realm-js/examples/ReactExample/ios/ReactExampleTests/ReactExampleTests.m

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////////////////////////////////////////////////////////////////////////////
//
// Copyright 2016 Realm 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 <UIKit/UIKit.h>
#import <XCTest/XCTest.h>
#import <React/RCTLog.h>
#import <React/RCTRootView.h>
#define TIMEOUT_SECONDS 600
#define TEXT_TO_LOOK_FOR @"My Todo Lists"
@interface ReactExampleTests : XCTestCase
@end
@implementation ReactExampleTests
- (BOOL)findSubviewInView:(UIView *)view matching:(BOOL(^)(UIView *view))test
{
if (test(view)) {
return YES;
}
for (UIView *subview in [view subviews]) {
if ([self findSubviewInView:subview matching:test]) {
return YES;
}
}
return NO;
}
- (void)testRendersWelcomeScreen
{
UIViewController *vc = [[[[UIApplication sharedApplication] delegate] window] rootViewController];
NSDate *date = [NSDate dateWithTimeIntervalSinceNow:TIMEOUT_SECONDS];
BOOL foundElement = NO;
__block NSString *redboxError = nil;
RCTSetLogFunction(^(RCTLogLevel level, RCTLogSource source, NSString *fileName, NSNumber *lineNumber, NSString *message) {
if (level >= RCTLogLevelError) {
redboxError = message;
}
});
while ([date timeIntervalSinceNow] > 0 && !foundElement && !redboxError) {
[[NSRunLoop mainRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]];
[[NSRunLoop mainRunLoop] runMode:NSRunLoopCommonModes beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]];
foundElement = [self findSubviewInView:vc.view matching:^BOOL(UIView *view) {
if ([view.accessibilityLabel isEqualToString:TEXT_TO_LOOK_FOR]) {
return YES;
}
return NO;
}];
}
RCTSetLogFunction(RCTDefaultLogFunction);
XCTAssertNil(redboxError, @"RedBox error: %@", redboxError);
XCTAssertTrue(foundElement, @"Couldn't find element with text '%@' in %d seconds", TEXT_TO_LOOK_FOR, TIMEOUT_SECONDS);
}
@end