Restructure project

internal/env/env_test.go

@@ -0,0 +1,56 @@
+package env
+
+import (
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPortParser(t *testing.T) {
+	key := "PORT"
+	var err error
+	defer func() {
+		os.Unsetenv(key)
+	}()
+
+	os.Setenv(key, "1024")
+	_, err = Parse()
+	assert.Equal(t, err, nil, "Parsing should pass")
+
+	os.Setenv(key, "-12")
+	_, err = Parse()
+	assert.Equal(t, err.Error(), "Key: 'Config.Port' Error:Field validation for 'Port' failed on the 'min' tag", "Validation should fail")
+
+	os.Setenv(key, "60000")
+	_, err = Parse()
+	assert.Equal(t, err.Error(), "Key: 'Config.Port' Error:Field validation for 'Port' failed on the 'max' tag", "Validation should fail")
+
+	os.Setenv(key, "abc")
+	_, err = Parse()
+	assert.Equal(t, err.Error(), "env: parse error on field \"Port\" of type \"int\": strconv.ParseInt: parsing \"abc\": invalid syntax", "Parsing should fail")
+}
+
+func TestTimeZoneParser(t *testing.T) {
+	key := "TZ"
+	var err error
+	defer func() {
+		os.Unsetenv(key)
+	}()
+
+	os.Setenv(key, "Europe/Berlin")
+	_, err = Parse()
+	assert.Equal(t, err, nil, "Parsing should pass")
+
+	os.Setenv(key, "Etc/UTC")
+	_, err = Parse()
+	assert.Equal(t, err, nil, "Parsing should pass")
+
+	os.Setenv(key, "abc")
+	_, err = Parse()
+	assert.Equal(t, err.Error(), "Key: 'Config.TimeZone' Error:Field validation for 'TimeZone' failed on the 'timezone' tag", "Validation should fail")
+
+	os.Setenv(key, "-1")
+	_, err = Parse()
+	assert.Equal(t, err.Error(), "Key: 'Config.TimeZone' Error:Field validation for 'TimeZone' failed on the 'timezone' tag", "Validation should fail")
+}