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Original file line number | Diff line number | Diff line change |
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package matchers | ||
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import ( | ||
"fmt" | ||
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"github.com/bsm/gomega/format" | ||
) | ||
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type mismatchFailure struct { | ||
failure string | ||
index int | ||
} | ||
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type HaveExactElementsMatcher struct { | ||
Elements []interface{} | ||
mismatchFailures []mismatchFailure | ||
missingIndex int | ||
extraIndex int | ||
} | ||
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func (matcher *HaveExactElementsMatcher) Match(actual interface{}) (success bool, err error) { | ||
matcher.resetState() | ||
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if isMap(actual) { | ||
return false, fmt.Errorf("error") | ||
} | ||
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matchers := matchers(matcher.Elements) | ||
values := valuesOf(actual) | ||
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lenMatchers := len(matchers) | ||
lenValues := len(values) | ||
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for i := 0; i < lenMatchers || i < lenValues; i++ { | ||
if i >= lenMatchers { | ||
matcher.extraIndex = i | ||
continue | ||
} | ||
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if i >= lenValues { | ||
matcher.missingIndex = i | ||
return | ||
} | ||
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elemMatcher := matchers[i].(omegaMatcher) | ||
match, err := elemMatcher.Match(values[i]) | ||
if err != nil || !match { | ||
matcher.mismatchFailures = append(matcher.mismatchFailures, mismatchFailure{ | ||
index: i, | ||
failure: elemMatcher.FailureMessage(values[i]), | ||
}) | ||
} | ||
} | ||
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return matcher.missingIndex+matcher.extraIndex+len(matcher.mismatchFailures) == 0, nil | ||
} | ||
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func (matcher *HaveExactElementsMatcher) FailureMessage(actual interface{}) (message string) { | ||
message = format.Message(actual, "to have exact elements with", presentable(matcher.Elements)) | ||
if matcher.missingIndex > 0 { | ||
message = fmt.Sprintf("%s\nthe missing elements start from index %d", message, matcher.missingIndex) | ||
} | ||
if matcher.extraIndex > 0 { | ||
message = fmt.Sprintf("%s\nthe extra elements start from index %d", message, matcher.extraIndex) | ||
} | ||
if len(matcher.mismatchFailures) != 0 { | ||
message = fmt.Sprintf("%s\nthe mismatch indexes were:", message) | ||
} | ||
for _, mismatch := range matcher.mismatchFailures { | ||
message = fmt.Sprintf("%s\n%d: %s", message, mismatch.index, mismatch.failure) | ||
} | ||
return | ||
} | ||
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func (matcher *HaveExactElementsMatcher) NegatedFailureMessage(actual interface{}) (message string) { | ||
return format.Message(actual, "not to contain elements", presentable(matcher.Elements)) | ||
} | ||
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func (matcher *HaveExactElementsMatcher) resetState() { | ||
matcher.mismatchFailures = nil | ||
matcher.missingIndex = 0 | ||
matcher.extraIndex = 0 | ||
} |