Restructured project

- backend moved to backend directory
- added and initialized frontend with vue
- moved infrastructure files to infra directory

backend/src/config/config_test.go

@@ -0,0 +1,106 @@
+package config_test
+
+import (
+	"FamilyHub/src/config"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type EnvFixture struct {
+	backup map[string]string
+}
+
+func NewEnvFixture() *EnvFixture {
+	env := make(map[string]string)
+
+	for _, e := range os.Environ() {
+		pair := split(e)
+		env[pair[0]] = pair[1]
+	}
+
+	// полностью чистое окружение
+	os.Clearenv()
+	return &EnvFixture{backup: env}
+}
+
+func (e *EnvFixture) Restore() {
+	os.Clearenv()
+	for key, val := range e.backup {
+		_ = os.Setenv(key, val)
+	}
+}
+
+func split(s string) [2]string {
+	var p [2]string
+	for i := 0; i < len(s); i++ {
+		if s[i] == '=' {
+			p[0] = s[:i]
+			p[1] = s[i+1:]
+			return p
+		}
+	}
+	return p
+}
+
+func MustSet(env map[string]string) {
+	for k, v := range env {
+		_ = os.Setenv(k, v)
+	}
+}
+
+func MustUnset(keys ...string) {
+	for _, k := range keys {
+		_ = os.Unsetenv(k)
+	}
+}
+
+func TestConfigLoad_Table(t *testing.T) {
+	env := NewEnvFixture()
+	defer env.Restore()
+
+	tests := []struct {
+		name  string
+		env   map[string]string
+		want  config.Config
+		error bool
+	}{
+		{
+			name: "ok - values set",
+			env:  map[string]string{"BOT_TOKEN": "abc", "DB_PATH": "db.sqlite"},
+			want: config.Config{BotToken: "abc", DBConnectionString: "db.sqlite"},
+		},
+		{
+			name:  "fail - missing token",
+			env:   map[string]string{}, // ничего нет
+			error: true,
+		},
+		{
+			name:  "default DB path applied",
+			env:   map[string]string{"BOT_TOKEN": "xyz"},
+			error: true,
+		},
+	}
+
+	for _, tc := range tests {
+		testCase := tc
+		t.Run(testCase.name, func(t *testing.T) {
+			t.Parallel()
+
+			os.Clearenv()
+			MustSet(testCase.env)
+
+			cfg, err := config.Load()
+
+			if testCase.error {
+				assert.Error(t, err)
+				return
+			}
+
+			assert.NoError(t, err)
+			assert.Equal(t, testCase.want.BotToken, cfg.BotToken)
+			assert.Equal(t, testCase.want.DBConnectionString, cfg.DBConnectionString)
+		})
+	}
+}