go-commitlint/internal/commitlint/commitlint_test.go

package commitlint

import (
	"github.com/stretchr/testify/assert"
	"os"
	"testing"
)

func TestReadCommitMessage(t *testing.T) {
	createTmpFile := func() string {
		tmpFile, err := os.CreateTemp("", "COMMIT_EDITMSG")
		if err != nil {
			panic(err)
		}
		defer func(tmpFile *os.File) {
			_ = tmpFile.Close()
		}(tmpFile)

		_, err = tmpFile.WriteString("Line 1\nLine 2\nLine 3")
		if err != nil {
			panic(err)
		}

		return tmpFile.Name()
	}

	exceptedContent := []string{"Line 1", "Line 2", "Line 3"}

	message, err := ReadCommitMessage(createTmpFile())
	if err != nil {
		panic(err)
	}

	assert.Equal(t, exceptedContent, message)
}