diff --git a/src/objective-c/tests/Connectivity/Base.lproj/Main.storyboard b/src/objective-c/tests/Connectivity/Base.lproj/Main.storyboard
new file mode 100644
index 0000000000000000000000000000000000000000..9a05b8635d1ef71a5bfb70f953d553aedd91d6ba
--- /dev/null
+++ b/src/objective-c/tests/Connectivity/Base.lproj/Main.storyboard
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11129.15" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+ <dependencies>
+ <deployment identifier="iOS"/>
+ <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11103.10"/>
+ </dependencies>
+ <scenes>
+ <!--View Controller-->
+ <scene sceneID="tne-QT-ifu">
+ <objects>
+ <viewController id="BYZ-38-t0r" customClass="ViewController" sceneMemberID="viewController"/>
+ <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+ </objects>
+ </scene>
+ </scenes>
+</document>
diff --git a/src/objective-c/tests/Connectivity/ConnectivityTestingApp.xcodeproj/project.pbxproj b/src/objective-c/tests/Connectivity/ConnectivityTestingApp.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000000000000000000000000000000000..2a9466c03f11e8183720c6520d4919b174c51a66
--- /dev/null
+++ b/src/objective-c/tests/Connectivity/ConnectivityTestingApp.xcodeproj/project.pbxproj
@@ -0,0 +1,353 @@
+// !$*UTF8*$!
+{
+ archiveVersion = 1;
+ classes = {
+ };
+ objectVersion = 46;
+ objects = {
+
+/* Begin PBXBuildFile section */
+ 500A4E0AC9D489EB214D1ED4 /* libPods-ConnectivityTestingApp.a in Frameworks */ = {isa = PBXBuildFile; fileRef = C2AF815D8242A2172891621D /* libPods-ConnectivityTestingApp.a */; };
+ 63BFB9CC1D2478DD00E17927 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 63BFB9CB1D2478DD00E17927 /* main.m */; };
+ 63BFB9D21D2478DD00E17927 /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 63BFB9D11D2478DD00E17927 /* ViewController.m */; };
+ 63BFB9D51D2478DD00E17927 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 63BFB9D31D2478DD00E17927 /* Main.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+ 63BFB9C71D2478DD00E17927 /* ConnectivityTestingApp.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ConnectivityTestingApp.app; sourceTree = BUILT_PRODUCTS_DIR; };
+ 63BFB9CB1D2478DD00E17927 /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = SOURCE_ROOT; };
+ 63BFB9D11D2478DD00E17927 /* ViewController.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = ViewController.m; sourceTree = SOURCE_ROOT; };
+ 63BFB9D41D2478DD00E17927 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+ 63BFB9DB1D2478DD00E17927 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = SOURCE_ROOT; };
+ BA96CBC1612BD2F70E66246C /* Pods-ConnectivityTestingApp.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-ConnectivityTestingApp.release.xcconfig"; path = "Pods/Target Support Files/Pods-ConnectivityTestingApp/Pods-ConnectivityTestingApp.release.xcconfig"; sourceTree = "<group>"; };
+ C2AF815D8242A2172891621D /* libPods-ConnectivityTestingApp.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-ConnectivityTestingApp.a"; sourceTree = BUILT_PRODUCTS_DIR; };
