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RuleTester swallows parsing errors when fixing #4779

nzakas opened this Issue Dec 21, 2015 · 0 comments


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nzakas commented Dec 21, 2015

I came across a problem with RuleTester where it swallows parsing errors when there's output specified in an invalid test case. Example:

    code: "var foo = `bar`;",
    output: "var foo = 'bar';",
    options: ["single"],
    errors: [{ message: "Strings must use singlequote.", type: "Literal"}]

This will fail to parse because ecmaVersion isn't set to 6, however, RuleTester just outputs "Output does not match." It should output the parsing error (I spent about an hour tracking this down).

@nzakas nzakas self-assigned this Dec 21, 2015

@nzakas nzakas added this to the v2.0.0 milestone Dec 21, 2015

@nzakas nzakas closed this in 71d83a2 Dec 22, 2015

gyandeeps added a commit that referenced this issue Dec 22, 2015

Merge pull request #4780 from eslint/issue4779
Fix: RuleTester to show parsing errors (fixes #4779)

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