add some unit tests

6 files changed, 166 insertions, 6 deletions

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index ac3e8b3..c4406c8 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -2,16 +2,16 @@ add_executable(call_stack call_stack.cpp)
 target_link_libraries(call_stack PRIVATE pdb_repo)
 target_link_libraries(call_stack PRIVATE Boost::nowide)
 
-install(TARGETS call_stack RUNTIME DESTINATION bin)
+install(TARGETS call_stack RUNTIME DESTINATION bin/test)
 if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
-    install(FILES "$<TARGET_PDB_FILE:call_stack>" DESTINATION bin OPTIONAL)
+    install(FILES "$<TARGET_PDB_FILE:call_stack>" DESTINATION bin/test OPTIONAL)
 endif()
 
-set(CC_STATIC_RUNTIME OFF) # Reduce the number of symbols in this test utility
-
 add_executable(symbols symbols.cpp)
 
-install(TARGETS symbols RUNTIME DESTINATION bin)
+install(TARGETS symbols RUNTIME DESTINATION bin/test)
 if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
-    install(FILES "$<TARGET_PDB_FILE:symbols>" DESTINATION bin OPTIONAL)
+    install(FILES "$<TARGET_PDB_FILE:symbols>" DESTINATION bin/test OPTIONAL)
 endif()
+
+add_subdirectory(unit_tests)
diff --git a/test/unit_tests/CMakeLists.txt b/test/unit_tests/CMakeLists.txt
new file mode 100644
index 0000000..e7362e1
--- /dev/null
+++ b/test/unit_tests/CMakeLists.txt
@@ -0,0 +1,10 @@
+find_package(Boost REQUIRED COMPONENTS filesystem unit_test_framework)
+
+add_executable(unit_tests main.cpp dbghelp.cpp error.cpp)
+target_link_libraries(unit_tests PRIVATE pdb_repo)
+target_link_libraries(unit_tests PRIVATE Boost::disable_autolinking Boost::filesystem Boost::nowide Boost::unit_test_framework)
+
+install(TARGETS unit_tests RUNTIME DESTINATION bin/test)
+if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+    install(FILES "$<TARGET_PDB_FILE:unit_tests>" DESTINATION bin/test OPTIONAL)
+endif()
diff --git a/test/unit_tests/dbghelp.cpp b/test/unit_tests/dbghelp.cpp
new file mode 100644
index 0000000..86cf1ff
--- /dev/null
+++ b/test/unit_tests/dbghelp.cpp
@@ -0,0 +1,95 @@
+#include "utils.hpp"
+
+#include <pdb/all.hpp>
+
+#include <boost/filesystem.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include <iterator>
+#include <string>
+#include <unordered_set>
+#include <utility>
+
+namespace {
+
+class DbgHelp {
+public:
+    DbgHelp() : dbghelp{pdb::DbgHelp::post_mortem()} { BOOST_TEST_MESSAGE("Initializing DbgHelp"); }
+
+    ~DbgHelp() { BOOST_TEST_MESSAGE("Cleaning up DbgHelp"); }
+
+    const pdb::DbgHelp dbghelp;
+
+private:
+    DbgHelp(const DbgHelp&) = delete;
+    DbgHelp& operator=(const DbgHelp&) = delete;
+};
+
+template <typename T>
+using Set = std::unordered_set<T>;
+
+template <typename T>
+Set<T> join(Set<T>&& xs, Set<T>&& ys) {
+    xs.insert(std::make_move_iterator(ys.begin()), std::make_move_iterator(ys.end()));
+    return std::move(xs);
+}
+
+class DbgHelpWithSymbols : public DbgHelp {
+public:
+    DbgHelpWithSymbols() { load_symbols_pdb(); }
+
+    static const std::string& get_namespace() {
+        static const std::string name{"foobar_ns"};
+        return name;
+    }
+
+    typedef std::unordered_set<std::string> SymbolList;
+
+    static SymbolList expected_functions() { return make_qualified({"foo", "bar", "baz"}); }
+
