github.com/sams1990/dockerrepo@v17.12.1-ce-rc2+incompatible/integration-cli/requirement/requirement.go (about)

     1  package requirement
     2  
     3  import (
     4  	"fmt"
     5  	"path"
     6  	"reflect"
     7  	"runtime"
     8  	"strings"
     9  )
    10  
    11  // SkipT is the interface required to skip tests
    12  type SkipT interface {
    13  	Skip(reason string)
    14  }
    15  
    16  // Test represent a function that can be used as a requirement validation.
    17  type Test func() bool
    18  
    19  // Is checks if the environment satisfies the requirements
    20  // for the test to run or skips the tests.
    21  func Is(s SkipT, requirements ...Test) {
    22  	for _, r := range requirements {
    23  		isValid := r()
    24  		if !isValid {
    25  			requirementFunc := runtime.FuncForPC(reflect.ValueOf(r).Pointer()).Name()
    26  			s.Skip(fmt.Sprintf("unmatched requirement %s", extractRequirement(requirementFunc)))
    27  		}
    28  	}
    29  }
    30  
    31  func extractRequirement(requirementFunc string) string {
    32  	requirement := path.Base(requirementFunc)
    33  	return strings.SplitN(requirement, ".", 2)[1]
    34  }