feat: 接入管理 Secret 凭据与连接刷新

internal/database/application/credentials_test.go

@@ -0,0 +1,70 @@
+/*
+Copyright 2026.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package application
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"testing"
+)
+
+const testUsername = "test-user"
+
+func TestCredentialsRejectEmptyValues(t *testing.T) {
+	for _, values := range [][2]string{
+		{"", "test-password"},
+		{testUsername, ""},
+		{"", ""},
+	} {
+		if _, err := NewCredentials(values[0], values[1]); err != ErrCredentialsInvalid {
+			t.Fatal("empty credential was accepted")
+		}
+	}
+}
+
+func TestCredentialAndServiceFormattingIsRedacted(t *testing.T) {
+	const canary = "SECRET-CANARY-never-log-this"
+	credentials, err := NewCredentials(canary, canary)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if credentials.Username() != canary || credentials.Password() != canary {
+		t.Fatal("explicit credential access changed values")
+	}
+
+	service, err := NewInstanceService(&sourceStub{credentials: credentials}, &connectorStub{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(service.Close)
+
+	encoded, err := json.Marshal(credentials)
+	if err != nil {
+		t.Fatal(err)
+	}
+	outputs := []string{
+		string(encoded),
+		fmt.Sprintf("%v %+v %#v", credentials, credentials, credentials),
+		fmt.Sprintf("%v %+v %#v", service, service, service),
+	}
+	for _, output := range outputs {
+		if strings.Contains(output, canary) {
+			t.Fatal("formatting leaked credential data")
+		}
+	}
+}