Add Go CDN and playground server

Build Core and Handles into in-memory CDN modules, add the marketing site and tutorial docs, and provide a SQLite-backed WebGPU playground with TypeScript tooling and profiling. Amp-Thread-ID: https://ampcode.com/threads/T-01a02485-5574-707c-bff4-5668d83bee8a Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
2026-08-21 16:42:02 +00:00
parent 53a53a8f3f
commit 7070799862
27 changed files with 3402 additions and 7 deletions
@@ -0,0 +1,137 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+func testApplication(t *testing.T) *application {
+	t.Helper()
+	store, err := openPlaygroundStore(filepath.Join(t.TempDir(), "test.db"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { store.Close() })
+	monaco := filepath.Join(t.TempDir(), "monaco")
+	if err := os.MkdirAll(monaco, 0o755); err != nil {
+		t.Fatal(err)
+	}
+	app, err := newApplication(store, map[string]memoryAsset{
+		"core.js": {
+			contentType: "text/javascript; charset=utf-8",
+			content:     []byte("export const ready = true"),
+			etag:        `"core"`,
+			modified:    time.Unix(0, 0),
+		},
+	}, monaco)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return app
+}
+
+func TestPackageIsServedFromMemory(t *testing.T) {
+	request := httptest.NewRequest(http.MethodGet, "/pkg/core.js", nil)
+	response := httptest.NewRecorder()
+	testApplication(t).routes().ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("status = %d", response.Code)
+	}
+	if response.Body.String() != "export const ready = true" {
+		t.Fatalf("body = %q", response.Body.String())
+	}
+	if response.Header().Get("Cross-Origin-Opener-Policy") != "same-origin" {
+		t.Fatal("cross-origin isolation header is missing")
+	}
+	if response.Header().Get("Access-Control-Allow-Origin") != "*" {
+		t.Fatal("package CORS header is missing")
+	}
+	if response.Header().Get("Cross-Origin-Resource-Policy") != "cross-origin" {
+		t.Fatal("package resource policy is missing")
+	}
+}
+
+func TestSaveAndLoadPlaygroundRevision(t *testing.T) {
+	app := testApplication(t)
+	handler := app.routes()
+	requestBody, _ := json.Marshal(map[string]string{
+		"title": "First scene",
+		"code":  "const scene = true;",
+	})
+	request := httptest.NewRequest(http.MethodPost, "/api/playgrounds", bytes.NewReader(requestBody))
+	response := httptest.NewRecorder()
+	handler.ServeHTTP(response, request)
+	if response.Code != http.StatusCreated {
+		t.Fatalf("save status = %d: %s", response.Code, response.Body.String())
+	}
+	var saved playground
+	if err := json.NewDecoder(response.Body).Decode(&saved); err != nil {
+		t.Fatal(err)
+	}
+	if saved.Revision != 1 || !playgroundIDPattern.MatchString(saved.ID) {
+		t.Fatalf("saved = %#v", saved)
+	}
+	requestBody, _ = json.Marshal(map[string]string{
+		"id":    saved.ID,
+		"title": "Second scene",
+		"code":  "const scene = false;",
+	})
+	request = httptest.NewRequest(http.MethodPost, "/api/playgrounds", bytes.NewReader(requestBody))
+	response = httptest.NewRecorder()
+	handler.ServeHTTP(response, request)
+	if response.Code != http.StatusCreated {
+		t.Fatalf("second save status = %d: %s", response.Code, response.Body.String())
+	}
+	var second playground
+	if err := json.NewDecoder(response.Body).Decode(&second); err != nil {
+		t.Fatal(err)
+	}
+	if second.ID != saved.ID || second.Revision != 2 {
+		t.Fatalf("second = %#v", second)
+	}
+
+	request = httptest.NewRequest(http.MethodGet, "/api/playgrounds/"+saved.ID+"/1", nil)
+	response = httptest.NewRecorder()
+	handler.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("load status = %d: %s", response.Code, response.Body.String())
+	}
+	var loaded playground
+	if err := json.NewDecoder(response.Body).Decode(&loaded); err != nil {
+		t.Fatal(err)
+	}
+	if loaded.Code != "const scene = true;" || loaded.Title != "First scene" {
+		t.Fatalf("loaded = %#v", loaded)
+	}
+
+	request = httptest.NewRequest(http.MethodGet, "/api/playgrounds/"+saved.ID+"/2", nil)
+	response = httptest.NewRecorder()
+	handler.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("second load status = %d: %s", response.Code, response.Body.String())
+	}
+	if err := json.NewDecoder(response.Body).Decode(&loaded); err != nil {
+		t.Fatal(err)
+	}
+	if loaded.Code != "const scene = false;" || loaded.Title != "Second scene" {
+		t.Fatalf("second loaded = %#v", loaded)
+	}
+}
+
+func TestSavedPlaygroundPageRoute(t *testing.T) {
+	request := httptest.NewRequest(http.MethodGet, "/playground/abcdef12/1", nil)
+	response := httptest.NewRecorder()
+	testApplication(t).routes().ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("status = %d", response.Code)
+	}
+	if contentType := response.Header().Get("Content-Type"); contentType != "text/html; charset=utf-8" {
+		t.Fatalf("content type = %q", contentType)
+	}
+}