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A small collection of functions for Go testing.

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Testing Functions for Go

Below is a small collection of testing functions for Go. You don't need to import this as a dependency. Just copy these to your project as needed.

No, seriously. They're tiny functions. Just copy them.

import (

// assert fails the test if the condition is false. func assert(tb testing.TB, condition bool, msg string, v ...interface{}) { if !condition { _, file, line, _ := runtime.Caller(1) fmt.Printf("\033[31m%s:%d: "+msg+"\033[39m\n\n", append([]interface{}{filepath.Base(file), line}, v...)...) tb.FailNow() } }

// ok fails the test if an err is not nil. func ok(tb testing.TB, err error) { if err != nil { _, file, line, _ := runtime.Caller(1) fmt.Printf("\033[31m%s:%d: unexpected error: %s\033[39m\n\n", filepath.Base(file), line, err.Error()) tb.FailNow() } }

// equals fails the test if exp is not equal to act. func equals(tb testing.TB, exp, act interface{}) { if !reflect.DeepEqual(exp, act) { _, file, line, _ := runtime.Caller(1) fmt.Printf("\033[31m%s:%d:\n\n\texp: %#v\n\n\tgot: %#v\033[39m\n\n", filepath.Base(file), line, exp, act) tb.FailNow() } }

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