New test case

lib/test/test_client.cpp

@@ -0,0 +1,28 @@
+#include "gtest/gtest.h"
+#include "../src/H5Writer.hpp"
+using namespace std;
+
+TEST(H5Writer, get_h5_writer)
+{
+    auto dummy_writer = get_h5_writer("/dev/null");
+    EXPECT_TRUE(dynamic_cast<DummyH5Writer*>(dummy_writer.get()));
+
+    auto real_writer = get_h5_writer("real_file.h5");
+    EXPECT_FALSE(dynamic_cast<DummyH5Writer*>(real_writer.get()));
+}
+
+TEST(H5Writer, DummyH5Writer)
+{
+    DummyH5Writer dummy_writer;
+
+    EXPECT_FALSE(dummy_writer.is_file_open());
+
+    EXPECT_NO_THROW(dummy_writer.close_file());
+
+    EXPECT_THROW(dummy_writer.get_h5_file(), runtime_error);
+
+    unique_ptr<char> buffer(new char[1]);
+    vector<size_t> shape = {1};
+
+    EXPECT_NO_THROW(dummy_writer.write_data("does not matter", 0, buffer.get(), shape, 0, "nop", "nop"));
+}