Start api directory, which will become a module.

api/filesys/fsondisk_test.go

@@ -0,0 +1,165 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package filesys_test
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"reflect"
+	"testing"
+
+	. "sigs.k8s.io/kustomize/v3/api/filesys"
+)
+
+func makeTestDir(t *testing.T) (FileSystem, string) {
+	fSys := MakeFsOnDisk()
+	td, err := ioutil.TempDir("", "kustomize_testing_dir")
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	testDir, err := filepath.EvalSymlinks(td)
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	if !fSys.Exists(testDir) {
+		t.Fatalf("expected existence")
+	}
+	if !fSys.IsDir(testDir) {
+		t.Fatalf("expected directory")
+	}
+	return fSys, testDir
+}
+
+func TestCleanedAbs_1(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	d, f, err := fSys.CleanedAbs("")
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d.String() != wd {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+}
+
+func TestCleanedAbs_2(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	d, f, err := fSys.CleanedAbs("/")
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d != "/" {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+}
+
+func TestCleanedAbs_3(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	err := fSys.WriteFile(
+		filepath.Join(testDir, "foo"), []byte(`foo`))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+
+	d, f, err := fSys.CleanedAbs(filepath.Join(testDir, "foo"))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d.String() != testDir {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "foo" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+}
+
+func TestCleanedAbs_4(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	err := fSys.MkdirAll(filepath.Join(testDir, "d1", "d2"))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	err = fSys.WriteFile(
+		filepath.Join(testDir, "d1", "d2", "bar"),
+		[]byte(`bar`))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+
+	d, f, err := fSys.CleanedAbs(
+		filepath.Join(testDir, "d1", "d2"))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d.String() != filepath.Join(testDir, "d1", "d2") {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+
+	d, f, err = fSys.CleanedAbs(
+		filepath.Join(testDir, "d1", "d2", "bar"))
+	if err != nil {
+		t.Fatalf("unexpected err=%v", err)
+	}
+	if d.String() != filepath.Join(testDir, "d1", "d2") {
+		t.Fatalf("unexpected d=%s", d)
+	}
+	if f != "bar" {
+		t.Fatalf("unexpected f=%s", f)
+	}
+}
+
+func TestReadFilesRealFS(t *testing.T) {
+	fSys, testDir := makeTestDir(t)
+	defer os.RemoveAll(testDir)
+
+	err := fSys.WriteFile(path.Join(testDir, "foo"), []byte(`foo`))
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	if !fSys.Exists(path.Join(testDir, "foo")) {
+		t.Fatalf("expected foo")
+	}
+	if fSys.IsDir(path.Join(testDir, "foo")) {
+		t.Fatalf("expected foo not to be a directory")
+	}
+
+	err = fSys.WriteFile(path.Join(testDir, "bar"), []byte(`bar`))
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+
+	files, err := fSys.Glob(path.Join("testDir", "*"))
+	expected := []string{
+		path.Join(testDir, "bar"),
+		path.Join(testDir, "foo"),
+	}
+	if err != nil {
+		t.Fatalf("expected no error")
+	}
+	if reflect.DeepEqual(files, expected) {
+		t.Fatalf("incorrect files found by glob: %v", files)
+	}
+}