Test: Add tests for libcurl

3 files changed, 142 insertions, 1 deletions

diff --git a/test/utils/cpp/TARGETS b/test/utils/cpp/TARGETS
index 113d6d10..48676a54 100644
--- a/test/utils/cpp/TARGETS
+++ b/test/utils/cpp/TARGETS
@@ -9,5 +9,26 @@
     ]
   , "stage": ["test", "utils", "cpp"]
   }
-, "TESTS": {"type": "install", "tainted": ["test"], "deps": ["path"]}
+, "curl_usage_install":
+  { "type": ["@", "rules", "CC", "binary"]
+  , "tainted": ["test"]
+  , "name": ["curl_usage"]
+  , "srcs": ["curl_usage.test.cpp"]
+  , "private-deps":
+    [ ["@", "catch2", "", "catch2"]
+    , ["test", "catch-main"]
+    , ["src/utils/cpp", "curl_context"]
+    , ["src/utils/cpp", "curl_easy_handle"]
+    , ["src/buildtool/file_system", "file_system_manager"]
+    ]
+  , "stage": ["test", "utils", "cpp"]
+  }
+, "curl_usage_test":
+  { "type": ["@", "rules", "shell/test", "script"]
+  , "name": ["curl_usage_test"]
+  , "test": ["curl_usage_test.sh"]
+  , "deps": [["test/utils", "test_utils_install"], "curl_usage_install"]
+  }
+, "TESTS":
+  {"type": "install", "tainted": ["test"], "deps": ["path", "curl_usage_test"]}
 }
diff --git a/test/utils/cpp/curl_usage.test.cpp b/test/utils/cpp/curl_usage.test.cpp
new file mode 100644
index 00000000..dc6666d4
--- /dev/null
+++ b/test/utils/cpp/curl_usage.test.cpp
@@ -0,0 +1,60 @@
+// Copyright 2022 Huawei Cloud Computing Technology Co., Ltd.
+//
+// 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
+//
+//     http://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 "catch2/catch.hpp"
+#include "src/buildtool/file_system/file_system_manager.hpp"
+#include "src/utils/cpp/curl_context.hpp"
+#include "src/utils/cpp/curl_easy_handle.hpp"
+
+// The caller of this test needs to make sure the port is given as content of
+// the file "port.txt" in the directory where this test is run
+[[nodiscard]] auto getPort() noexcept -> std::string {
+    // read file where port has to be given
+    auto port = FileSystemManager::ReadFile(std::filesystem::path("port.txt"));
+    REQUIRE(port);
+    // strip any end terminator
+    std::erase_if(*port, [](auto ch) { return (ch == '\n' or ch == '\r'); });
+    return *port;
+}
+
+TEST_CASE("Curl context", "[curl_context]") {
+    CurlContext curl_context{};
+}
+
+TEST_CASE("Curl easy handle", "[curl_easy_handle]") {
+    auto kServerUrl = std::string("http://127.0.0.1:") + getPort() +
+                      std::string("/test_file.txt");
+    auto kTargetDir =
+        std::filesystem::path(std::getenv("TEST_TMPDIR")) / "target_dir";
+
+    // make target dir
+    CHECK(FileSystemManager::CreateDirectory(kTargetDir));
+    // create handle
+    auto curl_handle = CurlEasyHandle::Create();
+    REQUIRE(curl_handle);
+
+    SECTION("Curl download to file") {
+        // download test file from local HTTP server into new location
+        auto file_path = kTargetDir / "test_file.txt";
+        REQUIRE(curl_handle->DownloadToFile(kServerUrl, file_path) == 0);
+        REQUIRE(FileSystemManager::IsFile(file_path));
+    }
+
+    SECTION("Curl download to string") {
+        // download test file from local HTTP server into string
+        auto content = curl_handle->DownloadToString(kServerUrl);
+        REQUIRE(content);
+        REQUIRE(*content == "test\n");
+    }
+}
diff --git a/test/utils/cpp/curl_usage_test.sh b/test/utils/cpp/curl_usage_test.sh
new file mode 100644
index 00000000..3ff874cb
--- /dev/null
+++ b/test/utils/cpp/curl_usage_test.sh
@@ -0,0 +1,60 @@
+#!/bin/sh
+# Copyright 2022 Huawei Cloud Computing Technology Co., Ltd.
+#
+# 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
+#
+#     http://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.
+
+set -eu
+
+# cleanup of http.server; pass server_pid as arg
+server_cleanup() {
+  echo "Shut down HTTP server"
+  # send SIGTERM
+  kill ${1} & res=$!
+  wait ${res}
+  echo "done"
+}
+
+readonly ROOT=`pwd`
+
+readonly SERVER_ROOT="${TEST_TMPDIR}/server-root"
+
+echo "Create test file"
+mkdir -p "${SERVER_ROOT}"
+cd "${SERVER_ROOT}"
+cat > test_file.txt <<EOF
+test
+EOF
+
+echo "Publish test file as local HTTP server"
+# define location to store port number
+port_file="${ROOT}/port.txt"
+# start Python server as remote
+python3 -u "${ROOT}/utils/run_test_server.py" >"${port_file}" & server_pid=$!
+sleep 1s  # give some time to set up properly
+# set up cleanup of http server
+trap "server_cleanup ${server_pid}" INT TERM EXIT
+
+cd "${ROOT}"
+
+echo "Run curl usage test"
+error=false
+test/utils/cpp/curl_usage & res=$!
+wait $res
+if [ $? -ne 0 ]; then
+    error=true
+fi
+
+# check test status
+if [ $error = true ]; then
+    exit 1
+fi