asd

internal/standard/fetch_promise_test.go

@@ -0,0 +1,51 @@
+package standard
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/dop251/goja"
+
+	"reichard.io/poiesis/internal/builtin"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestFetchReturnsPromise(t *testing.T) {
+	vm := goja.New()
+	builtin.RegisterBuiltins(vm)
+
+	result, err := vm.RunString(`fetch({input: "https://example.com"})`)
+	require.NoError(t, err)
+
+	promise, ok := result.Export().(*goja.Promise)
+	require.True(t, ok, "fetch should return a Promise")
+	assert.NotNil(t, promise)
+}
+
+func TestFetchAsyncAwait(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(`{"status":"ok"}`))
+	}))
+	defer server.Close()
+
+	vm := goja.New()
+	builtin.RegisterBuiltins(vm)
+
+	result, err := vm.RunString(`
+		async function testFetch() {
+			const response = await fetch({input: "` + server.URL + `"});
+			return response.ok;
+		}
+		testFetch();
+	`)
+	require.NoError(t, err)
+
+	promise, ok := result.Export().(*goja.Promise)
+	require.True(t, ok, "async function should return a Promise")
+	assert.NotNil(t, promise)
+}