Switch from GoogleTest to Catch2

tests/CMakeLists.txt

@@ -1,20 +1,8 @@
 
-# set up GoogleTest
 if(BUILD_TESTS)
-  include(FetchContent)
-  FetchContent_Declare(
-    googletest
-    URL https://github.com/google/googletest/archive/dddb219c3eb96d7f9200f09b0a381f016e6b4562.zip
-  )
-  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
-  FetchContent_MakeAvailable(googletest)
-
-  # for E2E tests, controlling Docker containers
+  find_package(catch2 CONFIG REQUIRED)
   find_package(reproc++ CONFIG REQUIRED)
 
-  # set up GoogleTest
-  enable_testing()
-
   add_executable(
     iggy_cpp_test
 
@@ -24,7 +12,8 @@ if(BUILD_TESTS)
     iggy_cpp_test
 
     iggy
-    GTest::gtest_main
+    Catch2::Catch2
+    Catch2::Catch2WithMain
     libuv::uv_a
     reproc++
     unofficial-sodium::sodium
@@ -42,12 +31,10 @@ if(BUILD_TESTS)
     PRIVATE
 
     iggy
-    GTest::gtest_main
+    Catch2::Catch2
+    Catch2::Catch2WithMain
     libuv::uv_a
     reproc++
     unofficial-sodium::sodium
   )
-
-  include(GoogleTest)
-  gtest_discover_tests(iggy_cpp_test)
 endif()

tests/e2e_testutils.cc

@@ -1,9 +1,11 @@
 #include "e2e_testutils.h"
 #include <chrono>
 #include <stdexcept>
+#include <string>
 #include <thread>
+#include <vector>
 
-void DockerTest::SetUp() {
+IggyRunner::IggyRunner() {
     // start the Docker process with stdout redirected to parent process
     std::vector<std::string> arguments = {"docker", "run", "-d", "--name", "iggy_test", "iggyrs/iggy:latest"};
     reproc::options options;
@@ -17,7 +19,7 @@ void DockerTest::SetUp() {
     std::this_thread::sleep_for(std::chrono::seconds(5));
 }
 
-void DockerTest::TearDown() {
+IggyRunner::~IggyRunner() {
     // stop the Docker process
     process.stop(reproc::stop_actions{{reproc::stop::terminate, reproc::milliseconds(5000)},
                                       {reproc::stop::kill, reproc::milliseconds(2000)},
@@ -28,4 +30,4 @@ void DockerTest::TearDown() {
     std::vector<std::string> remove_arguments = {"docker", "rm", "-f", "iggy_test"};
     remove_process.start(remove_arguments);
     remove_process.wait(reproc::milliseconds(5000));
-}
+}

tests/e2e_testutils.h

@@ -1,20 +1,18 @@
 #pragma once
-#include <gtest/gtest.h>
 #include <reproc++/reproc.hpp>
 
 /**
- * @class DockerTest
- * @brief GoogleTest fixture that starts and stops a Docker container for each test.
+ * @brief Test fixture that starts and stops a Docker container for each test.
  *
  * This test fixture is meant for use in end-to-end (E2E) tests for the Iggy C++ client.
  * It will start up the latest Iggy server inside a Docker container, allow you to
  * interact with it, then stop and remove the container in the TearDown() method.
  */
-class DockerTest : public ::testing::Test {
-protected:
+class IggyRunner {
+private:
     reproc::process process;
 
-    void SetUp() override;
-
-    void TearDown() override;
+public:
+    IggyRunner();
+    ~IggyRunner();
 };

tests/model_test.cc

@@ -1,11 +1,8 @@
-#include <gtest/gtest.h>
+#define CATCH_CONFIG_MAIN
+#include <catch.hpp>
 #include "../sdk/model.h"
 
-TEST(ModelTest, DefaultConstructor) {
-    // Create a Message object using the default constructor
+TEST_CASE("simple test for model objects", "[model]") {
     iggy::model::system::Stats stats;
-
-    // Perform assertions to verify the expected behavior
-    // For example, you can check if the message object is not null
-    ASSERT_NE(nullptr, &stats);
+    REQUIRE(&stats != nullptr);
 }

tests/ping_cmd_test.cc

@@ -1,7 +1,11 @@
+#include <catch.hpp>
 #include "e2e_testutils.h"
 #include "../sdk/client.h"
 
-TEST_F(DockerTest, BinaryPing) {
+TEST_CASE("E2E test for ping command", "[ping]") {
+    // Start the Docker container; shuts down when this object goes out of scope
+    IggyRunner runner;
+
     // Create a client object with all defaults
     iggy::client::Options options;
     iggy::client::Client client(options);

vcpkg.json

@@ -1,6 +1,7 @@
 {
   "dependencies": [
     "ada-url",
+    "catch2",
     "icu",
     "libsodium",
     "libuv",