Initila commit

configuration/configuration_test.go

@@ -0,0 +1,72 @@
+package configuration
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func validConfiguration() Configuration {
+	return Configuration{
+		Host:     "0.0.0.0",
+		Port:     9090,
+		LogLevel: 4,
+		Shelly: ShellyConfiguration{
+			TimeoutSeconds: 10,
+			Devices: []DeviceConfiguration{
+				{Name: "office", Product: "plug_s", URL: "http://192.168.0.30", Username: "admin", Password: "secret"},
+			},
+		},
+	}
+}
+
+func TestConfigurationValidate(t *testing.T) {
+	config := validConfiguration()
+	if err := config.Validate(); err != nil {
+		t.Fatalf("Validate() returned an unexpected error: %v", err)
+	}
+}
+
+func TestConfigurationRejectsDuplicateDeviceNames(t *testing.T) {
+	config := validConfiguration()
+	config.Shelly.Devices = append(config.Shelly.Devices, config.Shelly.Devices[0])
+
+	err := config.Validate()
+	if err == nil || !strings.Contains(err.Error(), "configured more than once") {
+		t.Fatalf("Validate() error = %v, want duplicate name error", err)
+	}
+}
+
+func TestLoadAppliesTimeoutDefaultAndRejectsUnknownFields(t *testing.T) {
+	directory := t.TempDir()
+	validPath := filepath.Join(directory, "valid.yaml")
+	validYAML := []byte(`host: 0.0.0.0
+port: 9090
+logLevel: 4
+shelly:
+  devices:
+    - name: office
+      product: plug_s
+      url: http://192.168.0.30
+`)
+	if err := os.WriteFile(validPath, validYAML, 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	config, err := Load(validPath)
+	if err != nil {
+		t.Fatalf("Load() returned an unexpected error: %v", err)
+	}
+	if config.Shelly.TimeoutSeconds != defaultTimeoutSeconds {
+		t.Fatalf("TimeoutSeconds = %d, want %d", config.Shelly.TimeoutSeconds, defaultTimeoutSeconds)
+	}
+
+	invalidPath := filepath.Join(directory, "invalid.yaml")
+	if err := os.WriteFile(invalidPath, append(validYAML, []byte("unknown: true\n")...), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := Load(invalidPath); err == nil {
+		t.Fatal("Load() accepted an unknown field")
+	}
+}