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/
env_test.go
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/
env_test.go
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package env_test
import (
"bytes"
"fmt"
"net/url"
"os"
"strconv"
"testing"
"time"
"github.com/TV4/env"
)
func TestMapClient(t *testing.T) {
e := env.MapClient(env.Map{
"FOO": "bar",
"BAR": "123",
"BAZ": "true",
})
if got, want := e.String("FOO", ""), "bar"; got != want {
t.Fatalf(`String("FOO", "") = %q, want %q`, got, want)
}
if got, want := e.Int("BAR", 0), 123; got != want {
t.Fatalf(`Int("BAR", 0) = %d, want %d`, got, want)
}
if !e.Bool("BAZ", false) {
t.Fatalf(`!Bool("BAZ", false)`)
}
}
func TestBase64Bytes(t *testing.T) {
key := "BASE64_BYTES"
for _, tt := range []struct {
env string
fallback []byte
want []byte
}{
{"", []byte("foo"), []byte("foo")},
{"invalid", []byte("foo"), []byte("foo")},
{"YmFyIGJheg==", []byte("foo"), []byte("bar baz")},
{"cXV4CnF1dXg=", []byte("foo"), []byte("qux\nquux")},
} {
os.Setenv(key, tt.env)
if got := env.Base64Bytes(key, tt.fallback); !bytes.Equal(got, tt.want) {
t.Errorf(`Base64Bytes(%q, %q) = %q, want %q`, key, tt.fallback, got, tt.want)
}
}
}
func TestBool(t *testing.T) {
tests := []struct {
env string
in bool
out bool
}{
{"t", false, true},
{"1", false, true},
{"", false, false},
{"FALSE", true, false},
}
for _, tt := range tests {
os.Setenv("BOOL", tt.env)
if got := env.Bool("BOOL", tt.in); got != tt.out {
t.Errorf(`Bool("BOOL", %v) = %v, want %v`, tt.in, got, tt.out)
}
}
}
func TestBoolDefault(t *testing.T) {
in, out := true, true
os.Clearenv()
if got := env.Bool("BOOL_DEFAULT", in); got != out {
t.Errorf(`Bool("BOOL_DEFAULT", %v) = %v, want %v`, in, got, out)
}
}
func ExampleBool() {
os.Setenv("BOOL", "t")
fmt.Println(env.Bool("BOOL", false))
// Output: true
}
func TestBytes(t *testing.T) {
in, out := []byte("baz"), []byte("bar")
os.Setenv("BYTES", string(out))
if got := env.Bytes("BYTES", in); !bytes.Equal(got, out) {
t.Errorf(`Bytes("BYTES", "%s") = %s, want %s`, in, got, out)
}
}
func TestBytesDefault(t *testing.T) {
in, out := []byte("baz"), []byte("baz")
os.Clearenv()
if got := env.Bytes("BYTES_DEFAULT", in); !bytes.Equal(got, out) {
t.Errorf(`Bytes("BYTES_DEFAULT", "%s") = %s, want %s`, in, got, out)
}
}
func ExampleBytes() {
os.Setenv("BYTES", "foo")
fmt.Printf("%s", env.Bytes("BYTES", nil))
// Output: foo
}
func TestDuration(t *testing.T) {
in, fallback, out := "5s", 10*time.Minute, 5*time.Second
os.Setenv("DURATION", in)
if got := env.Duration("DURATION", fallback); got != out {
t.Errorf(`Duration("DURATION", %#v) = %v, want %v`, in, got, out)
}
}
func TestDurationDefault(t *testing.T) {
fallback := 123 * time.Second
os.Clearenv()
if got := env.Duration("DURATION_DEFAULT", fallback); got != fallback {
t.Errorf(`Duration("DURATION_DEFAULT", %#v) = %v, want %v`, fallback, got, fallback)
}
}
func ExampleDuration() {
os.Setenv("DURATION", "23s")
fmt.Printf("%s", env.Duration("DURATION", 0))
// Output: 23s
}
func TestFloat64(t *testing.T) {
in, out := float64(1.1), float64(2.5)
os.Setenv("FLOAT64", "2.5")
if got := env.Float64("FLOAT64", in); got != out {
t.Errorf(`Float64("FLOAT64", %v) = %v, want %v`, in, got, out)
}
}
func TestFloat64Default(t *testing.T) {
in, out := float64(5.2), float64(5.2)
os.Clearenv()
