diff --git a/tests/test_readers.cpp b/tests/test_readers.cpp
--- a/tests/test_readers.cpp
+++ b/tests/test_readers.cpp
@@ -26,6 +26,7 @@
 #include "binarystreamreader.h"
 #include "asciireader.h"
 #include "framedreader.h"
+#include "demoreader.h"
 
 #include "test_helpers.h"
 
@@ -165,6 +166,52 @@ TEST_CASE("FramedReader shouldn't read w
     REQUIRE(sink.totalFed == 0);
 }
 
+TEST_CASE("DemoReader doesn't have a settings widget", "[reader, demo]")
+{
+    QBuffer bufferDev;          // not actually used
+    DemoReader reader(&bufferDev);
+
+    REQUIRE(reader.settingsWidget() == NULL);
+}
+
+TEST_CASE("Generating data with DemoReader", "[reader, demo]")
+{
+    QBuffer bufferDev;          // not actually used
+    DemoReader demoReader(&bufferDev);
+    demoReader.enable(true);
+
+    TestSink sink;
+    demoReader.connectSink(&sink);
+    REQUIRE(sink._numChannels == 1);
+
+    demoReader.setNumOfChannels(3);
+    REQUIRE(sink._numChannels == 3);
+
+    // we need to wait somehow, we are not actually looking for signals
+    QSignalSpy spy(&bufferDev, SIGNAL(readyRead()));
+    REQUIRE_FALSE(spy.wait(1000)); // we need some time for demoreader to produce data
+    REQUIRE(sink.totalFed >= 9);
+}
+
+TEST_CASE("DemoReader shouldn't generate data when paused", "[reader, demo]")
+{
+    QBuffer bufferDev;          // not actually used
+    DemoReader demoReader(&bufferDev); // paused by default
+
+    TestSink sink;
+    demoReader.connectSink(&sink);
+    REQUIRE(sink._numChannels == 1);
+
+    demoReader.setNumOfChannels(3);
+    REQUIRE(sink._numChannels == 3);
+
+    // we need to wait somehow, we are not actually looking for signals
+    QSignalSpy spy(&bufferDev, SIGNAL(readyRead()));
+    REQUIRE_FALSE(spy.wait(1000)); // we need some time for demoreader to produce data
+    REQUIRE(sink.totalFed == 0);
+}
+
+
 // Note: this is added because `QApplication` must be created for widgets
 #include <QApplication>
 int main(int argc, char* argv[])