+ FC9BD3AE427396EDB4CD13E3 /* Pods-ConnectivityTestingApp.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-ConnectivityTestingApp.debug.xcconfig"; path = "Pods/Target Support Files/Pods-ConnectivityTestingApp/Pods-ConnectivityTestingApp.debug.xcconfig"; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+ 63BFB9C41D2478DD00E17927 /* Frameworks */ = {
+ isa = PBXFrameworksBuildPhase;
+ buildActionMask = 2147483647;
+ files = (
+ 500A4E0AC9D489EB214D1ED4 /* libPods-ConnectivityTestingApp.a in Frameworks */,
+ );
+ runOnlyForDeploymentPostprocessing = 0;
+ };
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+ 16E6C67F2E48B42376DFFD2A /* Pods */ = {
+ isa = PBXGroup;
+ children = (
+ FC9BD3AE427396EDB4CD13E3 /* Pods-ConnectivityTestingApp.debug.xcconfig */,
+ BA96CBC1612BD2F70E66246C /* Pods-ConnectivityTestingApp.release.xcconfig */,
+ );
+ name = Pods;
+ sourceTree = "<group>";
+ };
+ 48F8EC18C66D3416A41F76F5 /* Frameworks */ = {
+ isa = PBXGroup;
+ children = (
+ C2AF815D8242A2172891621D /* libPods-ConnectivityTestingApp.a */,
+ );
+ name = Frameworks;
+ sourceTree = "<group>";
+ };
+ 63BFB9BE1D2478DD00E17927 = {
+ isa = PBXGroup;
+ children = (
+ 63BFB9D11D2478DD00E17927 /* ViewController.m */,
+ 63BFB9D31D2478DD00E17927 /* Main.storyboard */,
+ 63BFB9DB1D2478DD00E17927 /* Info.plist */,
+ 63BFB9CB1D2478DD00E17927 /* main.m */,
+ 63BFB9C81D2478DD00E17927 /* Products */,
+ 16E6C67F2E48B42376DFFD2A /* Pods */,
+ 48F8EC18C66D3416A41F76F5 /* Frameworks */,
+ );
+ sourceTree = "<group>";
+ };
+ 63BFB9C81D2478DD00E17927 /* Products */ = {
+ isa = PBXGroup;
+ children = (
+ 63BFB9C71D2478DD00E17927 /* ConnectivityTestingApp.app */,
+ );
+ name = Products;
+ sourceTree = "<group>";
+ };
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+ 63BFB9C61D2478DD00E17927 /* ConnectivityTestingApp */ = {
+ isa = PBXNativeTarget;
+ buildConfigurationList = 63BFB9DE1D2478DD00E17927 /* Build configuration list for PBXNativeTarget "ConnectivityTestingApp" */;
+ buildPhases = (
+ 4DCA2703A0AA5DC1BD2751B8 /* [CP] Check Pods Manifest.lock */,
+ 63BFB9C31D2478DD00E17927 /* Sources */,
+ 63BFB9C41D2478DD00E17927 /* Frameworks */,
+ 63BFB9C51D2478DD00E17927 /* Resources */,
+ 8593A2388A8F7BF5A7E98D26 /* [CP] Embed Pods Frameworks */,
+ 5347BF6C41E7888C1C05CD88 /* [CP] Copy Pods Resources */,
+ );
+ buildRules = (
+ );
+ dependencies = (
+ );
+ name = ConnectivityTestingApp;
+ productName = ConnectivityTestingApp;
+ productReference = 63BFB9C71D2478DD00E17927 /* ConnectivityTestingApp.app */;
+ productType = "com.apple.product-type.application";
+ };
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+ 63BFB9BF1D2478DD00E17927 /* Project object */ = {
+ isa = PBXProject;
+ attributes = {
+ LastUpgradeCheck = 0800;
+ ORGANIZATIONNAME = gRPC;
+ TargetAttributes = {
+ 63BFB9C61D2478DD00E17927 = {
+ CreatedOnToolsVersion = 8.0;
+ DevelopmentTeam = EQHXZ8M8AV;
+ DevelopmentTeamName = "Google, Inc.";
+ ProvisioningStyle = Automatic;
+ };
+ };
+ };
+ buildConfigurationList = 63BFB9C21D2478DD00E17927 /* Build configuration list for PBXProject "ConnectivityTestingApp" */;
+ compatibilityVersion = "Xcode 3.2";
+ developmentRegion = English;
+ hasScannedForEncodings = 0;
+ knownRegions = (
+ en,
+ Base,
+ );
+ mainGroup = 63BFB9BE1D2478DD00E17927;
+ productRefGroup = 63BFB9C81D2478DD00E17927 /* Products */;
+ projectDirPath = "";