if got := env.Float64("FLOAT64_DEFAULT", in); got != out {
t.Errorf(`Float64("FLOAT64_DEFAULT", %v) = %v, want %v`, in, got, out)
}
}
func ExampleFloat64() {
os.Setenv("FLOAT64", "1.23")
fmt.Println(env.Float64("FLOAT64", 0))
// Output: 1.23
}
func TestInt(t *testing.T) {
in, out := 1, 2
os.Setenv("INT", strconv.Itoa(out))
if got := env.Int("INT", in); got != out {
t.Errorf(`Int("INT", %v) = %v, want %v`, in, got, out)
}
}
func TestIntDefault(t *testing.T) {
in, out := 3, 3
os.Clearenv()
if got := env.Int("INT_DEFAULT", in); got != out {
t.Errorf(`Int("INT_DEFAULT", %v) = %v, want %v`, in, got, out)
}
}
func ExampleInt() {
os.Setenv("INT", "345")
fmt.Println(env.Int("INT", 0))
// Output: 345
}
func TestString(t *testing.T) {
in, out := "baz", "bar"
os.Setenv("STRING", out)
if got := env.String("STRING", in); got != out {
t.Errorf(`String("STRING", "%v") = %v, want %v`, in, got, out)
}
}
func TestStringDefault(t *testing.T) {
in, out := "baz", "baz"
os.Clearenv()
if got := env.String("STRING_DEFAULT", in); got != out {
t.Errorf(`String("STRING_DEFAULT", "%v") = %v, want %v`, in, got, out)
}
}
func ExampleString() {
os.Setenv("STRING", "foo bar")
fmt.Println(env.String("STRING", ""))
// Output: foo bar
}
func TestStrings(t *testing.T) {
eqStrings := func(a, b []string) bool {
if len(a) != len(b) {
return false
}
for i := range a {
if a[i] != b[i] {
return false
}
}
return true
}
tests := []struct {
env string
fallback []string
want []string
}{
{"foo,bar,baz", []string{}, []string{"foo", "bar", "baz"}},
{"", []string{"sit", "amet"}, []string{"sit", "amet"}},
}
for _, tt := range tests {
os.Setenv("STRINGS", tt.env)
if got := env.Strings("STRINGS", tt.fallback); !eqStrings(got, tt.want) {
t.Errorf(`String("STRINGS", %q) = %q, want %q`, tt.fallback, got, tt.want)
}
}
}
func TestStrings_differentSeparator(t *testing.T) {
eqStrings := func(a, b []string) bool {
if len(a) != len(b) {
return false
}
for i := range a {
if a[i] != b[i] {
return false
}
}
return true
}
tests := []struct {
env string
sep string
fallback []string
want []string
}{
{"foo-bar-baz", "-", []string{}, []string{"foo", "bar", "baz"}},
{"foo/bar/baz", "/", []string{}, []string{"foo", "bar", "baz"}},
{"", "/", []string{"sit", "amet"}, []string{"sit", "amet"}},
}
for _, tt := range tests {
os.Setenv("STRINGS", tt.env)
if got := env.Strings("STRINGS", tt.fallback, tt.sep); !eqStrings(got, tt.want) {
t.Errorf(`String("STRINGS", %q, %q) = %q, want %q`, tt.fallback, tt.sep, got, tt.want)
}
}
}
func ExampleStrings() {
os.Setenv("STRINGS", "foo,bar,baz")
fmt.Println(env.Strings("STRINGS", []string{}))
// Output: [foo bar baz]
}
func TestURL(t *testing.T) {
in, out := &url.URL{Host: "example.com"}, &url.URL{Host: "example.com"}
os.Setenv("URL", out.String())
if got := env.URL("URL", in); got.String() != out.String() {
t.Errorf(`URL("URL", "%v") = %v, want %v`, in, got, out)
}
}
func TestURLDefault(t *testing.T) {
in, out := &url.URL{Host: "example.com"}, &url.URL{Host: "example.com"}
os.Clearenv()
if got := env.URL("URL_DEFAULT", in); got.String() != out.String() {
t.Errorf(`URL("URL_DEFAULT", "%v") = %v, want %v`, in, got, out)
}
}
func ExampleURL() {
os.Setenv("URL", "http://example.com/foo")
fmt.Println(env.URL("URL", &url.URL{Host: "fallback"}).String())
// Output: http://example.com/foo
}