rearrange tests and make more robust

test/fixtures/fixture_log.cpp

@@ -0,0 +1,96 @@
+#include "fixture_log.hpp"
+
+namespace mbgl {
+
+FixtureLogBackend::LogMessage::LogMessage(EventSeverity severity_, Event event_, int64_t code_,
+                                          const std::string &msg_)
+    : severity(severity_), event(event_), code(code_), msg(msg_) {
+}
+FixtureLogBackend::LogMessage::LogMessage(EventSeverity severity_, Event event_, int64_t code_)
+    : severity(severity_), event(event_), code(code_), msg() {
+}
+FixtureLogBackend::LogMessage::LogMessage(EventSeverity severity_, Event event_,
+                                          const std::string &msg_)
+    : severity(severity_), event(event_), code(), msg(msg_) {
+}
+
+FixtureLogBackend::LogMessage::LogMessage(EventSeverity severity_, Event event_)
+    : severity(severity_), event(event_), code(), msg() {
+}
+
+bool FixtureLogBackend::LogMessage::operator==(const LogMessage &rhs) const {
+    return (!severity || !rhs.severity || severity.get() == rhs.severity.get()) &&
+           (!event || !rhs.event || event.get() == rhs.event.get()) &&
+           (!code || !rhs.code || code.get() == rhs.code.get()) &&
+           (!msg || !rhs.msg || msg.get() == rhs.msg.get());
+}
+
+FixtureLogBackend::~FixtureLogBackend() {
+    std::cerr << unchecked();
+}
+
+void FixtureLogBackend::record(EventSeverity severity, Event event, const std::string &msg) {
+    messages.emplace_back(severity, event, msg);
+}
+
+void FixtureLogBackend::record(EventSeverity severity, Event event, const char *format, ...) {
+    va_list args;
+    va_start(args, format);
+    const size_t len = vsnprintf(NULL, 0, format, args);
+    va_end(args);
+    std::unique_ptr<char[]> buffer(new char[len + 1]);
+    va_start(args, format);
+    vsnprintf(buffer.get(), len + 1, format, args);
+    va_end(args);
+    messages.emplace_back(severity, event, std::string{ buffer.get(), len });
+}
+
+void FixtureLogBackend::record(EventSeverity severity, Event event, int64_t code) {
+    messages.emplace_back(severity, event, code);
+}
+
+void FixtureLogBackend::record(EventSeverity severity, Event event, int64_t code,
+                               const std::string &msg) {
+    messages.emplace_back(severity, event, code, msg);
+}
+
+size_t FixtureLogBackend::count(const LogMessage &message) const {
+    size_t message_count = 0;
+    for (const LogMessage &msg : messages) {
+        if (msg == message) {
+            message_count++;
+            msg.checked = true;
+        }
+    }
+    return message_count;
+}
+
+std::vector<FixtureLogBackend::LogMessage> FixtureLogBackend::unchecked() const {
+    std::vector<LogMessage> unchecked_messages;
+    for (const LogMessage &msg : messages) {
+        if (!msg.checked) {
+            unchecked_messages.push_back(msg);
+            msg.checked = true;
+        }
+    }
+    return unchecked_messages;
+}
+
+::std::ostream &operator<<(::std::ostream &os,
+                           const std::vector<FixtureLogBackend::LogMessage> &messages) {
+    for (const FixtureLogBackend::LogMessage &message : messages) {
+        os << "- " << message;
+    }
+    return os;
+}
+
+::std::ostream &operator<<(::std::ostream &os, const FixtureLogBackend::LogMessage &message) {
+    os << "[\"" << message.severity.get() << "\", \"" << message.event.get() << "\"";
+    if (message.code)
+        os << ", " << message.code.get();
+    if (message.msg)
+        os << ", \"" << message.msg.get() << "\"";
+    return os << "]" << std::endl;
+}
+
+}