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37 lines
1.0 KiB
Go
37 lines
1.0 KiB
Go
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package matchers
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import (
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"errors"
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"fmt"
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"github.com/onsi/gomega/format"
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)
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type HaveExistingFieldMatcher struct {
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Field string
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}
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func (matcher *HaveExistingFieldMatcher) Match(actual interface{}) (success bool, err error) {
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// we don't care about the field's actual value, just about any error in
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// trying to find the field (or method).
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_, err = extractField(actual, matcher.Field, "HaveExistingField")
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if err == nil {
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return true, nil
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}
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var mferr missingFieldError
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if errors.As(err, &mferr) {
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// missing field errors aren't errors in this context, but instead
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// unsuccessful matches.
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return false, nil
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}
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return false, err
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}
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func (matcher *HaveExistingFieldMatcher) FailureMessage(actual interface{}) (message string) {
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return fmt.Sprintf("Expected\n%s\nto have field '%s'", format.Object(actual, 1), matcher.Field)
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}
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func (matcher *HaveExistingFieldMatcher) NegatedFailureMessage(actual interface{}) (message string) {
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return fmt.Sprintf("Expected\n%s\nnot to have field '%s'", format.Object(actual, 1), matcher.Field)
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}
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