github.com/onsi/gomega@v1.32.0/matchers/contain_substring_matcher.go (about)

     1  // untested sections: 2
     2  
     3  package matchers
     4  
     5  import (
     6  	"fmt"
     7  	"strings"
     8  
     9  	"github.com/onsi/gomega/format"
    10  )
    11  
    12  type ContainSubstringMatcher struct {
    13  	Substr string
    14  	Args   []interface{}
    15  }
    16  
    17  func (matcher *ContainSubstringMatcher) Match(actual interface{}) (success bool, err error) {
    18  	actualString, ok := toString(actual)
    19  	if !ok {
    20  		return false, fmt.Errorf("ContainSubstring matcher requires a string or stringer.  Got:\n%s", format.Object(actual, 1))
    21  	}
    22  
    23  	return strings.Contains(actualString, matcher.stringToMatch()), nil
    24  }
    25  
    26  func (matcher *ContainSubstringMatcher) stringToMatch() string {
    27  	stringToMatch := matcher.Substr
    28  	if len(matcher.Args) > 0 {
    29  		stringToMatch = fmt.Sprintf(matcher.Substr, matcher.Args...)
    30  	}
    31  	return stringToMatch
    32  }
    33  
    34  func (matcher *ContainSubstringMatcher) FailureMessage(actual interface{}) (message string) {
    35  	return format.Message(actual, "to contain substring", matcher.stringToMatch())
    36  }
    37  
    38  func (matcher *ContainSubstringMatcher) NegatedFailureMessage(actual interface{}) (message string) {
    39  	return format.Message(actual, "not to contain substring", matcher.stringToMatch())
    40  }