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Add type checks for asymmetric matchers #5069

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Merged
cpojer merged 3 commits into from
Jan 7, 2018
Merged

Add type checks for asymmetric matchers #5069

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Add type checks for asymmetric matchers
rogeliog Dec 12, 2017
16307e7
Merge branch 'master' into fix-asymmetric-matchers
rogeliog Jan 5, 2018
4d9bb83
Expect other to only be a string
rogeliog Jan 5, 2018
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Expect other to only be a string
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@rogeliog
rogeliog committed Jan 5, 2018
commit 4d9bb831818621b28f782ae7340edb196afef41e
2 changes: 1 addition & 1 deletion packages/expect/src/asymmetric_matchers.js
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Expand Up @@ -222,7 +222,7 @@ class StringMatching extends AsymmetricMatcher {
}

asymmetricMatch(other: string) {
if (!isA('String', other) && !isA('RegExp', other)) {
if (!isA('String', other)) {
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@thymikee thymikee Jan 6, 2018

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According to our docs, stringMatching() accepts a regexp. Mind changing the type and runtime check?

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@cpojer cpojer Jan 6, 2018

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cc @rogeliog can you take a look at this?

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@pedrottimark pedrottimark Jan 6, 2018

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@thymikee The StringMatching constructor does indeed take either string or RegExp, but argument of the asymmetricMatch function takes only string as received value, true?

That is, expect.stringMatching(/^Alic/) returns true when the received value is 'Alicia' or false when the received value is 'Bob' but should report an error if the received value is a RegExp, because how to decide if a received RegExp matches an expected RegExp?

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@thymikee thymikee Jan 6, 2018

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@pedrottimark you're right, I mistaken other with sample

return false;
}

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