Why is my UIWebView empty in my unit test?
I'm putting app-generated content into a UIWebView, and trying to test that I'm doing it correctly. Here's the HTML string I'm putting into the web view:
@"<html><head></head><body><p>Come, let me clutch thee. I have thee not, and yet I see thee still. Art thou not, fatal vision, sensible to feeling as to sight?</p></body></html>"
And it gets into the web view thus:
[self.webView loadHTMLString: [self HTMLStringForSnippet: model.body] baseURL: nil];
where model.body contains just the <p/> element, and -HTMLStringForSnippet: wraps it into well-formed HTML. In my test, I rely on the answers to this question to retrieve the H开发者_StackOverflow中文版TML content of the body via JavaScript:
- (void)testCorrectHTMLLoadedInWebView {
UIWebView *bodyView = controller.webView;
NSString *bodyHTML = [bodyView stringByEvaluatingJavaScriptFromString: @"document.body.innerHTML"];
STAssertEqualObjects(bodyHTML, model.body, @"Model body should be used for the web view content");
}
While I can see by stepping through the code that the UIWebView is created correctly and is passed the correct HTML in -loadHTMLString:baseURL:, in the test bodyHTML is empty. So what do I have to do to see the actual content I expect and previously passed to the web view?
It takes a noticeable time for the UIWebView to render therefore the problem may be that you access the content before it is fully loaded.
Hook on UIWebViewDelegate's webViewDidFinishLoad: method to make sure the content is ready.
Update: Maybe WebViewJavascriptBridge will bring some help.
加载中,请稍侯......
精彩评论