FLTWebViewTests.m
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// Copyright 2019 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.
@import Flutter;
@import XCTest;
@import webview_flutter;
// OCMock library doesn't generate a valid modulemap.
#import <OCMock/OCMock.h>
static bool feq(CGFloat a, CGFloat b) { return fabs(b - a) < FLT_EPSILON; }
@interface FLTWebViewTests : XCTestCase
@property(strong, nonatomic) NSObject<FlutterBinaryMessenger> *mockBinaryMessenger;
@end
@implementation FLTWebViewTests
- (void)setUp {
[super setUp];
self.mockBinaryMessenger = OCMProtocolMock(@protocol(FlutterBinaryMessenger));
}
- (void)testCanInitFLTWebViewController {
FLTWebViewController *controller =
[[FLTWebViewController alloc] initWithFrame:CGRectMake(0, 0, 300, 400)
viewIdentifier:1
arguments:nil
binaryMessenger:self.mockBinaryMessenger];
XCTAssertNotNil(controller);
}
- (void)testCanInitFLTWebViewFactory {
FLTWebViewFactory *factory =
[[FLTWebViewFactory alloc] initWithMessenger:self.mockBinaryMessenger];
XCTAssertNotNil(factory);
}
- (void)webViewContentInsetBehaviorShouldBeNeverOnIOS11 {
if (@available(iOS 11, *)) {
FLTWebViewController *controller =
[[FLTWebViewController alloc] initWithFrame:CGRectMake(0, 0, 300, 400)
viewIdentifier:1
arguments:nil
binaryMessenger:self.mockBinaryMessenger];
UIView *view = controller.view;
XCTAssertTrue([view isKindOfClass:WKWebView.class]);
WKWebView *webView = (WKWebView *)view;
XCTAssertEqual(webView.scrollView.contentInsetAdjustmentBehavior,
UIScrollViewContentInsetAdjustmentNever);
}
}
- (void)testWebViewScrollIndicatorAticautomaticallyAdjustsScrollIndicatorInsetsShouldbeNoOnIOS13 {
if (@available(iOS 13, *)) {
FLTWebViewController *controller =
[[FLTWebViewController alloc] initWithFrame:CGRectMake(0, 0, 300, 400)
viewIdentifier:1
arguments:nil
binaryMessenger:self.mockBinaryMessenger];
UIView *view = controller.view;
XCTAssertTrue([view isKindOfClass:WKWebView.class]);
WKWebView *webView = (WKWebView *)view;
XCTAssertFalse(webView.scrollView.automaticallyAdjustsScrollIndicatorInsets);
}
}
- (void)testContentInsetsSumAlwaysZeroAfterSetFrame {
FLTWKWebView *webView = [[FLTWKWebView alloc] initWithFrame:CGRectMake(0, 0, 300, 400)];
webView.scrollView.contentInset = UIEdgeInsetsMake(0, 0, 300, 0);
XCTAssertFalse(UIEdgeInsetsEqualToEdgeInsets(webView.scrollView.contentInset, UIEdgeInsetsZero));
webView.frame = CGRectMake(0, 0, 300, 200);
XCTAssertTrue(UIEdgeInsetsEqualToEdgeInsets(webView.scrollView.contentInset, UIEdgeInsetsZero));
XCTAssertTrue(CGRectEqualToRect(webView.frame, CGRectMake(0, 0, 300, 200)));
if (@available(iOS 11, *)) {
// After iOS 11, we need to make sure the contentInset compensates the adjustedContentInset.
UIScrollView *partialMockScrollView = OCMPartialMock(webView.scrollView);
UIEdgeInsets insetToAdjust = UIEdgeInsetsMake(0, 0, 300, 0);
OCMStub(partialMockScrollView.adjustedContentInset).andReturn(insetToAdjust);
XCTAssertTrue(UIEdgeInsetsEqualToEdgeInsets(webView.scrollView.contentInset, UIEdgeInsetsZero));
webView.frame = CGRectMake(0, 0, 300, 100);
XCTAssertTrue(feq(webView.scrollView.contentInset.bottom, -insetToAdjust.bottom));
XCTAssertTrue(CGRectEqualToRect(webView.frame, CGRectMake(0, 0, 300, 100)));
}
}
@end