[test] add partial message matching support to FixtureLog

test/src/mbgl/test/fixture_log_observer.cpp

@@ -11,8 +11,9 @@ FixtureLog::Message::Message(EventSeverity severity_,
     : severity(severity_), event(event_), code(code_), msg(std::move(msg_)) {
 }
 
-bool FixtureLog::Message::operator==(const Message& rhs) const {
-    return severity == rhs.severity && event == rhs.event && code == rhs.code && msg == rhs.msg;
+bool FixtureLog::Message::matches(const Message& rhs, bool substring) const {
+    return severity == rhs.severity && event == rhs.event && code == rhs.code &&
+           (substring ? msg.find(rhs.msg) != std::string::npos : msg == rhs.msg);
 }
 
 FixtureLog::Observer::Observer(FixtureLog* log_) : log(log_) {
@@ -42,12 +43,12 @@ bool FixtureLog::Observer::empty() const {
     return messages.empty();
 }
 
-size_t FixtureLog::Observer::count(const Message& message) const {
+size_t FixtureLog::Observer::count(const Message& message, bool substring) const {
     std::lock_guard<std::mutex> lock(messagesMutex);
 
     size_t message_count = 0;
     for (const auto& msg : messages) {
-        if (msg == message) {
+        if (msg.matches(message, substring)) {
             message_count++;
             msg.checked = true;
         }
@@ -63,8 +64,12 @@ bool FixtureLog::empty() const {
     return observer ? observer->empty() : true;
 }
 
-size_t FixtureLog::count(const FixtureLog::Message& message) const {
-    return observer ? observer->count(message) : 0;
+size_t FixtureLog::count(const FixtureLog::Message& message, bool substring) const {
+    return observer ? observer->count(message, substring) : 0;
+}
+
+size_t FixtureLog::uncheckedCount() const {
+    return observer ? observer->uncheckedCount() : 0;
 }
 
 FixtureLog::~FixtureLog() {
@@ -86,6 +91,18 @@ std::vector<FixtureLog::Message> FixtureLogObserver::unchecked() const {
     return unchecked_messages;
 }
 
+size_t FixtureLogObserver::uncheckedCount() const {
+    std::lock_guard<std::mutex> lock(messagesMutex);
+
+    size_t result = 0;
+    for (const auto& msg : messages) {
+        if (!msg.checked) {
+            result++;
+        }
+    }
+    return result;
+}
+
 ::std::ostream& operator<<(::std::ostream& os, const std::vector<FixtureLog::Message>& messages) {
     for (const auto& message : messages) {
         os << "- " << message;

test/src/mbgl/test/fixture_log_observer.hpp

@@ -15,7 +15,7 @@ public:
         Message() = default;
         Message(EventSeverity severity_, Event event_, int64_t code_, std::string msg_);
 
-        bool operator==(const Message& rhs) const;
+        bool matches(const Message& rhs, bool substring = false) const;
 
         const EventSeverity severity {};
         const Event event {};
@@ -39,7 +39,8 @@ public:
                               const std::string& msg) override;
 
         bool empty() const;
-        size_t count(const Message& message) const;
+        size_t uncheckedCount() const;
+        size_t count(const Message& message, bool substring = false) const;
         std::vector<Message> unchecked() const;
 
     private:
@@ -51,7 +52,8 @@ public:
     FixtureLog();
 
     bool empty() const;
-    size_t count(const Message& message) const;
+    size_t uncheckedCount() const;
+    size_t count(const Message& message, bool substring = false) const;
 
     ~FixtureLog();