Improve config package names and reduce API exposure.

api/konfig/plugins_test.go

@@ -0,0 +1,126 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package konfig
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"sigs.k8s.io/kustomize/api/filesys"
+	"sigs.k8s.io/kustomize/api/types"
+)
+
+func TestDefaultAbsPluginHome_NoKustomizePluginHomeEnv(t *testing.T) {
+	fSys := filesys.MakeFsInMemory()
+	keep, isSet := os.LookupEnv(KustomizePluginHomeEnv)
+	if isSet {
+		_ = os.Unsetenv(KustomizePluginHomeEnv)
+	}
+	_, err := DefaultAbsPluginHome(fSys)
+	if isSet {
+		os.Setenv(KustomizePluginHomeEnv, keep)
+	}
+	if err == nil {
+		t.Fatalf("expected err")
+	}
+	if !types.IsErrUnableToFind(err) {
+		t.Fatalf("unexpected err: %v", err)
+	}
+}
+
+func TestDefaultAbsPluginHome_WithKustomizePluginHomeEnv(t *testing.T) {
+	fSys := filesys.MakeFsInMemory()
+	keep, isSet := os.LookupEnv(KustomizePluginHomeEnv)
+	if !isSet {
+		keep = "whatever"
+		os.Setenv(KustomizePluginHomeEnv, keep)
+	}
+	fSys.Mkdir(keep)
+	h, err := DefaultAbsPluginHome(fSys)
+	if !isSet {
+		_ = os.Unsetenv(KustomizePluginHomeEnv)
+	}
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if h != keep {
+		t.Fatalf("unexpected config dir: %s", h)
+	}
+}
+
+func TestDefaultAbsPluginHomeWithXdg(t *testing.T) {
+	fSys := filesys.MakeFsInMemory()
+	keep, isSet := os.LookupEnv(XdgConfigHomeEnv)
+	if !isSet {
+		keep = "whatever"
+		os.Setenv(XdgConfigHomeEnv, keep)
+	}
+	configDir := filepath.Join(keep, ProgramName, RelPluginHome)
+	fSys.Mkdir(configDir)
+	h, err := DefaultAbsPluginHome(fSys)
+	if !isSet {
+		_ = os.Unsetenv(XdgConfigHomeEnv)
+	}
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if h != configDir {
+		t.Fatalf("unexpected config dir: %s", h)
+	}
+}
+
+func TestDefaultAbsPluginHomeNoConfig(t *testing.T) {
+	fSys := filesys.MakeFsInMemory()
+	keep, isSet := os.LookupEnv(XdgConfigHomeEnv)
+	if isSet {
+		_ = os.Unsetenv(XdgConfigHomeEnv)
+	}
+	_, err := DefaultAbsPluginHome(fSys)
+	if isSet {
+		os.Setenv(XdgConfigHomeEnv, keep)
+	}
+	if err == nil {
+		t.Fatalf("expected err")
+	}
+	if !types.IsErrUnableToFind(err) {
+		t.Fatalf("unexpected err: %v", err)
+	}
+}
+
+func TestDefaultAbsPluginHomeNoXdgWithDotConfig(t *testing.T) {
+	fSys := filesys.MakeFsInMemory()
+	configDir := filepath.Join(
+		HomeDir(), XdgConfigHomeEnvDefault, ProgramName, RelPluginHome)
+	fSys.Mkdir(configDir)
+	keep, isSet := os.LookupEnv(XdgConfigHomeEnv)
+	if isSet {
+		_ = os.Unsetenv(XdgConfigHomeEnv)
+	}
+	s, _ := DefaultAbsPluginHome(fSys)
+	if isSet {
+		os.Setenv(XdgConfigHomeEnv, keep)
+	}
+	if s != configDir {
+		t.Fatalf("unexpected config dir: %s", s)
+	}
+}
+
+func TestDefaultAbsPluginHomeNoXdgJustHomeDir(t *testing.T) {
+	fSys := filesys.MakeFsInMemory()
+	configDir := filepath.Join(
+		HomeDir(), ProgramName, RelPluginHome)
+	fSys.Mkdir(configDir)
+	keep, isSet := os.LookupEnv(XdgConfigHomeEnv)
+	if isSet {
+		_ = os.Unsetenv(XdgConfigHomeEnv)
+	}
+	s, _ := DefaultAbsPluginHome(fSys)
+	if isSet {
+		os.Setenv(XdgConfigHomeEnv, keep)
+	}
+	if s != configDir {
+		t.Fatalf("unexpected config dir: %s", s)
+	}
+}