146 lines
3.4 KiB
Go
146 lines
3.4 KiB
Go
package env
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import (
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"encoding/json"
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"os"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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)
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type subStruct struct {
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MyParam int
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}
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type mapEntry struct {
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MyValue string
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MyStruct subStruct
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}
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type myDuration time.Duration
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func (d *myDuration) UnmarshalJSON(b []byte) error {
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var in string
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if err := json.Unmarshal(b, &in); err != nil {
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return err
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}
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du, err := time.ParseDuration(in)
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if err != nil {
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return err
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}
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*d = myDuration(du)
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return nil
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}
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// UnmarshalEnv implements envUnmarshaler.
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func (d *myDuration) UnmarshalEnv(s string) error {
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return d.UnmarshalJSON([]byte(`"` + s + `"`))
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}
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type mySubStruct struct {
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URL string
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Username string
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Password string
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}
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type testStruct struct {
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MyString string
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MyInt int
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MyFloat float64
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MyBool bool
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MyDuration myDuration
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MyMap map[string]*mapEntry
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MySlice []string
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MySliceEmpty []string
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MySliceSubStruct []mySubStruct
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MySliceSubStructEmpty []mySubStruct
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}
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func TestLoad(t *testing.T) {
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os.Setenv("MYPREFIX_MYSTRING", "testcontent")
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defer os.Unsetenv("MYPREFIX_MYSTRING")
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os.Setenv("MYPREFIX_MYINT", "123")
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defer os.Unsetenv("MYPREFIX_MYINT")
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os.Setenv("MYPREFIX_MYFLOAT", "15.2")
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defer os.Unsetenv("MYPREFIX_MYFLOAT")
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os.Setenv("MYPREFIX_MYBOOL", "yes")
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defer os.Unsetenv("MYPREFIX_MYBOOL")
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os.Setenv("MYPREFIX_MYDURATION", "22s")
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defer os.Unsetenv("MYPREFIX_MYDURATION")
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os.Setenv("MYPREFIX_MYMAP_MYKEY", "")
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defer os.Unsetenv("MYPREFIX_MYMAP_MYKEY")
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os.Setenv("MYPREFIX_MYMAP_MYKEY2_MYVALUE", "asd")
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defer os.Unsetenv("MYPREFIX_MYMAP_MYKEY2_MYVALUE")
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os.Setenv("MYPREFIX_MYMAP_MYKEY2_MYSTRUCT_MYPARAM", "456")
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defer os.Unsetenv("MYPREFIX_MYMAP_MYKEY2_MYSTRUCT_MYPARAM")
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os.Setenv("MYPREFIX_MYSLICE", "val1,val2")
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defer os.Unsetenv("MYPREFIX_MYSLICE")
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os.Setenv("MYPREFIX_MYSLICEEMPTY", "")
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defer os.Unsetenv("MYPREFIX_MYSLICEEMPTY")
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os.Setenv("MYPREFIX_MYSLICESUBSTRUCT_0_URL", "url1")
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defer os.Unsetenv("MYPREFIX_MYSLICESUBSTRUCT_0_URL")
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os.Setenv("MYPREFIX_MYSLICESUBSTRUCT_0_USERNAME", "user1")
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defer os.Unsetenv("MYPREFIX_MYSLICESUBSTRUCT_0_USERNAME")
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os.Setenv("MYPREFIX_MYSLICESUBSTRUCT_0_PASSWORD", "pass1")
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defer os.Unsetenv("MYPREFIX_MYSLICESUBSTRUCT_0_PASSWORD")
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os.Setenv("MYPREFIX_MYSLICESUBSTRUCT_1_URL", "url2")
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defer os.Unsetenv("MYPREFIX_MYSLICESUBSTRUCT_1_URL")
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os.Setenv("MYPREFIX_MYSLICESUBSTRUCT_1_PASSWORD", "pass2")
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defer os.Unsetenv("MYPREFIX_MYSLICESUBSTRUCT_1_PASSWORD")
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os.Setenv("MYPREFIX_MYSLICESUBSTRUCTEMPTY", "")
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defer os.Unsetenv("MYPREFIX_MYSLICESUBSTRUCTEMPTY")
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var s testStruct
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err := Load("MYPREFIX", &s)
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require.NoError(t, err)
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require.Equal(t, "testcontent", s.MyString)
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require.Equal(t, 123, s.MyInt)
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require.Equal(t, 15.2, s.MyFloat)
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require.Equal(t, true, s.MyBool)
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require.Equal(t, 22*myDuration(time.Second), s.MyDuration)
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_, ok := s.MyMap["mykey"]
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require.Equal(t, true, ok)
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v, ok := s.MyMap["mykey2"]
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require.Equal(t, true, ok)
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require.Equal(t, "asd", v.MyValue)
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require.Equal(t, 456, v.MyStruct.MyParam)
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require.Equal(t, []string{"val1", "val2"}, s.MySlice)
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require.Equal(t, []string{}, s.MySliceEmpty)
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require.Equal(t, []mySubStruct{
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{
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URL: "url1",
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Username: "user1",
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Password: "pass1",
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},
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{
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URL: "url2",
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Password: "pass2",
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},
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}, s.MySliceSubStruct)
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require.Equal(t, []mySubStruct{}, s.MySliceSubStructEmpty)
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}
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