Add support for test_requires in XcodeDeps

conan/tools/apple/xcodedeps.py

@@ -245,7 +245,9 @@ def _content(self):
         # Generate the config files for each component with name conan_pkgname_compname.xcconfig
         # If a package has no components the name is conan_pkgname_pkgname.xcconfig
         # Then all components are included in the conan_pkgname.xcconfig file
-        for dep in self._conanfile.dependencies.host.values():
+        host_req = self._conanfile.dependencies.host
+        test_req = self._conanfile.dependencies.test
+        for dep in list(host_req.values()) + list(test_req.values()):
             dep_name = _format_name(dep.ref.name)
 
             include_components_names = []

conans/test/functional/toolchains/apple/test_xcodedeps_components.py

@@ -202,3 +202,28 @@ def package_info(self):
     assert "tcp/1.0: Hello World Release!" in client.out
     assert "client/1.0: Hello World Release!" in client.out
     assert "chat/1.0: Hello World Release!" in client.out
+
+
+@pytest.mark.skipif(platform.system() != "Darwin", reason="Only for MacOS")
+@pytest.mark.tool_cmake
+def test_xcodedeps_test_require():
+    client = TestClient()
+    client.run("new gtest/1.0 -m cmake_lib")
+    # client.run("new cmake_lib -d name=app -d version=1.0")
+    client.run("create . -tf=None")
+
+    # Create library having build and test requires
+    conanfile = textwrap.dedent(r'''
+        from conan import ConanFile
+        class HelloLib(ConanFile):
+            settings = "os", "compiler", "build_type", "arch"
+            def build_requirements(self):
+                self.test_requires('gtest/1.0')
+        ''')
+    client.save({"conanfile.py": conanfile}, clean_first=True)
+    client.run("install . -g XcodeDeps")
+    assert os.path.isfile(os.path.join(client.current_folder, "conan_gtest.xcconfig"))
+    assert os.path.isfile(os.path.join(client.current_folder, "conan_gtest_gtest.xcconfig"))
+    assert os.path.isfile(os.path.join(client.current_folder, "conan_gtest_gtest_release_x86_64.xcconfig"))
+    assert os.path.isfile(os.path.join(client.current_folder, "conan_gtest_gtest_vars_release_x86_64.xcconfig"))
+    assert '#include "conan_gtest.xcconfig"' in client.load("conandeps.xcconfig")