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

     1  // untested sections: 3
     2  
     3  package matchers
     4  
     5  import (
     6  	"fmt"
     7  	"os"
     8  
     9  	"github.com/onsi/gomega/format"
    10  )
    11  
    12  type BeAnExistingFileMatcher struct {
    13  	expected interface{}
    14  }
    15  
    16  func (matcher *BeAnExistingFileMatcher) Match(actual interface{}) (success bool, err error) {
    17  	actualFilename, ok := actual.(string)
    18  	if !ok {
    19  		return false, fmt.Errorf("BeAnExistingFileMatcher matcher expects a file path")
    20  	}
    21  
    22  	if _, err = os.Stat(actualFilename); err != nil {
    23  		switch {
    24  		case os.IsNotExist(err):
    25  			return false, nil
    26  		default:
    27  			return false, err
    28  		}
    29  	}
    30  
    31  	return true, nil
    32  }
    33  
    34  func (matcher *BeAnExistingFileMatcher) FailureMessage(actual interface{}) (message string) {
    35  	return format.Message(actual, "to exist")
    36  }
    37  
    38  func (matcher *BeAnExistingFileMatcher) NegatedFailureMessage(actual interface{}) (message string) {
    39  	return format.Message(actual, "not to exist")
    40  }