c8cf03f200
The rtts assertion lib is only needed for js, but it should be treated like any other module (e.g. facade, …)
45 lines
1.1 KiB
Markdown
45 lines
1.1 KiB
Markdown
// Asserting APIs:
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// - generated by Traceur (based on type annotations)
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// - can be also used in tests for instance
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assert.type(something, Type);
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assert.returnType(returnValue, Type);
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assert.argumentTypes(firstArg, Type, secondArg, Type);
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// this can be used anywhere in the code
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// (useful inside test, when we don't wanna define an interface)
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assert(value).is(...)
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// Custom type assert:
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// - i have a custom type
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// - adding an assert methos
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assert.define(MyUser, function(value) {
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assert(value).is(Type, Type2); // or
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assert(value, 'name').is(assert.string);
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assert(value, 'contact').is(assert.structure({
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email: assert.string,
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cell: assert.string
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}));
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assert(value, 'contacts').is(assert.arrayOf(assert.structure({email: assert.string})));
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});
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// Define interface (an empty type with assert method)
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// - returns an empty class with assert method
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var Email = assert.define('IEmail', function(value) {
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assert(value).is(String);
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if (value.indexOf('@') !== -1) {
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assert.fail('has to contain "@"');
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}
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});
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// Predefined types
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assert.string
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assert.number
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assert.boolean
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assert.arrayOf(...types)
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assert.structure(object)
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