+ projectRoot = "";
+ targets = (
+ 63BFB9C61D2478DD00E17927 /* ConnectivityTestingApp */,
+ );
+ };
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+ 63BFB9C51D2478DD00E17927 /* Resources */ = {
+ isa = PBXResourcesBuildPhase;
+ buildActionMask = 2147483647;
+ files = (
+ 63BFB9D51D2478DD00E17927 /* Main.storyboard in Resources */,
+ );
+ runOnlyForDeploymentPostprocessing = 0;
+ };
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXShellScriptBuildPhase section */
+ 4DCA2703A0AA5DC1BD2751B8 /* [CP] Check Pods Manifest.lock */ = {
+ isa = PBXShellScriptBuildPhase;
+ buildActionMask = 2147483647;
+ files = (
+ );
+ inputPaths = (
+ );
+ name = "[CP] Check Pods Manifest.lock";
+ outputPaths = (
+ );
+ runOnlyForDeploymentPostprocessing = 0;
+ shellPath = /bin/sh;
+ shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n exit 1\nfi\n";
+ showEnvVarsInLog = 0;
+ };
+ 5347BF6C41E7888C1C05CD88 /* [CP] Copy Pods Resources */ = {
+ isa = PBXShellScriptBuildPhase;
+ buildActionMask = 2147483647;
+ files = (
+ );
+ inputPaths = (
+ );
+ name = "[CP] Copy Pods Resources";
+ outputPaths = (
+ );
+ runOnlyForDeploymentPostprocessing = 0;
+ shellPath = /bin/sh;
+ shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-ConnectivityTestingApp/Pods-ConnectivityTestingApp-resources.sh\"\n";
+ showEnvVarsInLog = 0;
+ };
+ 8593A2388A8F7BF5A7E98D26 /* [CP] Embed Pods Frameworks */ = {
+ isa = PBXShellScriptBuildPhase;
+ buildActionMask = 2147483647;
+ files = (
+ );
+ inputPaths = (
+ );
+ name = "[CP] Embed Pods Frameworks";
+ outputPaths = (
+ );
+ runOnlyForDeploymentPostprocessing = 0;
+ shellPath = /bin/sh;
+ shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-ConnectivityTestingApp/Pods-ConnectivityTestingApp-frameworks.sh\"\n";
+ showEnvVarsInLog = 0;
+ };
+/* End PBXShellScriptBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+ 63BFB9C31D2478DD00E17927 /* Sources */ = {
+ isa = PBXSourcesBuildPhase;
+ buildActionMask = 2147483647;
+ files = (
+ 63BFB9D21D2478DD00E17927 /* ViewController.m in Sources */,
+ 63BFB9CC1D2478DD00E17927 /* main.m in Sources */,
+ );
+ runOnlyForDeploymentPostprocessing = 0;
+ };
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+ 63BFB9D31D2478DD00E17927 /* Main.storyboard */ = {
+ isa = PBXVariantGroup;
+ children = (
+ 63BFB9D41D2478DD00E17927 /* Base */,
+ );
+ name = Main.storyboard;
+ path = .;
+ sourceTree = SOURCE_ROOT;
+ };
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+ 63BFB9DC1D2478DD00E17927 /* Debug */ = {
+ isa = XCBuildConfiguration;
+ buildSettings = {
+ ALWAYS_SEARCH_USER_PATHS = NO;
+ CLANG_ANALYZER_NONNULL = YES;
+ CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+ CLANG_CXX_LIBRARY = "libc++";
+ CLANG_ENABLE_MODULES = YES;
+ CLANG_ENABLE_OBJC_ARC = YES;
+ CLANG_WARN_BOOL_CONVERSION = YES;
+ CLANG_WARN_CONSTANT_CONVERSION = YES;
+ CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+ CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+ CLANG_WARN_EMPTY_BODY = YES;
+ CLANG_WARN_ENUM_CONVERSION = YES;
+ CLANG_WARN_INT_CONVERSION = YES;
+ CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+ CLANG_WARN_UNREACHABLE_CODE = YES;
+ CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+ "CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+ COPY_PHASE_STRIP = NO;
+ DEBUG_INFORMATION_FORMAT = dwarf;
+ ENABLE_STRICT_OBJC_MSGSEND = YES;
+ ENABLE_TESTABILITY = YES;
+ GCC_C_LANGUAGE_STANDARD = gnu99;
+ GCC_DYNAMIC_NO_PIC = NO;
+ GCC_NO_COMMON_BLOCKS = YES;
+ GCC_OPTIMIZATION_LEVEL = 0;
+ GCC_PREPROCESSOR_DEFINITIONS = (
+ "DEBUG=1",
+ "$(inherited)",
+ );
+ GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+ GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+ GCC_WARN_UNDECLARED_SELECTOR = YES;
+ GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+ GCC_WARN_UNUSED_FUNCTION = YES;
+ GCC_WARN_UNUSED_VARIABLE = YES;
+ IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+ MTL_ENABLE_DEBUG_INFO = YES;
+ ONLY_ACTIVE_ARCH = YES;
+ SDKROOT = iphoneos;
+ };
+ name = Debug;
+ };
+ 63BFB9DD1D2478DD00E17927 /* Release */ = {
+ isa = XCBuildConfiguration;
+ buildSettings = {
+ ALWAYS_SEARCH_USER_PATHS = NO;
+ CLANG_ANALYZER_NONNULL = YES;
+ CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+ CLANG_CXX_LIBRARY = "libc++";
+ CLANG_ENABLE_MODULES = YES;
+ CLANG_ENABLE_OBJC_ARC = YES;
+ CLANG_WARN_BOOL_CONVERSION = YES;
+ CLANG_WARN_CONSTANT_CONVERSION = YES;
+ CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+ CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+ CLANG_WARN_EMPTY_BODY = YES;
+ CLANG_WARN_ENUM_CONVERSION = YES;
+ CLANG_WARN_INT_CONVERSION = YES;
+ CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+ CLANG_WARN_UNREACHABLE_CODE = YES;
+ CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+ "CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+ COPY_PHASE_STRIP = NO;
+ DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+ ENABLE_NS_ASSERTIONS = NO;
+ ENABLE_STRICT_OBJC_MSGSEND = YES;
+ GCC_C_LANGUAGE_STANDARD = gnu99;
+ GCC_NO_COMMON_BLOCKS = YES;
+ GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+ GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+ GCC_WARN_UNDECLARED_SELECTOR = YES;
+ GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+ GCC_WARN_UNUSED_FUNCTION = YES;
+ GCC_WARN_UNUSED_VARIABLE = YES;
+ IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+ MTL_ENABLE_DEBUG_INFO = NO;
+ SDKROOT = iphoneos;
+ VALIDATE_PRODUCT = YES;
+ };
+ name = Release;
+ };
+ 63BFB9DF1D2478DD00E17927 /* Debug */ = {
+ isa = XCBuildConfiguration;
+ baseConfigurationReference = FC9BD3AE427396EDB4CD13E3 /* Pods-ConnectivityTestingApp.debug.xcconfig */;
+ buildSettings = {
+ ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+ INFOPLIST_FILE = Info.plist;
+ IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+ LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+ PRODUCT_BUNDLE_IDENTIFIER = io.grpc.ConnectivityTestingApp;
+ PRODUCT_NAME = "$(TARGET_NAME)";
+ };
+ name = Debug;
+ };
+ 63BFB9E01D2478DD00E17927 /* Release */ = {
+ isa = XCBuildConfiguration;
+ baseConfigurationReference = BA96CBC1612BD2F70E66246C /* Pods-ConnectivityTestingApp.release.xcconfig */;
+ buildSettings = {
+ ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+ INFOPLIST_FILE = Info.plist;
+ IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+ LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+ PRODUCT_BUNDLE_IDENTIFIER = io.grpc.ConnectivityTestingApp;
