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package matchers
import (
"fmt"
"github.com/onsi/gomega/format"
"strings"
)
type ContainSubstringMatcher struct {
Substr string
Args []interface{}
}
func (matcher *ContainSubstringMatcher) Match(actual interface{}) (success bool, err error) {
actualString, ok := toString(actual)
if !ok {
return false, fmt.Errorf("ContainSubstring matcher requires a string or stringer. Got:\n%s", format.Object(actual, 1))
}
return strings.Contains(actualString, matcher.stringToMatch()), nil
}
func (matcher *ContainSubstringMatcher) stringToMatch() string {
stringToMatch := matcher.Substr
if len(matcher.Args) > 0 {
stringToMatch = fmt.Sprintf(matcher.Substr, matcher.Args...)
}
return stringToMatch
}
func (matcher *ContainSubstringMatcher) FailureMessage(actual interface{}) (message string) {
return format.Message(actual, "to contain substring", matcher.stringToMatch())
}
func (matcher *ContainSubstringMatcher) NegatedFailureMessage(actual interface{}) (message string) {
return format.Message(actual, "not to contain substring", matcher.stringToMatch())
}
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