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29 lines
911 B
HTML
29 lines
911 B
HTML
<html>
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<link rel="import" href="../resources/chai.html" />
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<link rel="import" href="../resources/mocha.html" />
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<script>
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describe('MutationObserver', function() {
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var observer = new MutationObserver(function(mutations) { });
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it('should have methods', function() {
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assert.equal(typeof observer.observe, 'function');
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assert.equal(typeof observer.disconnect, 'function');
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});
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it('should throw with incorrect constructor args', function() {
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assert.throw(function() {
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new MutationObserver({ handleEvent: function() {} });
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}, TypeError);
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assert.throw(function() {
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new MutationObserver({});
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}, TypeError);
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assert.throw(function() {
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new MutationObserver(42);
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}, TypeError);
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assert.throw(function() {
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new MutationObserver("foo");
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}, TypeError);
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});
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});
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</script>
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</html>
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