25816a6e77
Custom object formatters allow users to customize how an object is
stringified in matcher failure messages. This can already be done by
adding a `jasmineToString` method to the objects in question. But
it's not always desirable or possible to do that, particularly when
objects of a given "type" do not inherit from a specific prototype.
For instance, suppose a web service returns a list of foos that are
deserialized from JSON, e.g.:
{ fooId: 42, /* more properties */ }
The only way to define `jasmineToString` on those is by writing code to
add it to each instance at runtime. But a custom object formatter can
recognize that the object it's looking at is a foo and format it
accordingly:
jasmine.addCustomObjectFormatter(function(obj) {
if (typeof obj.fooId !== 'number') {
return undefined;
}
return '[Foo with ID ' + obj.fooId + ']';
});
Unlike `jasmineToString`, custom object formatters are scoped to a
particular spec or suite and don't require any changes to the code
under test.
32 lines
828 B
JavaScript
32 lines
828 B
JavaScript
getJasmineRequireObj().ArrayWithExactContents = function(j$) {
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function ArrayWithExactContents(sample) {
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this.sample = sample;
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}
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ArrayWithExactContents.prototype.asymmetricMatch = function(other, matchersUtil) {
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if (!j$.isArray_(this.sample)) {
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throw new Error('You must provide an array to arrayWithExactContents, not ' + j$.pp(this.sample) + '.');
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}
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if (this.sample.length !== other.length) {
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return false;
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}
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for (var i = 0; i < this.sample.length; i++) {
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var item = this.sample[i];
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if (!matchersUtil.contains(other, item)) {
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return false;
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}
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}
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return true;
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};
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ArrayWithExactContents.prototype.jasmineToString = function(pp) {
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return '<jasmine.arrayWithExactContents(' + pp(this.sample) + ')>';
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};
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return ArrayWithExactContents;
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};
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