Implement Topaz adapter

internal/adapters/topaz/http_client_test.go

@@ -0,0 +1,106 @@
+package topaz_test
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/netkingdom/flex-auth/internal/adapters/topaz"
+)
+
+func TestHTTPClientUsesTopazDirectoryRESTShape(t *testing.T) {
+	var gotCheck topaz.DirectoryCheckRequest
+	var gotObject topaz.DirectoryObject
+	var gotRelation topaz.DirectoryRelation
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/api/v3/directory/check":
+			var body struct {
+				topaz.DirectoryCheckRequest
+			}
+			if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+				t.Fatalf("decode check: %v", err)
+			}
+			gotCheck = body.DirectoryCheckRequest
+			w.Header().Set("Content-Type", "application/json")
+			w.Write([]byte(`{"check":true,"etag":"etag:check"}`))
+		case "/api/v3/directory/object":
+			var body struct {
+				Object topaz.DirectoryObject `json:"object"`
+			}
+			if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+				t.Fatalf("decode object: %v", err)
+			}
+			gotObject = body.Object
+			w.WriteHeader(http.StatusNoContent)
+		case "/api/v3/directory/relation":
+			var body struct {
+				Relation topaz.DirectoryRelation `json:"relation"`
+			}
+			if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+				t.Fatalf("decode relation: %v", err)
+			}
+			gotRelation = body.Relation
+			w.Header().Set("Content-Type", "application/json")
+			w.Write([]byte(`{"etag":"etag:relation"}`))
+		case "/api/v3/directory/manifest":
+			if r.Header.Get("Content-Type") != "application/yaml" {
+				t.Fatalf("manifest content-type = %q", r.Header.Get("Content-Type"))
+			}
+			w.WriteHeader(http.StatusNoContent)
+		default:
+			t.Fatalf("unexpected path %s", r.URL.Path)
+		}
+	}))
+	defer server.Close()
+
+	client, err := topaz.NewHTTPClient(server.URL, nil)
+	if err != nil {
+		t.Fatalf("NewHTTPClient: %v", err)
+	}
+
+	check, err := client.Check(context.Background(), topaz.DirectoryCheckRequest{
+		ObjectType:  "document",
+		ObjectID:    "document:internal-note",
+		Relation:    "read",
+		SubjectType: "user",
+		SubjectID:   "user:alice",
+	})
+	if err != nil {
+		t.Fatalf("Check: %v", err)
+	}
+	if !check.Allowed || check.DirectoryETag != "etag:check" {
+		t.Fatalf("check = %+v", check)
+	}
+	if gotCheck.ObjectType != "document" || gotCheck.SubjectID != "user:alice" {
+		t.Fatalf("gotCheck = %+v", gotCheck)
+	}
+
+	if err := client.PutObject(context.Background(), topaz.DirectoryObject{Type: "document", ID: "document:internal-note"}); err != nil {
+		t.Fatalf("PutObject: %v", err)
+	}
+	if gotObject.Type != "document" || gotObject.ID != "document:internal-note" {
+		t.Fatalf("gotObject = %+v", gotObject)
+	}
+
+	write, err := client.PutRelation(context.Background(), topaz.DirectoryRelation{
+		ObjectType:  "document",
+		ObjectID:    "document:internal-note",
+		Relation:    "reader",
+		SubjectType: "user",
+		SubjectID:   "user:alice",
+	})
+	if err != nil {
+		t.Fatalf("PutRelation: %v", err)
+	}
+	if write.ETag != "etag:relation" || gotRelation.Relation != "reader" {
+		t.Fatalf("write = %+v relation = %+v", write, gotRelation)
+	}
+
+	if err := client.PutManifest(context.Background(), []byte("model: v3\n")); err != nil {
+		t.Fatalf("PutManifest: %v", err)
+	}
+}