feat(kube): kube app auto update backend (#5547)

api/filesystem/write_test.go

@@ -0,0 +1,48 @@
+package filesystem
+
+import (
+	"io/ioutil"
+	"path"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_WriteFile_CanStoreContentInANewFile(t *testing.T) {
+	tmpDir := t.TempDir()
+	tmpFilePath := path.Join(tmpDir, "dummy")
+
+	content := []byte("content")
+	err := WriteToFile(tmpFilePath, content)
+	assert.NoError(t, err)
+
+	fileContent, _ := ioutil.ReadFile(tmpFilePath)
+	assert.Equal(t, content, fileContent)
+}
+
+func Test_WriteFile_CanOverwriteExistingFile(t *testing.T) {
+	tmpDir := t.TempDir()
+	tmpFilePath := path.Join(tmpDir, "dummy")
+
+	err := WriteToFile(tmpFilePath, []byte("content"))
+	assert.NoError(t, err)
+
+	content := []byte("new content")
+	err = WriteToFile(tmpFilePath, content)
+	assert.NoError(t, err)
+
+	fileContent, _ := ioutil.ReadFile(tmpFilePath)
+	assert.Equal(t, content, fileContent)
+}
+
+func Test_WriteFile_CanWriteANestedPath(t *testing.T) {
+	tmpDir := t.TempDir()
+	tmpFilePath := path.Join(tmpDir, "dir", "sub-dir", "dummy")
+
+	content := []byte("content")
+	err := WriteToFile(tmpFilePath, content)
+	assert.NoError(t, err)
+
+	fileContent, _ := ioutil.ReadFile(tmpFilePath)
+	assert.Equal(t, content, fileContent)
+}