Go Unit Test

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Go Unit Test

• Go Unit Test
  • Overview
  • Instance
  • Reference documents

Overview

Go provides a package for automated testing testing ,

Suppose we have a file youfile.go , then the name of the test file is created, yourfile_test.go and the file has a test function in the form of the following:

func TestXxx(*testing.T)

TestXxx Xxx The first letter in X it must be uppercase.

Place your source files yourfile.go in the yourfile_test.go same directory.
go testRun with Command

Instance

Here you use the Https://github.com/golang/example/tree/master/stringutil file test
There are two files in the Stringutil directory: reverse.go andreverse_test.go

Reverse.go

package stringutil// Reverse returns its argument string reversed rune-wise left to right.funcstringstring {    r := []rune(s)    for i, j := 0len(r)-1len(r)/2; i, j = i+1, j-1 {        r[i], r[j] = r[j], r[i]    }    returnstring(r)}

Reverse_test.go

package stringutilimport"testing"func TestReverse(t *testing.T) {    forrange []struct {        string    } {        {"Hello, world""dlrow ,olleH"},        {"Hello, 世界""界世 ,olleH"},        {""""},    } {        got := Reverse(c.in)        if got != c.want {            t.Errorf("Reverse(%q) == %q, want %q", c.in, got, c.want)        }    }}

Run results

[stringnutil]# go testPASSok    stringutil  0.002s

Reference documents

Pkg/testing