+ PRODUCT_NAME = "$(TARGET_NAME)";
+ };
+ name = Release;
+ };
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+ 63BFB9C21D2478DD00E17927 /* Build configuration list for PBXProject "ConnectivityTestingApp" */ = {
+ isa = XCConfigurationList;
+ buildConfigurations = (
+ 63BFB9DC1D2478DD00E17927 /* Debug */,
+ 63BFB9DD1D2478DD00E17927 /* Release */,
+ );
+ defaultConfigurationIsVisible = 0;
+ defaultConfigurationName = Release;
+ };
+ 63BFB9DE1D2478DD00E17927 /* Build configuration list for PBXNativeTarget "ConnectivityTestingApp" */ = {
+ isa = XCConfigurationList;
+ buildConfigurations = (
+ 63BFB9DF1D2478DD00E17927 /* Debug */,
+ 63BFB9E01D2478DD00E17927 /* Release */,
+ );
+ defaultConfigurationIsVisible = 0;
+ defaultConfigurationName = Release;
+ };
+/* End XCConfigurationList section */
+ };
+ rootObject = 63BFB9BF1D2478DD00E17927 /* Project object */;
+}
diff --git a/src/objective-c/tests/Connectivity/ConnectivityTestingApp.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/src/objective-c/tests/Connectivity/ConnectivityTestingApp.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000000000000000000000000000000000000..b541b4b44d5220c3bccf391fc4bafc022b23f59e
--- /dev/null
+++ b/src/objective-c/tests/Connectivity/ConnectivityTestingApp.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+ version = "1.0">
+ <FileRef
+ location = "self:ConnectivityTestingApp.xcodeproj">
+ </FileRef>
+</Workspace>
diff --git a/src/objective-c/tests/Connectivity/Info.plist b/src/objective-c/tests/Connectivity/Info.plist
new file mode 100644
index 0000000000000000000000000000000000000000..8a9fb887013665d59f6bc67c59f64009efce32d4
--- /dev/null
+++ b/src/objective-c/tests/Connectivity/Info.plist
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+ <key>CFBundleDevelopmentRegion</key>
+ <string>en</string>
+ <key>CFBundleExecutable</key>
+ <string>$(EXECUTABLE_NAME)</string>
+ <key>CFBundleIdentifier</key>
+ <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundleName</key>
+ <string>$(PRODUCT_NAME)</string>
+ <key>CFBundlePackageType</key>
+ <string>APPL</string>
+ <key>CFBundleShortVersionString</key>
+ <string>1.0</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleVersion</key>
+ <string>1</string>
+ <key>LSRequiresIPhoneOS</key>
+ <true/>
+ <key>UILaunchStoryboardName</key>
+ <string>Main</string>
+ <key>UIMainStoryboardFile</key>
+ <string>Main</string>
+ <key>UIRequiredDeviceCapabilities</key>
+ <array>
+ <string>armv7</string>
+ </array>
+ <key>UISupportedInterfaceOrientations</key>
+ <array>
+ <string>UIInterfaceOrientationPortrait</string>
+ <string>UIInterfaceOrientationLandscapeLeft</string>
+ <string>UIInterfaceOrientationLandscapeRight</string>
+ </array>
+</dict>
+</plist>
diff --git a/src/objective-c/tests/Connectivity/Podfile b/src/objective-c/tests/Connectivity/Podfile
new file mode 100644
index 0000000000000000000000000000000000000000..f9224d9e4e970249d8996b3d6c31d7bd4139ddae
--- /dev/null
+++ b/src/objective-c/tests/Connectivity/Podfile
@@ -0,0 +1,10 @@
+install! 'cocoapods', :deterministic_uuids => false
+
+# Location of gRPC's repo root relative to this file.
+GRPC_LOCAL_SRC = '../../../..'
