package testutil

import (
	"fmt"
	"os"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestExecHelper(_ *testing.T) {
	if !WantHelperProcess() {
		return
	}

	if os.Getenv("PASS") != "1" {
		fmt.Fprintln(os.Stdout, "tests failed")
		os.Exit(1)
	}

	fmt.Fprintln(os.Stdout, "tests succeed")
}

func TestExec(t *testing.T) {
	tests := []struct {
		helper    string
		env       string
		expOut    string
		expErrMsg string
	}{
		{
			helper:    "NoTestsToRun",
			expErrMsg: "no tests to run",
		}, {
			helper:    "TestExecHelper",
			expErrMsg: "exit status 1 - tests failed\n",
		}, {
			helper: "TestExecHelper",
			env:    "PASS=1",
			expOut: "tests succeed",
		},
	}
	for _, test := range tests {
		t.Run("", func(t *testing.T) {
			out, err := Exec(test.helper, test.env)
			if test.expErrMsg != "" {
				assert.Error(t, err)
				assert.Contains(t, err.Error(), test.expErrMsg)
			} else {
				assert.NoError(t, err)
			}
			assert.Equal(t, test.expOut, out)
		})
	}
}