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gotests-templates

Custom go tests templates.

Features

  • Simply error message process and check if errors match.

  • Add testify package to optimize error output.

Example

Source file

package f

import "fmt"

func f1(a int) error {
	if a == 3 {
		return fmt.Errorf("err 3")
	}
	return nil
}

type D struct {
	name string
}

type E struct {
	id   int
	name string
	*F
}

type F struct {
	id int
}

func f4(b int) (int, string, *D, *E, error) {
	if b > 0 {

	}
	return 0, "", &D{
			name: "foo",
		}, &E{
			id:   0,
			name: "foo-E",
			F:    &F{id: 100},
		}, nil
}

test file

func Test_f1(t *testing.T) {
	assert := assert.New(t)
	type args struct {
		a int
	}
	tests := []struct {
		name string
		args args
		err  string
	}{
		{
			name: "simple",
			args: args{
				a: 0,
			},
			err: "",
		},
		{
			name: "err",
			args: args{
				a: 3,
			},
			err: "err 3 ",
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if err := f1(tt.args.a); err != nil {
				if tt.err == "" {
					t.Errorf("f1() return error: %v, but want nil", err)
				} else {
					assert.Contains(err.Error(), tt.err, "test: ["+tt.name+"] error message not eq")
				}
			}
		})
	}
}


func Test_f4(t *testing.T) {
	assert := assert.New(t)
	type args struct {
		b int
	}
	tests := []struct {
		name  string
		args  args
		want  int
		want1 string
		want2 *D
		want3 *E
		err   string
	}{
		{
			name:  "simple",
			args:  args{},
			want:  0,
			want1: "",
			want2: &D{name: "foo"},
			want3: &E{
				id:   0,
				name: "foo-E",
				F:    &F{id: 100},
			},
			err: "",
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, got1, got2, got3, err := f4(tt.args.b)
			if err != nil {
				if tt.err == "" {
					t.Errorf("f4() return error: %v, but want nil", err)
				} else {
					assert.Contains(err.Error(), tt.err, "test: ["+tt.name+"] error message not eq")
				}
				return
			}
			assert.Equalf(got, tt.want, "f4() got = %v, want %v", got, tt.want)
			assert.Equalf(got1, tt.want1, "f4() got1 = %v, want %v", got1, tt.want1)
			assert.Equalf(got2, tt.want2, "f4() got2 = %v, want %v", got2, tt.want2)
			assert.Equalf(got3, tt.want3, "f4() got3 = %v, want %v", got3, tt.want3)
		})
	}
}

Usage (VSCode)

Add gotests template path setting to ./vscode/setting.json

{
  ...,
  "go.generateTestsFlags": [
    "-template_dir",
    "./path/to/Ras96/gotests-template/templates" // Or templates2
  ],
  ...
}

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Custom go tests template

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