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Merge pull request #8 from Jagerente/7-slice-parsers
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#7 add bytes and strings slice parsers;
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Jagerente authored Jul 2, 2024
2 parents 24420c4 + a384a43 commit 32f5622
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Showing 4 changed files with 37 additions and 5 deletions.
3 changes: 3 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,8 @@ type AppConfig struct {
Float32Field float32 `env:"FLOAT32_FIELD"`
Float64Field float64 `env:"FLOAT64_FIELD"`
TimeDurationField time.Duration `env:"TIME_DURATION_FIELD"`
ByteSliceField []byte `env:"BYTE_SLICE_FIELD"`
StringSliceField []string `env:"STRING_SLICE_FIELD" default:"string1,string2,string3"`
EmptyField string `env:"EMPTY_FIELD,omitempty"`
WithDefaultField string `env:"WITH_DEFAULT_FIELD" default:"ave"`
}
Expand Down Expand Up @@ -104,6 +106,7 @@ func main() {
- int, int8, int16, int32, int64
- uint, uint8, uint16, uint32, uint64
- float32, float64
- slices: bytes, strings

### .env file

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2 changes: 2 additions & 0 deletions config.go
Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,8 @@ func (c *ConfigManager) UseCustomKeyTag(tag string) *ConfigManager {
// Float32Field float32 `env:"FLOAT32_FIELD"`
// Float64Field float64 `env:"FLOAT64_FIELD"`
// TimeDurationField time.Duration `env:"TIME_DURATION_FIELD"`
// ByteSliceField []byte `env:"BYTE_SLICE_FIELD"`
// StringSliceField []string `env:"STRING_SLICE_FIELD"`
// EmptyField string `env:"EMPTY_FIELD,omitempty"`
// WithDefaultField string `env:"WITH_DEFAULT_FIELD" default:"ave"`
// }
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30 changes: 25 additions & 5 deletions config_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,9 @@ func Test_UnmarshalFromEnv(t *testing.T) {

TimeField time.Duration `env:"TIME_FIELD"`

ByteSliceField []byte `env:"BYTE_SLICE_FIELD"`
StringSliceField []string `env:"STRING_SLICE_FIELD"`

EmptyField string `env:"EMPTY_FIELD,omitempty"`
}

Expand All @@ -55,6 +58,8 @@ func Test_UnmarshalFromEnv(t *testing.T) {
_ = os.Setenv("FLOAT64_FIELD", "3.14159265359")

_ = os.Setenv("TIME_FIELD", "5s")
_ = os.Setenv("BYTE_SLICE_FIELD", "test")
_ = os.Setenv("STRING_SLICE_FIELD", "test1,test2,test3")

cfg := new(TestConfig)
cfgManager := NewDefault()
Expand All @@ -76,6 +81,8 @@ func Test_UnmarshalFromEnv(t *testing.T) {
assert.Equal(t, float32(3.14), cfg.Float32Field)
assert.Equal(t, float64(3.14159265359), cfg.Float64Field)
assert.Equal(t, 5*time.Second, cfg.TimeField)
assert.Equal(t, []byte("test"), cfg.ByteSliceField)
assert.Equal(t, []string{"test1", "test2", "test3"}, cfg.StringSliceField)
}

func Test_UnmarshalFromDotEnv(t *testing.T) {
Expand All @@ -94,17 +101,20 @@ UINT32_FIELD=4294967295
UINT64_FIELD=18446744073709551615
FLOAT32_FIELD=3.14
FLOAT64_FIELD=3.14159265359
TIME_FIELD=5s`
TIME_FIELD=5s
BYTE_SLICE_FIELD=test
STRING_SLICE_FIELD=test1,test2,test3`
)

tmpFile, _ := os.CreateTemp(".", "test_env_*.env")
defer func() { _ = tmpFile.Close() }()
envFilePath := tmpFile.Name()
defer func() {
_ = tmpFile.Close()
_ = os.Remove(envFilePath)
}()

_, _ = tmpFile.WriteString(envContent)

envFilePath := tmpFile.Name()
defer func() { _ = os.Remove(envFilePath) }()

type TestConfig struct {
BoolField bool `env:"BOOL_FIELD"`
StringField string `env:"STRING_FIELD"`
Expand All @@ -121,6 +131,8 @@ TIME_FIELD=5s`
Float32Field float32 `env:"FLOAT32_FIELD"`
Float64Field float64 `env:"FLOAT64_FIELD"`
TimeDurationField time.Duration `env:"TIME_FIELD"`
ByteSliceField []byte `env:"BYTE_SLICE_FIELD"`
StringSliceField []string `env:"STRING_SLICE_FIELD"`
}

dotEnvProvider, err := values.NewDotEnvProvider(envFilePath)
Expand Down Expand Up @@ -148,6 +160,8 @@ TIME_FIELD=5s`
assert.Equal(t, float32(3.14), cfg.Float32Field)
assert.Equal(t, float64(3.14159265359), cfg.Float64Field)
assert.Equal(t, 5*time.Second, cfg.TimeDurationField)
assert.Equal(t, []byte("test"), cfg.ByteSliceField)
assert.Equal(t, []string{"test1", "test2", "test3"}, cfg.StringSliceField)
}

func Test_EmptyField(t *testing.T) {
Expand Down Expand Up @@ -218,6 +232,8 @@ func Test_OmitEmpty(t *testing.T) {
Float32Field float32 `env:"FLOAT32_FIELD,omitempty"`
Float64Field float64 `env:"FLOAT64_FIELD,omitempty"`
TimeDurationField time.Duration `env:"TIME_FIELD,omitempty"`
ByteSliceField []byte `env:"BYTE_SLICE_FIELD,omitempty"`
StringSliceField []string `env:"STRING_SLICE_FIELD,omitempty"`
}

_ = os.Setenv("BOOL_FIELD", "")
Expand All @@ -235,6 +251,8 @@ func Test_OmitEmpty(t *testing.T) {
_ = os.Setenv("FLOAT32_FIELD", "")
_ = os.Setenv("FLOAT64_FIELD", "")
_ = os.Setenv("TIME_FIELD", "")
_ = os.Setenv("BYTE_SLICE_FIELD", "")
_ = os.Setenv("STRING_SLICE_FIELD", "")

cfg := new(TestConfig)
cfgManager := NewDefault()
Expand All @@ -256,6 +274,8 @@ func Test_OmitEmpty(t *testing.T) {
assert.Equal(t, float32(0), cfg.Float32Field)
assert.Equal(t, float64(0), cfg.Float64Field)
assert.Equal(t, time.Duration(0), cfg.TimeDurationField)
assert.Equal(t, []byte(nil), cfg.ByteSliceField)
assert.Equal(t, []string(nil), cfg.StringSliceField)
}

func Test_DefaultValues(t *testing.T) {
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7 changes: 7 additions & 0 deletions pkg/parsers/default.go
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ package parsers
import (
"reflect"
"strconv"
"strings"
"time"
)

Expand All @@ -11,6 +12,12 @@ var (
reflect.TypeOf(time.Duration(83)): func(v string) (interface{}, error) {
return time.ParseDuration(v)
},
reflect.TypeOf([]byte{}): func(v string) (interface{}, error) {
return []byte(v), nil
},
reflect.TypeOf([]string{}): func(v string) (interface{}, error) {
return strings.Split(v, ","), nil
},
}

defaultKindParsers = map[reflect.Kind]func(v string) (interface{}, error){
Expand Down

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