github.com/gofunct/common@v0.0.0-20190131174352-fd058c7fbf22/pkg/temp/temptest/example_test.go (about) 1 package temptest 2 3 import ( 4 "errors" 5 "fmt" 6 "io" 7 8 "github.com/gofunct/common/pkg/temp" 9 ) 10 11 func TestedCode(dir temp.Directory) error { 12 f, err := dir.NewFile("filename") 13 if err != nil { 14 return err 15 } 16 _, err = io.WriteString(f, "Bonjour!") 17 if err != nil { 18 return err 19 } 20 return dir.Delete() 21 } 22 23 func Example() { 24 dir := FakeDir{} 25 26 err := TestedCode(&dir) 27 if err != nil { 28 panic(err) 29 } 30 31 if dir.Deleted == false { 32 panic(errors.New("Directory should have been deleted")) 33 } 34 35 if dir.Files["filename"] == nil { 36 panic(errors.New(`"filename" should have been created`)) 37 } 38 39 fmt.Println(dir.Files["filename"].Buffer.String()) 40 // Output: Bonjour! 41 }