gotests

作者: jason24L | 来源:发表于2022-05-27 11:57 被阅读0次

Go单元测试

go 程序中一般使用官方的go test 做测试,面对一些复杂情况和紧急需求写单元测试就变得有些仓促,今天介绍一款利器gotests来写单元测试

安装

go get -u github.com/cweill/gotests/...

以一个不同类型比较相等的列子做个测试,下面是一个simple.go文件

package simple

import "reflect"

type Point struct {
    X int
    Y int
}

type Circular struct {
    Point
    Peri float32
}


type PointCollect struct {
    Points []Point
}

// 数组相等
func TArrayEqual(a, b [10]int) bool {
    if a == b {
        return true
    }

    return false
}

// 切片相等
func TSliceEqual(a, b []int) bool {
    if reflect.DeepEqual(a, b) {
        return true
    }

    return false
}

// 字典相等
func TMapEqual(a, b map[string]string) bool {
    if reflect.DeepEqual(a, b) {
        return true
    }

    return false
}

// 结构体相等
func TPointEqual(a, b Point) bool {
    if a == b {
        return true
    }

    return false
}

// 结构体相等
func TCircularEqual(a, b Circular) bool {
    if a == b {
        return true
    }

    return false
}

// 切片结构体相等
func TPointCollect(a, b PointCollect) bool  {
    if reflect.DeepEqual(a, b) {
        return true
    }

    return false
}

执行

gotests -all -w simple.go

执行这个命令会自动生成simple_test.go文件 -all命令为所有的函数生成测试函数

func TestTArrayEqual(t *testing.T) {
    type args struct {
        a [10]int
        b [10]int
    }
    tests := []struct {
        name string
        args args
        want bool
    }{
        // TODO: Add test cases.
    }

    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            if got := TArrayEqual(tt.args.a, tt.args.b); got != tt.want {
                t.Errorf("TArrayEqual() = %v, want %v", got, tt.want)
            }
        })
    }
}
...

只需要填写对应的test cases 就可以了

package simple

import "testing"

func TestTArrayEqual(t *testing.T) {
    type args struct {
        a [10]int
        b [10]int
    }
    tests := []struct {
        name string
        args args
        want bool
    }{
        // TODO: Add test cases.
        {
            name: "good case",
            args: args{
                a: [10]int{1, 2, 3, 4},
                b: [10]int{1, 2, 3, 4},
            },
            want: true,
        },
        {
            name: "bad case",
            args: args{
                a: [10]int{1, 2, 3},
                b: [10]int{1, 2, 3, 4},
            },
            want: false,
        },
    }

    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            if got := TArrayEqual(tt.args.a, tt.args.b); got != tt.want {
                t.Errorf("TArrayEqual() = %v, want %v", got, tt.want)
            }
        })
    }
}

func TestTSliceEqual(t *testing.T) {
    type args struct {
        a []int
        b []int
    }
    tests := []struct {
        name string
        args args
        want bool
    }{
        // TODO: Add test cases.
        {
            name: "good case",
            args: args{
                a: []int{1, 2, 3},
                b: []int{1, 2, 3},
            },
            want: true,
        },
        {
            name: "bad case",
            args: args{
                a: []int{1, 2, 3, 4},
                b: []int{1, 2, 3},
            },
            want: false,
        },
    }
    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            if got := TSliceEqual(tt.args.a, tt.args.b); got != tt.want {
                t.Errorf("TSliceEqual() = %v, want %v", got, tt.want)
            }
        })
    }
}

func TestTMapEqual(t *testing.T) {
    type args struct {
        a map[string]string
        b map[string]string
    }
    tests := []struct {
        name string
        args args
        want bool
    }{
        // TODO: Add test cases.
        {
            name: "good case",
            args: args{
                a: map[string]string{"a":"1", "b":"2", "c":"3"},
                b: map[string]string{"a":"1", "b":"2", "c":"3"},
            },
            want: true,
        },
        {
            name: "bad case",
            args: args{
                a: map[string]string{"a":"1", "b":"2", "c":"3"},
                b: map[string]string{"d":"4", "e":"5", "f":"6"},
            },
            want: false,
        },
    }

