProxy.m
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GTXXCUIApplicationProxy.m
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//
// Copyright 2020 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 "GTXXCUIApplicationProxy.h"
#import "GTXAssertions.h"
#import "GTXSwizzler.h"
#import "GTXXCUIElementProxy.h"
/**
Reference to XCUIApplication class which will be dynamically set when needed, this allows for tests
as well as apps (which dont link to XCTest) use GTX.
*/
static Class gXCUIApplicationClass;
/**
Weak reference to the last known XCUIApplication instance.
*/
static __weak GTXXCUIApplicationProxy *gLastKnownApplicationWeakRef;
/**
Reference to the last known XCUIApplication instance.
*/
static GTXXCUIApplicationProxy *gLastKnownApplication;
/**
Category to expose the methods on XCUIApplication that this class uses.
*/
@interface GTXXCUIApplicationProxy (XCUIApplication)
/**
@return Query object that fetches all the child elements of this application.
*/
- (GTXXCUIElementQueryProxy *)childrenMatchingType:(NSInteger)unused;
@end
@implementation GTXXCUIApplicationProxy
+ (void)load {
gXCUIApplicationClass = NSClassFromString(@"XCUIApplication");
if (gXCUIApplicationClass) {
[GTXSwizzler addInstanceMethod:@selector(initGTXXCUIApplication)
fromClass:self
toClass:gXCUIApplicationClass];
[GTXSwizzler swizzleInstanceMethod:@selector(init)
withMethod:@selector(initGTXXCUIApplication)
inClass:gXCUIApplicationClass];
[GTXSwizzler addInstanceMethod:@selector(gtx_onScreenAccessibilityElements)
fromClass:self
toClass:gXCUIApplicationClass];
}
}
+ (GTXXCUIApplicationProxy *)lastKnownApplicationProxy {
return gLastKnownApplication ?: gLastKnownApplicationWeakRef;
}
+ (void)didFinishTestTeardown {
// Save gLastKnownApplication in a weak reference, this allows the application object to be freed
// if needed or if the tests are also holding on to the reference we can still access it.
gLastKnownApplicationWeakRef = gLastKnownApplication;
gLastKnownApplication = nil;
}
- (id)initGTXXCUIApplication {
NSAssert(gXCUIApplicationClass,
@"XCUIApplication class was not found, either XCTest framework is "
@"not being linked or not loaded yet.");
self = [self initGTXXCUIApplication];
gLastKnownApplication = self;
NSAssert([gLastKnownApplication isKindOfClass:gXCUIApplicationClass], @"%@ was not of class %@",
gLastKnownApplication, gXCUIApplicationClass);
// TODO: Invoking this in +load is failing since Objective-C runtime is not loading
// XCUIElement class by that time, fix that issue andd move this code into +load.
[GTXXCUIElementProxy installPlugin];
return self;
}
- (NSArray<UIAccessibilityElement *> *)gtx_onScreenAccessibilityElements {
NSArray<GTXXCUIElementProxy *> *proxies = [[self childrenMatchingType:0] allElementsBoundByIndex];
NSMutableArray<UIAccessibilityElement *> *elements = [[NSMutableArray alloc] init];
for (GTXXCUIElementProxy *proxy in proxies) {
[elements addObject:[proxy gtx_accessibilityElementWithContainer:self]];
}
return elements;
}
@end