file_operation_test.go

file_operation_test.go

package main

import (
	"os"
	"testing"

	"github.com/sclevine/spec"
	. "github.com/onsi/gomega"
)

func testFileOperation(t *testing.T, context spec.G, it spec.S) {
	var (
		Expect = NewWithT(t).Expect
		path   string
	)

	it.Before(func() {
		file, err := os.CreateTemp("", "test.txt")
		Expect(err).NotTo(HaveOccurred())
		defer file.Close()
		path = file.Name()
	})

	it.After(func() {
		Expect(os.RemoveAll(path)).To(Succeed())
	})

	context("when test.txt cannot be opened", func() {
		it.Before(func() {
			Expect(os.Chmod(path, 0000)).To(Succeed())
		})

		it("returns an error", func() {
			_, err := parser.Parse(path)
			Expect(err).To(MatchError(ContainSubstring("failed to parse cpanfile.snapshot:")))
			Expect(err).To(MatchError(ContainSubstring("permission denied")))
		})
	})
}