initial commit

tests/integration/oauth2_token_expiration_in_response_test.go

@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package integration
+
+import (
+	"fmt"
+	"testing"
+	"time"
+)
+
+// TestOAuth2TokenExpirationInResponse verifies that token responses include
+// proper expiration information. Access tokens should expire after a set period,
+// and the expires_in field indicates seconds until expiration.
+//
+// Steps:
+// 1. Get access token
+// 2. Verify expires_in is present and reasonable
+// 3. Verify introspection shows expiration time
+func TestOAuth2TokenExpirationInResponse(t *testing.T) {
+	client := newTestClient(t)
+	appOwner := createTestAccount(t, client)
+	endUser := createTestAccount(t, client)
+
+	redirectURI := "https://example.com/expire/callback"
+	appID, _, _, clientSecret := createOAuth2Application(
+		t, client, appOwner,
+		fmt.Sprintf("Expiration Test %d", time.Now().UnixNano()),
+		[]string{redirectURI},
+		[]string{"identify"},
+	)
+
+	authCode, _ := authorizeOAuth2(
+		t,
+		client,
+		endUser.Token,
+		appID,
+		redirectURI,
+		[]string{"identify"},
+		"",
+		"",
+		"",
+	)
+	tokens := exchangeOAuth2AuthorizationCode(
+		t, client,
+		appID,
+		clientSecret,
+		authCode,
+		redirectURI,
+		"",
+	)
+
+	if tokens.ExpiresIn <= 0 {
+		t.Fatalf("expires_in must be positive, got %d", tokens.ExpiresIn)
+	}
+
+	maxExpiration := 365 * 24 * 60 * 60
+	if tokens.ExpiresIn > maxExpiration {
+		t.Fatalf("expires_in seems unreasonably long: %d seconds", tokens.ExpiresIn)
+	}
+
+	introspection := introspectOAuth2Token(t, client, appID, clientSecret, tokens.AccessToken)
+	if introspection.Exp <= 0 {
+		t.Fatal("introspection should include exp (expiration time)")
+	}
+
+	now := time.Now().Unix()
+	if introspection.Exp <= now {
+		t.Fatalf("exp should be in the future: exp=%d, now=%d", introspection.Exp, now)
+	}
+
+	expectedExp := now + int64(tokens.ExpiresIn)
+	slack := int64(60)
+	if introspection.Exp < expectedExp-slack || introspection.Exp > expectedExp+slack {
+		t.Logf("Warning: exp (%d) doesn't closely match now + expires_in (%d)", introspection.Exp, expectedExp)
+	}
+}