+    static SymbolList expected_variables() { return make_qualified({"exit_code"}); }
+
+    static SymbolList expected_symbols() {
+        return join(expected_functions(), expected_variables());
+    }
+
+private:
+    static SymbolList make_qualified(SymbolList&& plain) {
+        SymbolList qualified;
+        for (auto&& name : plain) {
+            qualified.emplace(get_namespace() + "::" + std::move(name));
+        }
+        return qualified;
+    }
+
+    void load_symbols_pdb() {
+        const auto pdb_path = get_symbols_pdb_path().string();
+        BOOST_TEST_MESSAGE("Loading PDB: " << pdb_path);
+        dbghelp.load_pdb(pdb_path);
+    }
+
+    static boost::filesystem::path get_symbols_pdb_path() {
+        return Paths::get().exe_dir / "symbols.pdb";
+    }
+};
+
+} // namespace
+
+BOOST_AUTO_TEST_SUITE(dbghelp_tests)
+BOOST_FIXTURE_TEST_SUITE(enum_symbols_tests, DbgHelpWithSymbols)
+
+BOOST_AUTO_TEST_CASE(basic) {
+    // Symbols can be enumerated, and all the expected symbols are there.
+    auto all_symbols = expected_symbols();
+    const auto callback = [&all_symbols](const pdb::SymbolInfo& symbol) {
+        const auto name = symbol.get_name();
+        all_symbols.erase(name);
+    };
+    dbghelp.enum_symbols(callback);
+    for (const auto& missing : all_symbols) {
+        BOOST_TEST(false, "Symbol wasn't enumerated: " << missing);
+    }
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+BOOST_AUTO_TEST_SUITE_END()
diff --git a/test/unit_tests/error.cpp b/test/unit_tests/error.cpp
new file mode 100644
index 0000000..10eb8b4
--- /dev/null
+++ b/test/unit_tests/error.cpp
@@ -0,0 +1,16 @@
+#include <pdb/all.hpp>
+
+#include <boost/test/unit_test.hpp>
+
+#include <windows.h>
+
+#include <string>
+
+BOOST_AUTO_TEST_SUITE(error_tests)
+
+BOOST_AUTO_TEST_CASE(file_not_found) {
+    const std::string actual{pdb::error::windows(ERROR_FILE_NOT_FOUND).what()};
+    BOOST_TEST(actual == "The system cannot find the file specified.");
+}
+
+BOOST_AUTO_TEST_SUITE_END()
diff --git a/test/unit_tests/main.cpp b/test/unit_tests/main.cpp
new file mode 100644
index 0000000..937bea3
--- /dev/null
+++ b/test/unit_tests/main.cpp
@@ -0,0 +1,2 @@
+#define BOOST_TEST_MODULE pdb_repo tests
+#include <boost/test/unit_test.hpp>
diff --git a/test/unit_tests/utils.hpp b/test/unit_tests/utils.hpp
new file mode 100644
index 0000000..561ca4d
--- /dev/null
+++ b/test/unit_tests/utils.hpp
@@ -0,0 +1,37 @@
+#pragma once
+
+#include <boost/filesystem.hpp>
+#include <boost/nowide/filesystem.hpp>
+#include <boost/test/unit_test.hpp>
+
+using path = boost::filesystem::path;
+
+class FixFilesystem {
+public:
+    FixFilesystem() { boost::nowide::nowide_filesystem(); }
+};
+
+class Paths {
+public:
+    typedef boost::filesystem::path path;
+
+    static Paths& get() {
+        static FixFilesystem fix_filesystem;
+        static Paths instance;
+        return instance;
+    }
+
+    Paths() : exe_path{get_executable_path()}, exe_dir{exe_path.parent_path()} {}
+
+    const path exe_path;
+    const path exe_dir;
+
+private:
+    static path get_executable_path() {
+        const auto argv0 = boost::unit_test::framework::master_test_suite().argv[0];
+        return boost::filesystem::system_complete(argv0);
+    }
+
+    Paths(const Paths&) = delete;
+    Paths& operator=(const Paths&) = delete;
+};