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package homedir
import (
"os"
"os/user"
"path/filepath"
"testing"
)
func patchEnv(key, value string) func() {
bck := os.Getenv(key)
deferFunc := func() {
os.Setenv(key, bck)
}
os.Setenv(key, value)
return deferFunc
}
func BenchmarkDir(b *testing.B) {
// We do this for any "warmups"
for i := 0; i < 10; i++ {
Dir()
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
Dir()
}
}
func TestDir(t *testing.T) {
// NOTE: This test is not portable. If user.Current() worked
// everywhere, we wouldn't need our package in the first place.
u, err := user.Current()
if err != nil {
t.Fatalf("err: %s", err)
}
dir, err := Dir()
if err != nil {
t.Fatalf("err: %s", err)
}
if u.HomeDir != dir {
t.Fatalf("%#v != %#v", u.HomeDir, dir)
}
}
func TestExpand(t *testing.T) {
u, err := user.Current()
if err != nil {
t.Fatalf("err: %s", err)
}
cases := []struct {
Input string
Output string
Err bool
}{
{
"/foo",
"/foo",
false,
},
{
"~/foo",
filepath.Join(u.HomeDir, "foo"),
false,
},
{
"",
"",
false,
},
{
"~",
u.HomeDir,
false,
},
{
"~foo/foo",
"",
true,
},
}
for _, tc := range cases {
actual, err := Expand(tc.Input)
if (err != nil) != tc.Err {
t.Fatalf("Input: %#v\n\nErr: %s", tc.Input, err)
}
if actual != tc.Output {
t.Fatalf("Input: %#v\n\nOutput: %#v", tc.Input, actual)
}
}
DisableCache = true
defer func() { DisableCache = false }()
defer patchEnv("HOME", "/custom/path/")()
expected := filepath.Join("/", "custom", "path", "foo/bar")
actual, err := Expand("~/foo/bar")
if err != nil {
t.Errorf("No error is expected, got: %v", err)
} else if actual != expected {
t.Errorf("Expected: %v; actual: %v", expected, actual)
}
}
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