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vet optional description args in assertions, fixing onsi#560
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Original file line number | Diff line number | Diff line change |
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package internal | ||
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import ( | ||
"fmt" | ||
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"github.com/onsi/gomega/types" | ||
) | ||
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// vetOptionalDescription vets the optional description args: if it finds any | ||
// Gomega matcher at the beginning it panics. This allows for rendering Gomega | ||
// matchers as part of an optional Description, as long as they're not in the | ||
// first slot. | ||
func vetOptionalDescription(assertion string, optionalDescription ...interface{}) { | ||
if len(optionalDescription) == 0 { | ||
return | ||
} | ||
if _, isGomegaMatcher := optionalDescription[0].(types.GomegaMatcher); isGomegaMatcher { | ||
panic(fmt.Sprintf("%s has a GomegaMatcher as the first element of optionalDescription.\n\t"+ | ||
"Do you mean to use And/Or/SatisfyAll/SatisfyAny to combine multiple matchers?", | ||
assertion)) | ||
} | ||
} |