forked from mystiq/dex
35 lines
1.3 KiB
Go
35 lines
1.3 KiB
Go
package matchers
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import (
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"fmt"
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"reflect"
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"github.com/onsi/gomega/format"
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)
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type AssignableToTypeOfMatcher struct {
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Expected interface{}
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}
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func (matcher *AssignableToTypeOfMatcher) Match(actual interface{}) (success bool, err error) {
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if actual == nil && matcher.Expected == nil {
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return false, fmt.Errorf("Refusing to compare <nil> to <nil>.\nBe explicit and use BeNil() instead. This is to avoid mistakes where both sides of an assertion are erroneously uninitialized.")
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} else if matcher.Expected == nil {
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return false, fmt.Errorf("Refusing to compare type to <nil>.\nBe explicit and use BeNil() instead. This is to avoid mistakes where both sides of an assertion are erroneously uninitialized.")
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} else if actual == nil {
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return false, nil
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}
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actualType := reflect.TypeOf(actual)
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expectedType := reflect.TypeOf(matcher.Expected)
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return actualType.AssignableTo(expectedType), nil
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}
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func (matcher *AssignableToTypeOfMatcher) FailureMessage(actual interface{}) string {
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return format.Message(actual, fmt.Sprintf("to be assignable to the type: %T", matcher.Expected))
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}
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func (matcher *AssignableToTypeOfMatcher) NegatedFailureMessage(actual interface{}) string {
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return format.Message(actual, fmt.Sprintf("not to be assignable to the type: %T", matcher.Expected))
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}
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