+
+target 'ConnectivityTestingApp' do
+ pod 'gRPC', :path => GRPC_LOCAL_SRC
+ pod 'Protobuf', :path => "#{GRPC_LOCAL_SRC}/third_party/protobuf"
+ pod 'BoringSSL', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c"
+end
diff --git a/src/objective-c/tests/Connectivity/README.md b/src/objective-c/tests/Connectivity/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..851cb9d1dabebc9d884d0fbdd81e1e7d4c786a78
--- /dev/null
+++ b/src/objective-c/tests/Connectivity/README.md
@@ -0,0 +1,16 @@
+This app can be used to manually test gRPC under changing network conditions.
+
+It makes RPCs in a loop, logging when the request is sent and the response is received.
+
+To test on the simulator, run `pod install`, open the workspace created by Cocoapods, and run the app.
+Once running, disable WiFi (or ethernet) _in your computer_, then enable it again after a while. Don't
+bother with the simulator's WiFi or cell settings, as they have no effect: Simulator apps are just Mac
+apps running within the simulator UI.
+
+The expected result is to never see a "hanged" RPC: success or failure should happen almost immediately
+after sending the request. Symptom of a hanged RPC is a log like the following being the last in your
+console:
+
+```
+2016-06-29 16:51:29.443 ConnectivityTestingApp[73129:3567949] Sending request.
+```
diff --git a/src/objective-c/tests/Connectivity/ViewController.m b/src/objective-c/tests/Connectivity/ViewController.m
new file mode 100644
index 0000000000000000000000000000000000000000..2b199c9617fbc062b0a1cacc2fbc77424ca3750d
--- /dev/null
+++ b/src/objective-c/tests/Connectivity/ViewController.m
@@ -0,0 +1,82 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#import <UIKit/UIKit.h>
+
+#import <GRPCClient/GRPCCall.h>
+#import <ProtoRPC/ProtoMethod.h>
+#import <RxLibrary/GRXWriter+Immediate.h>
+#import <RxLibrary/GRXWriter+Transformations.h>
+
+@interface ViewController : UIViewController
+@end
+
+@implementation ViewController
+- (void)viewDidLoad {
+ [super viewDidLoad];
+
+ NSString *host = @"grpc-test.sandbox.googleapis.com";
+
+ GRPCProtoMethod *method = [[GRPCProtoMethod alloc] initWithPackage:@"grpc.testing"
+ service:@"TestService"
+ method:@"StreamingOutputCall"];
+
+ __block void (^startCall)() = ^{
+ GRXWriter *loggingRequestWriter = [[GRXWriter writerWithValue:[NSData data]] map:^id(id value) {
+ NSLog(@"Sending request.");
+ return value;
+ }];
+
+ GRPCCall *call = [[GRPCCall alloc] initWithHost:host
+ path:method.HTTPPath
+ requestsWriter:loggingRequestWriter];
+
+ [call startWithWriteable:[GRXWriteable writeableWithEventHandler:^(BOOL done, id value,
+ NSError *error) {
+ if (!done) {
+ return;
+ }
+ if (error) {
+ NSLog(@"Finished with error %@", error);
+ } else {
+ NSLog(@"Finished successfully.");
+ }
+
+ dispatch_time_t oneSecond = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC));
+ dispatch_after(oneSecond, dispatch_get_main_queue(), startCall);
+ }]];
+ };
+
+ startCall();
+}
+@end
diff --git a/src/objective-c/tests/Connectivity/main.m b/src/objective-c/tests/Connectivity/main.m
new file mode 100644
index 0000000000000000000000000000000000000000..5e09196d54902cdcefa217c40534f458a3baf3e3
--- /dev/null
+++ b/src/objective-c/tests/Connectivity/main.m
@@ -0,0 +1,46 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : UIResponder <UIApplicationDelegate>
+@property (strong, nonatomic) UIWindow *window;
+@end
+@implementation AppDelegate
+@end
+
+int main(int argc, char * argv[]) {
+ @autoreleasepool {
+ return UIApplicationMain(argc, argv, nil, NSStringFromClass(AppDelegate.class));
+ }
+}