    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            if got := TMapEqual(tt.args.a, tt.args.b); got != tt.want {
                t.Errorf("TMapEqual() = %v, want %v", got, tt.want)
            }
        })
    }
}

func TestTPointEqual(t *testing.T) {
    type args struct {
        a Point
        b Point
    }
    tests := []struct {
        name string
        args args
        want bool
    }{
        // TODO: Add test cases.
        {
            name: "good case",
            args: args{
                a: Point{X: 1, Y: 2},
                b: Point{X: 1, Y: 2},
            },
            want: true,
        },
        {
            name: "bad case",
            args: args{
                a: Point{X: 1, Y: 1},
                b: Point{X: 1, Y: 2},
            },
            want: false,
        },
    }
    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            if got := TPointEqual(tt.args.a, tt.args.b); got != tt.want {
                t.Errorf("TPointEqual() = %v, want %v", got, tt.want)
            }
        })
    }
}

func TestTCircularEqual(t *testing.T) {
    type args struct {
        a Circular
        b Circular
    }
    tests := []struct {
        name string
        args args
        want bool
    }{
        // TODO: Add test cases.
        {
            name: "good case",
            args: args{
                a: Circular{
                    Point: Point{X: 1, Y: 1},
                    Peri:  1.5,
                },
                b: Circular{
                    Point: Point{X: 1, Y: 1},
                    Peri:  1.5,
                },
            },
            want: true,
        },
        {
            name: "good case",
            args: args{
                a: Circular{
                    Point: Point{X: 1, Y: 1},
                    Peri:  1.5,
                },
                b: Circular{
                    Point: Point{X: 1, Y: 1},
                    Peri:  2.5,
                },
            },
            want: false,
        },
    }

    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            if got := TCircularEqual(tt.args.a, tt.args.b); got != tt.want {
                t.Errorf("TCircularEqual() = %v, want %v", got, tt.want)
            }
        })
    }
}

func TestTPointCollect(t *testing.T) {
    type args struct {
        a PointCollect
        b PointCollect
    }
    tests := []struct {
        name string
        args args
        want bool
    }{
        // TODO: Add test cases.
        {
            name: "good case",
            args: args{
                a: PointCollect{[]Point{{
                        X: 1,
                        Y: 1,
                    }, {
                        X: 1,
                        Y: 2,
                    }}},
                b: PointCollect{[]Point{{
                    X: 1,
                    Y: 1,
                }, {
                    X: 1,
                    Y: 2,
                }}},
            },
            want: true,
        },
        {
            name: "bad case",
            args: args{
                a: PointCollect{[]Point{{
                    X: 1,
                    Y: 1,
                }, {
                    X: 1,
                    Y: 2,
                }}},
                b: PointCollect{[]Point{{
                    X: 2,
                    Y: 2,
                }, {
                    X: 2,
                    Y: 4,
                }}},
            },
            want: false,
        },
    }
    for _, tt := range tests {
        t.Run(tt.name, func(t *testing.T) {
            if got := TPointCollect(tt.args.a, tt.args.b); got != tt.want {
                t.Errorf("TPointCollect() = %v, want %v", got, tt.want)
            }
        })
    }
}

测试

go test -v

=== RUN   TestTArrayEqual
=== RUN   TestTArrayEqual/good_case
=== RUN   TestTArrayEqual/bad_case
--- PASS: TestTArrayEqual (0.00s)
    --- PASS: TestTArrayEqual/good_case (0.00s)
    --- PASS: TestTArrayEqual/bad_case (0.00s)
=== RUN   TestTSliceEqual
=== RUN   TestTSliceEqual/good_case
=== RUN   TestTSliceEqual/bad_case
--- PASS: TestTSliceEqual (0.00s)
    --- PASS: TestTSliceEqual/good_case (0.00s)
    --- PASS: TestTSliceEqual/bad_case (0.00s)
=== RUN   TestTMapEqual
=== RUN   TestTMapEqual/good_case
=== RUN   TestTMapEqual/bad_case
--- PASS: TestTMapEqual (0.00s)
    --- PASS: TestTMapEqual/good_case (0.00s)
    --- PASS: TestTMapEqual/bad_case (0.00s)
=== RUN   TestTPointEqual
=== RUN   TestTPointEqual/good_case
=== RUN   TestTPointEqual/bad_case
--- PASS: TestTPointEqual (0.00s)
    --- PASS: TestTPointEqual/good_case (0.00s)
    --- PASS: TestTPointEqual/bad_case (0.00s)
=== RUN   TestTCircularEqual
=== RUN   TestTCircularEqual/good_case
=== RUN   TestTCircularEqual/good_case#01
--- PASS: TestTCircularEqual (0.00s)
    --- PASS: TestTCircularEqual/good_case (0.00s)
    --- PASS: TestTCircularEqual/good_case#01 (0.00s)
=== RUN   TestTPointCollect
=== RUN   TestTPointCollect/good_case
=== RUN   TestTPointCollect/bad_case
--- PASS: TestTPointCollect (0.00s)
    --- PASS: TestTPointCollect/good_case (0.00s)
    --- PASS: TestTPointCollect/bad_case (0.00s)
PASS

看到写的测试已经全部通过了

总结

写单元测试是很多程序员不喜欢面对了,今天介绍的gotests自动生成测试文件的工具,减少了写测试文件的负担,能够大大提高程序的健壮性和稳定性 。

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