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'console' is undefined with Qunit in IE 9 #212

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carhartl opened this issue Jan 2, 2019 · 2 comments
Open

'console' is undefined with Qunit in IE 9 #212

carhartl opened this issue Jan 2, 2019 · 2 comments

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@carhartl
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@carhartl carhartl commented Jan 2, 2019

Expected Behavior

QUnit test suite with 1 simple test passes successfully.

Actual Behavior

QUnit test suite with 1 simple test fails with global failure due to error `'console' is undefined (see screenshot).

Steps to Reproduce the Problem

  1. single test suite index.html
<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>Test Suite</title>
		<link href="node_modules/qunitjs/qunit/qunit.css" rel="stylesheet">
		<script src="node_modules/qunitjs/qunit/qunit.js"></script>
		<script>
			QUnit.test('simple value', function (assert) {
				assert.expect(1);
				assert.strictEqual(true, true, 'testing...');
			});
		</script>
	</head>
	<body>
		<div id="qunit"></div>
		<div id="qunit-fixture"></div>
	</body>
</html>
  1. browserstack config:
{
    "test_framework" : "qunit",
    "test_path": [
        "index.html"
    ],
    "exit_with_fail": true,
    "browsers": [
        "ie_9"
    ]
}
  1. Execute node_modules/.bin/browserstack-runner

Platform details

  1. browserstack-runner version: 0.9.0
  2. node version: v11.6.0
  3. os type and version: OSX Mojave 10.14.2

Details

See screenshot:

screenshot 2019-01-02 at 19 22 54

The error points to:

browserstack-runner/lib/_patch/browserstack.js

Line 40 in 52b23f0

var browserstack_console = console || window.console || {};

If I remember IE pecularities correctly this might be because you cannot do var x = foo || ... when foo has never been set up before, i.e. is very much indeed undefined. A test like typeof foo == 'undefined' might work better/be needed. This could be IE 6-8 knowledge though.

PS: also, the runner will just hang until it times out...

Launching 1 worker(s) for 1 run(s).
[Windows 7, Internet Explorer 9.0] Launching
[Windows 7, Internet Explorer 9.0] Received ack
[Windows 7, Internet Explorer 9.0] Launched
[Windows 7, Internet Explorer 9.0] Awaiting ack
@carhartl carhartl mentioned this issue Jan 2, 2019
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@carhartl
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@carhartl carhartl commented Jan 2, 2019

https://stackoverflow.com/a/14714140

Secondly, I learned that console is only available in IE 9 if developer tools are open.
@carhartl
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@carhartl carhartl commented Jan 2, 2019

Using https://github.com/paulmillr/console-polyfill I can workaround this problem...
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