feat: ship Barkstack UI plugin

internal/adminui/handler_test.go

@@ -0,0 +1,62 @@
+package adminui
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func TestManifestEndpointDescribesPawSQLPlugin(t *testing.T) {
+	response := httptest.NewRecorder()
+	Handler(nil).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/barkstack/ui/manifest.json", nil))
+	if response.Code != http.StatusOK {
+		t.Fatalf("status = %d", response.Code)
+	}
+	if got := response.Header().Get("Content-Type"); got != "application/json" {
+		t.Fatalf("content type = %q", got)
+	}
+	var got manifest
+	if err := json.Unmarshal(response.Body.Bytes(), &got); err != nil {
+		t.Fatal(err)
+	}
+	if got.APIVersion != "barkstack.dev/ui/v1" || got.ID != "pawsql" || got.Entry != entryPath || got.Element != "barkstack-pawsql" {
+		t.Fatalf("manifest = %+v", got)
+	}
+}
+
+func TestEmbeddedEntryAssetIsServedWithJavaScriptContentType(t *testing.T) {
+	response := httptest.NewRecorder()
+	Handler(nil).ServeHTTP(response, httptest.NewRequest(http.MethodGet, entryPath, nil))
+	if response.Code != http.StatusOK {
+		t.Fatalf("status = %d", response.Code)
+	}
+	if got := response.Header().Get("Content-Type"); !strings.Contains(got, "javascript") {
+		t.Fatalf("content type = %q", got)
+	}
+	if response.Body.Len() == 0 {
+		t.Fatal("embedded entry asset is empty")
+	}
+}
+
+func TestStatusEndpointReportsConfiguredRoutes(t *testing.T) {
+	routes := []RouteSummary{{Name: "reporting", Hostname: "reports.example.com", Managed: true}}
+	response := httptest.NewRecorder()
+	Handler(routes).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/barkstack/ui/status.json", nil))
+	var got statusResponse
+	if err := json.Unmarshal(response.Body.Bytes(), &got); err != nil {
+		t.Fatal(err)
+	}
+	if got.Status != "running" || len(got.Routes) != 1 || got.Routes[0] != routes[0] {
+		t.Fatalf("status response = %+v", got)
+	}
+}
+
+func TestUnknownAssetReturnsNotFound(t *testing.T) {
+	response := httptest.NewRecorder()
+	Handler(nil).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/barkstack/ui/assets/missing.js", nil))
+	if response.Code != http.StatusNotFound {
+		t.Fatalf("status = %d, want 404", response.Code)
+	}
+}