test: 补路由鉴权、配置回滚与 Agent 版本兼容测试并发布 v1.5.3

internal/frp/agent_versions_compat_test.go

@@ -0,0 +1,73 @@
+package frp
+
+import (
+	"context"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+// TestAgentEndpointMissingDetection 锁定旧 Agent 的 404 / 405 兼容提示，且不把其它错误误判为版本过低。
+func TestAgentEndpointMissingDetection(t *testing.T) {
+	cases := []struct {
+		name        string
+		status      int
+		minVersion  string
+		route       bool
+		wantMissing bool
+	}{
+		{"404 判定版本过低", http.StatusNotFound, agentMinVersionInsights, false, true},
+		{"405 判定版本过低", http.StatusMethodNotAllowed, agentMinVersionRouteVersions, true, true},
+		{"500 不判定版本过低", http.StatusInternalServerError, agentMinVersionInsights, false, false},
+		{"400 不判定版本过低", http.StatusBadRequest, agentMinVersionInsights, false, false},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+				w.WriteHeader(tc.status)
+				_, _ = w.Write([]byte(`{"error":"test"}`))
+			}))
+			defer server.Close()
+			client := NewAgentClient(server.URL, "token")
+			var err error
+			if tc.route {
+				_, err = client.RouteVersions(context.Background(), "example.com")
+			} else {
+				_, err = client.Metrics(context.Background())
+			}
+			if tc.wantMissing {
+				if !errors.Is(err, ErrAgentEndpointMissing) {
+					t.Fatalf("应判定为端点缺失：%v", err)
+				}
+				msg := err.Error()
+				if !strings.Contains(msg, tc.minVersion) || !strings.Contains(msg, "升级 Agent") {
+					t.Fatalf("错误信息应包含最低版本与升级提示：%q", msg)
+				}
+				return
+			}
+			if errors.Is(err, ErrAgentEndpointMissing) {
+				t.Fatalf("不应误判为版本过低：%v", err)
+			}
+			if err == nil {
+				t.Fatal("应返回错误")
+			}
+		})
+	}
+}
+
+func TestAgentStatusVersionField(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		_, _ = w.Write([]byte(`{"agent_version":"0.10.0","listen_addr":"127.0.0.1:7700"}`))
+	}))
+	defer server.Close()
+	client := NewAgentClient(server.URL, "token")
+	status, err := client.Status(context.Background())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if status["agent_version"] != "0.10.0" {
+		t.Fatalf("agent_version 解析失败：%#v", status)
+	}
+}