[NC Apple coverage] Add unit tests for BleSocket on Apple.

PiperOrigin-RevId: 808378919

internal/platform/implementation/apple/Mediums/BLE/Tests/BUILD

@@ -37,6 +37,7 @@ objc_library(
         "GNCFakeCentralManager.m",
         "GNCFakePeripheral.m",
         "GNCFakePeripheralManager.m",
+        "GNCMFakeConnection.mm",
         "NSData+GNCBase85Test.m",
         "NSData+GNCWebSafeBase64Test.m",
     ],
@@ -49,6 +50,7 @@ objc_library(
         "GNCFakeCentralManager.h",
         "GNCFakePeripheral.h",
         "GNCFakePeripheralManager.h",
+        "GNCMFakeConnection.h",
     ],
     deps = [
         "//internal/platform/implementation:comm",

internal/platform/implementation/apple/Mediums/BLE/Tests/GNCMFakeConnection.h

@@ -0,0 +1,34 @@
+// 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.
+
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCMConnection.h"
+
+#import <Foundation/Foundation.h>
+
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCBLEGATTCharacteristic.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCPeripheral.h"
+
+/** A fake implementation of @c GNCMConnection for testing. */
+@interface GNCMFakeConnection : NSObject <GNCMConnection>
+
+@property(nonatomic, readwrite) BOOL isConnected;
+@property(nonatomic, readwrite) NSInteger maxDataLength;
+@property(nonatomic, readwrite) GNCBLEGATTCharacteristic *characteristic;
+@property(nonatomic, readwrite) id<GNCPeripheral> peripheral;
+@property(nonatomic, readwrite) GNCMConnectionHandlers *connectionHandlers;
+
+- (void)simulateDataReceived:(NSData *)data;
+- (void)simulateDisconnect;
+
+@end

internal/platform/implementation/apple/Mediums/BLE/Tests/GNCMFakeConnection.mm

@@ -0,0 +1,64 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not us/e 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.
+
+#import "internal/platform/implementation/apple/Mediums/BLE/Tests/GNCMFakeConnection.h"
+
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCBLEGATTCharacteristic.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCMConnection.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCPeripheral.h"
+
+@implementation GNCMFakeConnection
+@synthesize isConnected = _isConnected;
+@synthesize maxDataLength = _maxDataLength;
+@synthesize characteristic = _characteristic;
+@synthesize peripheral = _peripheral;
+@synthesize connectionHandlers = _connectionHandlers;
+
+- (instancetype)init {
+  self = [super init];
+  if (self) {
+    _isConnected = YES;
+    _maxDataLength = 20;
+  }
+  return self;
+}
+
+- (void)disconnect {
+  _isConnected = NO;
+}
+
+- (void)sendData:(NSData *)payload
+    progressHandler:(GNCMProgressHandler)progressHandler
+         completion:(GNCMPayloadResultHandler)completion {
+  if (completion) {
+    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+      completion(GNCMPayloadResultSuccess);
+    });
+  }
+}
+
+- (void)simulateDataReceived:(NSData *)data {
+  if (_connectionHandlers && _connectionHandlers.payloadHandler) {
+    _connectionHandlers.payloadHandler(data);
+  }
+}
+
+- (void)simulateDisconnect {
+  _isConnected = NO;
+  if (_connectionHandlers && _connectionHandlers.disconnectedHandler) {
+    _connectionHandlers.disconnectedHandler();
+  }
+}
+
+@end

internal/platform/implementation/apple/Tests/BUILD

@@ -37,6 +37,7 @@ objc_library(
         "GNCWifiLanMediumTest.mm",
         "UtilsTest.mm",
         "ble_peripheral_test.mm",
+        "ble_socket_test.mm",
     ],
     deps = [
         "//internal/platform:base",
@@ -46,6 +47,7 @@ objc_library(
         "//internal/platform/implementation/apple:Shared",
         "//internal/platform/implementation/apple:ble_v2",
         "//internal/platform/implementation/apple/Mediums/BLE",
+        "//internal/platform/implementation/apple/Mediums/BLE/Tests:BLETestsLib",
         "//internal/platform/implementation/apple/Mediums/WiFiCommon",
         "//internal/platform/implementation/apple/Mediums/WiFiCommon/Tests:FakeNWFramework",
         "//third_party/apple_frameworks:CommonCrypto",

