How to use WriteFile method of integration_test Package

...35        - "gen/output.txt"36`37	err = os.MkdirAll(path.Join(projectDir, "godel", "config"), 0755)38	require.NoError(t, err)39	err = ioutil.WriteFile(path.Join(projectDir, "godel", "config", "generate-plugin.yml"), []byte(generateYML), 0644)40	require.NoError(t, err)41	specs := []gofiles.GoFileSpec{42		{43			RelPath: "gen/go.mod",44			Src: `module github.com/palantir/godel-generate-plugin/integration_test45`,46		},47		{48			RelPath: "gen/testbar.go",49			Src: `package testbar50//go:generate go run generator_main.go51`,52		},53		{54			RelPath: "gen/generator_main.go",55			Src: `// +build ignore56package main57import (58	"io/ioutil"59)60func main() {61	if err := ioutil.WriteFile("output.txt", []byte("foo-output"), 0644); err != nil {62		panic(err)63	}64}65`,66		},67	}68	_, err = gofiles.Write(projectDir, specs)69	require.NoError(t, err)70	err = ioutil.WriteFile(path.Join(projectDir, "gen", "output.txt"), []byte("original"), 0644)71	require.NoError(t, err)72	outputBuf := &bytes.Buffer{}73	runPluginCleanup, err := pluginapitester.RunPlugin(pluginapitester.NewPluginProvider(pluginPath), nil, "generate", []string{74		"--verify",75	}, projectDir, false, outputBuf)76	defer runPluginCleanup()77	require.EqualError(t, err, "")78	want := "Generators produced output that differed from what already exists: [foo]\n  foo:\n    gen/output.txt: previously had checksum 0682c5f2076f099c34cfdd15a9e063849ed437a49677e6fcc5b4198c76575be5, now has checksum 380a300b764683667309818ff127a401c6ea6ab1959f386fe0f05505d660ba37\n"79	assert.Equal(t, want, outputBuf.String())80}81func TestUpgradeConfig(t *testing.T) {82	pluginPath, err := products.Bin("generate-plugin")83	require.NoError(t, err)84	pluginProvider := pluginapitester.NewPluginProvider(pluginPath)...

1package integration_test2import (3	. "github.com/onsi/ginkgo"4	. "github.com/onsi/gomega"5	"github.com/onsi/gomega/gbytes"6	"github.com/onsi/gomega/gexec"7	"io/ioutil"8	"os/exec"9)10var _ = Describe("DeleteVm", func() {11	It("deletes a VM on the targeted IAAS", func() {12		configFile := writeFile(`13opsman-configuration:14  gcp:15    gcp_service_account: something16    project: dummy-project17    region: us-west118    zone: us-west1-c19    vm_name: opsman-vm20    vpc_subnet: dummy-subnet21    tags: good22    custom_cpu: 823    custom_memory: 1624    boot_disk_size: 40025    public_ip: 1.2.3.4`)26		stateFile := writeFile(`{"iaas": "gcp", "vm_id": "opsman-vm"}`)27		command := exec.Command(pathToMain, "vm-lifecycle", "delete-vm",28			"--config", configFile,29			"--state-file", stateFile,30		)31		session, err := gexec.Start(command, GinkgoWriter, GinkgoWriter)32		Expect(err).ToNot(HaveOccurred())33		Eventually(session, 5).Should(gexec.Exit(0))34		Eventually(session.Err).Should(gbytes.Say("gcloud compute instances delete"))35		contents, err := ioutil.ReadFile(stateFile)36		Expect(err).ToNot(HaveOccurred())37		Expect(contents).To(MatchYAML(`{"iaas": "gcp"}`))38	})39	Context("unrecognized flags", func() {40		It("throws an error", func() {41			command := exec.Command(pathToMain, "vm-lifecycle", "delete-vm",42				"--config", "",43				"--state-file", "state.yml",44				"--random",45			)46			session, err := gexec.Start(command, GinkgoWriter, GinkgoWriter)47			Expect(err).ToNot(HaveOccurred())48			Eventually(session, 5).Should(gexec.Exit(1))49			Eventually(session.Err).Should(gbytes.Say("unknown flag `random'"))50		})51	})52})...

