Add source-aware UART log replay

tests/main_window_tests.cpp

@@ -7,15 +7,19 @@
 #include <QCheckBox>
 #include <QComboBox>
 #include <QDoubleSpinBox>
+#include <QDir>
+#include <QFile>
 #include <QLabel>
 #include <QLineEdit>
 #include <QMetaObject>
 #include <QSpinBox>
 #include <QPushButton>
+#include <QRegularExpression>
 #include <QTableView>
 #include <QTabWidget>
 #include <QSplitter>
 #include <QTemporaryFile>
+#include <QTemporaryDir>
 
 #include <cassert>
 #include <cmath>
@@ -45,6 +49,32 @@ int main(int argc, char **argv)
     MainWindow window;
     qunsetenv("LOCATION_PLOTTER_PORT");
 
+    {
+        QTemporaryDir uartLogDirectory;
+        assert(uartLogDirectory.isValid());
+        qputenv("LOCATION_PLOTTER_UART_LOG_DIR", uartLogDirectory.path().toUtf8());
+        bool loggingStarted = false;
+        assert(QMetaObject::invokeMethod(
+            &window, "startUartLogging", Qt::DirectConnection,
+            Q_RETURN_ARG(bool, loggingStarted),
+            Q_ARG(QString, QStringLiteral("/dev/test-uart")), Q_ARG(int, 460800)));
+        assert(loggingStarted);
+        sendLine(window, QStringLiteral("raw uart test line"));
+        assert(QMetaObject::invokeMethod(&window, "stopUartLogging", Qt::DirectConnection));
+        qunsetenv("LOCATION_PLOTTER_UART_LOG_DIR");
+
+        const QStringList logFiles = QDir(uartLogDirectory.path()).entryList(
+            {QStringLiteral("uart_*.log")}, QDir::Files);
+        assert(logFiles.size() == 1);
+        QFile logFile(QDir(uartLogDirectory.path()).filePath(logFiles.constFirst()));
+        assert(logFile.open(QIODevice::ReadOnly | QIODevice::Text));
+        const QString contents = QString::fromUtf8(logFile.readAll());
+        assert(contents.contains(QStringLiteral("[SESSION START] port=/dev/test-uart baud=460800")));
+        assert(contents.contains(QRegularExpression(
+            QStringLiteral(R"(\[\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3}\] raw uart test line)"))));
+        assert(contents.contains(QStringLiteral("[SESSION END]")));
+    }
+
     auto *table = window.findChild<QTableView *>();
     auto *referenceLatInput = window.findChild<QLineEdit *>(QStringLiteral("referenceLatInput"));
     auto *referenceLonInput = window.findChild<QLineEdit *>(QStringLiteral("referenceLonInput"));