Add more GZIP deflate unit tests

benchmark/gzip.cc

@@ -5,6 +5,10 @@
 
 #include <cstdint>    // std::uint8_t
 #include <filesystem> // std::filesystem
+#include <ios>        // std::streamsize
+#include <istream>    // std::istream
+#include <sstream>    // std::istringstream
+#include <string>     // std::string
 
 static void
 // NOLINTNEXTLINE(readability-identifier-naming)
@@ -39,6 +43,55 @@ GZIP_Decompress_ISO_Language_Set_3_Locations(benchmark::State &state) {
   }
 }
 
+static void
+// NOLINTNEXTLINE(readability-identifier-naming)
+GZIP_Decompress_Default_Level_ISO_Language_Set_3_Locations(
+    benchmark::State &state) {
+  const sourcemeta::core::FileView view{
+      std::filesystem::path{CURRENT_DIRECTORY} / "files" /
+      "iso_language_2023_set_3_locations.json.gz"};
+  const auto contents{
+      sourcemeta::core::gunzip(view.as<std::uint8_t>(), view.size())};
+  const auto compressed{sourcemeta::core::gzip(
+      reinterpret_cast<const std::uint8_t *>(contents.data()),
+      contents.size())};
+
+  for (auto iteration : state) {
+    auto result{sourcemeta::core::gunzip(
+        reinterpret_cast<const std::uint8_t *>(compressed.data()),
+        compressed.size(), contents.size())};
+    benchmark::DoNotOptimize(result);
+  }
+}
+
+static void
+// NOLINTNEXTLINE(readability-identifier-naming)
+GZIP_Decompress_Stream_Default_Level_ISO_Language_Set_3_Locations(
+    benchmark::State &state) {
+  const sourcemeta::core::FileView view{
+      std::filesystem::path{CURRENT_DIRECTORY} / "files" /
+      "iso_language_2023_set_3_locations.json.gz"};
+  const auto contents{
+      sourcemeta::core::gunzip(view.as<std::uint8_t>(), view.size())};
+  std::istringstream source{sourcemeta::core::gzip(
+      reinterpret_cast<const std::uint8_t *>(contents.data()),
+      contents.size())};
+
+  for (auto iteration : state) {
+    source.clear();
+    source.seekg(0);
+    sourcemeta::core::GZIPStreamBuffer buffer{source};
+    std::istream decompressed{&buffer};
+    std::string result;
+    result.resize(contents.size());
+    decompressed.read(result.data(),
+                      static_cast<std::streamsize>(contents.size()));
+    // Reaching the end of the stream validates the member trailer
+    benchmark::DoNotOptimize(decompressed.peek());
+    benchmark::DoNotOptimize(result);
+  }
+}
+
 // NOLINTNEXTLINE(readability-identifier-naming)
 static void GZIP_Compress_ISO_Language_Set_3_Schema(benchmark::State &state) {
   const sourcemeta::core::FileView view{
@@ -72,5 +125,7 @@ static void GZIP_Decompress_ISO_Language_Set_3_Schema(benchmark::State &state) {
 
 BENCHMARK(GZIP_Compress_ISO_Language_Set_3_Locations);
 BENCHMARK(GZIP_Decompress_ISO_Language_Set_3_Locations);
+BENCHMARK(GZIP_Decompress_Default_Level_ISO_Language_Set_3_Locations);
+BENCHMARK(GZIP_Decompress_Stream_Default_Level_ISO_Language_Set_3_Locations);
 BENCHMARK(GZIP_Compress_ISO_Language_Set_3_Schema);
 BENCHMARK(GZIP_Decompress_ISO_Language_Set_3_Schema);

test/gzip/CMakeLists.txt

@@ -1,9 +1,8 @@
 sourcemeta_test(NAMESPACE sourcemeta PROJECT core NAME gzip
   SOURCES
     gzip_test.cc
+    gzip_error_test.cc
     gzip_streambuf_test.cc)
 
 target_link_libraries(sourcemeta_core_gzip_unit
   PRIVATE sourcemeta::core::gzip)
-target_link_libraries(sourcemeta_core_gzip_unit
-  PRIVATE sourcemeta::core::io)