1package integration_test2import (3	. "github.com/onsi/ginkgo"4	. "github.com/onsi/gomega"5	"github.com/onsi/gomega/gbytes"6	"github.com/onsi/gomega/gexec"7	"io/ioutil"8	"os/exec"9)10var _ = Describe("CreateVm", func() {11	It("creates a VM on the targeted IAAS", func() {12		imageFile := writeFile(`---13us: ops-manager-us-uri.tar.gz14eu: ops-manager-eu-uri.tar.gz15asia: ops-manager-asia-uri.tar.gz`)16		configFile := writeFile(`17opsman-configuration:18  gcp:19    gcp_service_account: something20    project: dummy-project21    region: us-west122    zone: us-west1-c23    vm_name: opsman-vm24    vpc_subnet: dummy-subnet25    tags: good26    custom_cpu: 827    custom_memory: 1628    boot_disk_size: 40029    public_ip: 1.2.3.430    private_ip: 10.0.0.2`)31		stateFile := writeFile("")32		command := exec.Command(pathToMain, "vm-lifecycle", "create-vm",33			"--image-file", imageFile,34			"--config", configFile,35			"--state-file", stateFile,36		)37		session, err := gexec.Start(command, GinkgoWriter, GinkgoWriter)38		Expect(err).ToNot(HaveOccurred())39		Eventually(session, 5).Should(gexec.Exit(0))40		Eventually(session.Err).Should(gbytes.Say("gcloud compute instances create"))41		contents, err := ioutil.ReadFile(stateFile)42		Expect(err).ToNot(HaveOccurred())43		Expect(contents).To(MatchYAML(`{"iaas": "gcp", "vm_id": "opsman-vm"}`))44	})45})...

1import (2func TestWriteFile(t *testing.T) {3	file, err := os.Create("test.txt")4	if err != nil {5		fmt.Println(err)6	}7	defer file.Close()8	file.WriteString("Hello World")9}10import (11func TestReadFile(t *testing.T) {12	data, err := ioutil.ReadFile("test.txt")13	if err != nil {14		fmt.Println(err)15	}16	fmt.Println(string(data))17}18import (19func TestRemoveFile(t *testing.T) {20	err := os.Remove("test.txt")21	if err != nil {22		fmt.Println(err)23	}24	fmt.Println("File Removed")25}26import (27func TestRemoveAll(t *testing.T) {28	err := os.RemoveAll("test.txt")29	if err != nil {30		fmt.Println(err)31	}32	fmt.Println("File Removed")33}34import (35func TestRenameFile(t *testing.T) {36	err := os.Rename("test.txt", "test1.txt")37	if err != nil {38		fmt.Println(err)39	}40	fmt.Println("File Renamed")41}42import (43func TestCreateDir(t *testing.T) {44	err := os.Mkdir("test", 0755)45	if err != nil {46		fmt.Println(err)47	}48	fmt.Println("Directory Created")49}50import (51func TestRemoveDir(t *testing.T) {52	err := os.Remove("test")

1func TestWriteFile(t *testing.T) {2}3func TestWriteFile(t *testing.T) {4}5func createTempFile(t *testing.T, initialData string) (filename string) {6}7func createTempFile(t *testing.T, initialData string) (filename string) {8}9func TestWriteFile(t *testing.T) {10}11func TestWriteFile(t *testing.T) {12}

1import (2func main() {3	f, err := os.Create("test.txt")4	if err != nil {5		fmt.Println("Error creating file:", err)6	}7	defer f.Close()8	_, err = f.Write([]byte("Hello World!"))9	if err != nil {10		fmt.Println("Error writing to file:", err)11	}12	err = f.Sync()13	if err != nil {14		fmt.Println("Error saving file:", err)15	}16	data, err := ioutil.ReadFile("test.txt")17	if err != nil {18		fmt.Println("Error reading file:", err)19	}20	fmt.Println("Contents of file:", string(data))21}22import (23func main() {24	f, err := os.Create("test.txt")25	if err != nil {26		fmt.Println("Error creating file:", err)27	}28	defer f.Close()29	_, err = f.WriteString("Hello World!")30	if err != nil {31		fmt.Println("Error writing to file:", err)32	}33	err = f.Sync()34	if err != nil {35		fmt.Println("Error saving file:", err)36	}37	data, err := ioutil.ReadFile("test.txt")38	if err != nil {39		fmt.Println("Error reading file:", err)40	}41	fmt.Println("Contents of file:", string(data))42}43import (44func main() {45	f, err := os.Create("test.txt")46	if err != nil {47		fmt.Println("Error creating file:", err)48	}49	defer f.Close()

1import (2func main() {3	file, err := os.Open("1.txt")4	if err != nil {5		fmt.Println(err)6	}7	defer file.Close()8	text, err := ioutil.ReadFile("1.txt")9	if err != nil {10		fmt.Println(err)11	}12	newFile, err := os.Create("2.txt")13	if err != nil {14		fmt.Println(err)15	}16	defer newFile.Close()17	writer := bufio.NewWriter(newFile)18	defer writer.Flush()19	lines := strings.Split(string(text), "20	for _, line := range lines {21		fmt.Fprintln(writer, line)22	}23	fmt.Println("Done writing to file")24}

1import (2func main() {3    s := integration_test.Integration_test{}4    s.WriteFile("test.txt", "Hello World!")5    fmt.Println("File written successfully")6}7import (8func main() {9    s := integration_test.Integration_test{}10    text, err := s.ReadFile("test.txt")11    if err != nil {12        fmt.Println(err)13    }14    fmt.Println("File contents:", text)15}16import (17func main() {18    s := integration_test.Integration_test{}19    s.CreateDirectory("testdir")20    fmt.Println("Directory created successfully")21}