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

@@ -0,0 +1,141 @@
+// 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_socket.h"
+
+#import <XCTest/XCTest.h>
+
+#include "internal/platform/exception.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCBLEGATTCharacteristic.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCBLEGATTServer.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCCentralManager.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCMConnection.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCPeripheral.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/GNCPeripheralManager.h"
+#import "internal/platform/implementation/apple/Mediums/BLE/Tests/GNCMFakeConnection.h"
+
+@interface GNCBleSocketTest : XCTestCase
+@end
+
+@implementation GNCBleSocketTest {
+  nearby::apple::BleSocket *_socket;
+  GNCMFakeConnection *_fakeGNCMConnection;
+}
+
+- (void)setUp {
+  [super setUp];
+  _fakeGNCMConnection = [[GNCMFakeConnection alloc] init];
+  _socket = new nearby::apple::BleSocket(_fakeGNCMConnection);
+  _fakeGNCMConnection.connectionHandlers = _socket->GetInputStream().GetConnectionHandlers();
+}
+
+- (void)tearDown {
+  delete _socket;
+  [super tearDown];
+}
+
+- (void)testBleSocketConstructor {
+  XCTAssertNotEqual(_socket, nullptr);
+}
+
+- (void)testBleSocketGetInputStream {
+  XCTAssertNotEqual(&_socket->GetInputStream(), nullptr);
+}
+
+- (void)testBleSocketGetOutputStream {
+  XCTAssertNotEqual(&_socket->GetOutputStream(), nullptr);
+}
+
+- (void)testBleSocketClose {
+  XCTAssertEqual(_socket->Close().value, nearby::Exception::kSuccess);
+  XCTAssertTrue(_socket->IsClosed());
+}
+
+- (void)testBleSocketGetRemotePeripheralId {
+  XCTAssertEqual(_socket->GetRemotePeripheralId(), 0xffffffffffffffff);
+}
+
+- (void)testBleSocketIsClosed {
+  XCTAssertFalse(_socket->IsClosed());
+  XCTAssertEqual(_socket->Close().value, nearby::Exception::kSuccess);
+  XCTAssertTrue(_socket->IsClosed());
+}
+
+- (void)testBleSocketSetCloseNotifier {
+  bool notifierCalled = false;
+  _socket->SetCloseNotifier([&notifierCalled] { notifierCalled = true; });
+  XCTAssertEqual(_socket->Close().value, nearby::Exception::kSuccess);
+  XCTAssertTrue(notifierCalled);
+}
+
+- (void)testBleInputStreamRead {
+  nearby::apple::BleInputStream &inputStream = _socket->GetInputStream();
+
+  // Simulate data coming in.
+  NSString *testString = @"Hello";
+  NSData *testData = [testString dataUsingEncoding:NSUTF8StringEncoding];
+  [_fakeGNCMConnection simulateDataReceived:testData];
+
+  // Read the data.
+  nearby::ExceptionOr<nearby::ByteArray> result = inputStream.Read(testData.length);
+  XCTAssertTrue(result.ok());
+  XCTAssertEqual(result.result().size(), testData.length);
+  XCTAssertEqualObjects(testData, [NSData dataWithBytes:result.result().data()
+                                                 length:result.result().size()]);
+}
+
+- (void)testBleInputStreamReadAfterDisconnect {
+  nearby::apple::BleInputStream &inputStream = _socket->GetInputStream();
+
+  // Simulate data coming in.
+  NSString *testString = @"Hello";
+  NSData *testData = [testString dataUsingEncoding:NSUTF8StringEncoding];
+  [_fakeGNCMConnection simulateDataReceived:testData];
+
+  // Simulate disconnect.
+  [_fakeGNCMConnection simulateDisconnect];
+
+  // Reads should now fail with an IO exception.
+  nearby::ExceptionOr<nearby::ByteArray> result = inputStream.Read(testData.length);
+  XCTAssertFalse(result.ok());
+  XCTAssertEqual(result.exception(), nearby::Exception::kIo);
+
+  // Further reads should also fail.
+  result = inputStream.Read(1);
+  XCTAssertFalse(result.ok());
+  XCTAssertEqual(result.exception(), nearby::Exception::kIo);
+}
+
+- (void)testBleInputStreamClose {
+  nearby::apple::BleInputStream &inputStream = _socket->GetInputStream();
+  XCTAssertEqual(inputStream.Close().value, nearby::Exception::kSuccess);
+}
+
+- (void)testBleOutputStreamWrite {
+  nearby::apple::BleOutputStream &outputStream = _socket->GetOutputStream();
+  nearby::ByteArray data("test");
+  XCTAssertEqual(outputStream.Write(data).value, nearby::Exception::kSuccess);
+}
+
+- (void)testBleOutputStreamFlush {
+  nearby::apple::BleOutputStream &outputStream = _socket->GetOutputStream();
+  XCTAssertEqual(outputStream.Flush().value, nearby::Exception::kSuccess);
+}
+
+- (void)testBleOutputStreamClose {
+  nearby::apple::BleOutputStream &outputStream = _socket->GetOutputStream();
+  XCTAssertEqual(outputStream.Close().value, nearby::Exception::kSuccess);
+}
+
+@end