[NC Apple coverage] Add unit tests for BleL2capServerSocket.

PiperOrigin-RevId: 825804364

internal/platform/implementation/apple/Tests/BUILD

@@ -38,6 +38,7 @@ objc_library(
         "GNCWifiHotspotMediumTest.mm",
         "GNCWifiLanMediumTest.mm",
         "UtilsTest.mm",
+        "ble_l2cap_server_socket_test.mm",
         "ble_medium_test.mm",
         "ble_peripheral_test.mm",
         "ble_server_socket_test.mm",

internal/platform/implementation/apple/Tests/ble_l2cap_server_socket_test.mm

@@ -0,0 +1,96 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "internal/platform/implementation/apple/ble_l2cap_server_socket.h"
+
+#import <XCTest/XCTest.h>
+
+#include <memory>
+#include <utility>
+
+#include "internal/platform/exception.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCBLEL2CAPConnection.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCBLEL2CAPStream.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/Tests/GNCBLEL2CAPFakeInputOutputStream.h"
+#include "internal/platform/implementation/apple/ble_l2cap_socket.h"
+
+@interface GNCBleL2capServerSocketTest : XCTestCase
+@end
+
+@implementation GNCBleL2capServerSocketTest {
+  std::unique_ptr<nearby::apple::BleL2capServerSocket> _serverSocket;
+}
+
+- (void)setUp {
+  [super setUp];
+  _serverSocket = std::make_unique<nearby::apple::BleL2capServerSocket>();
+}
+
+- (void)tearDown {
+  _serverSocket.reset();
+  [super tearDown];
+}
+
+- (void)testBleL2capServerSocketGetSetPSM {
+  int psm = 10;
+  _serverSocket->SetPSM(psm);
+  XCTAssertEqual(_serverSocket->GetPSM(), psm);
+}
+
+- (void)testBleL2capServerSocketAccept {
+  XCTestExpectation *expectation = [self expectationWithDescription:@"accept"];
+  dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+    std::unique_ptr<nearby::api::ble::BleL2capSocket> clientSocket = _serverSocket->Accept();
+    XCTAssertNotEqual(clientSocket.get(), nullptr);
+    [expectation fulfill];
+  });
+
+  GNCBLEL2CAPFakeInputOutputStream *fakeInputOutputStream =
+      [[GNCBLEL2CAPFakeInputOutputStream alloc] initWithBufferSize:1024];
+  GNCBLEL2CAPStream *stream = [[GNCBLEL2CAPStream alloc]
+      initWithClosedBlock:^() {
+      }
+              inputStream:fakeInputOutputStream.inputStream
+             outputStream:fakeInputOutputStream.outputStream];
+  GNCBLEL2CAPConnection *connection =
+      [GNCBLEL2CAPConnection connectionWithStream:stream
+                                        serviceID:nil
+                               incomingConnection:NO
+                                    callbackQueue:dispatch_get_main_queue()];
+  auto socket = std::make_unique<nearby::apple::BleL2capSocket>(connection);
+  XCTAssertTrue(_serverSocket->AddPendingSocket(std::move(socket)));
+
+  [self waitForExpectationsWithTimeout:1 handler:nil];
+}
+
+- (void)testBleL2capServerSocketClose {
+  XCTestExpectation *expectation = [self expectationWithDescription:@"close"];
+  dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+    std::unique_ptr<nearby::api::ble::BleL2capSocket> clientSocket = _serverSocket->Accept();
+    XCTAssertEqual(clientSocket.get(), nullptr);
+    [expectation fulfill];
+  });
+
+  XCTAssertEqual(_serverSocket->Close().value, nearby::Exception::kSuccess);
+  [self waitForExpectationsWithTimeout:1 handler:nil];
+}
+
+- (void)testBleL2capServerSocketSetCloseNotifier {
+  bool notifierCalled = false;
+  _serverSocket->SetCloseNotifier([&notifierCalled] { notifierCalled = true; });
+  XCTAssertEqual(_serverSocket->Close().value, nearby::Exception::kSuccess);
+  XCTAssertTrue(notifierCalled);
+}
+
+@end