common: add DeviceIDToString helper

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

2 files changed, 22 insertions, 0 deletions

diff --git a/tests/common/helpers.cpp b/tests/common/helpers.cpp
index e7ef3b4..f48a134 100644
--- a/tests/common/helpers.cpp
+++ b/tests/common/helpers.cpp
@@ -3,6 +3,8 @@
 #endif
 #include "helpers.h"
 
+#include <sstream>
+
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
 #include <X11/extensions/XInput2.h>
@@ -167,3 +169,14 @@ XErrorEvent * ReleaseErrorTrap(Display *dpy) {
     trap_state.is_trapping = False;
     return error;
 }
+
+std::string DeviceIDToString(int deviceid) {
+    switch (deviceid) {
+        case XIAllDevices:
+            return "XIAllDevices";
+        case XIAllMasterDevices:
+            return "XIAllMasterDevices";
+        default:
+            return static_cast<std::ostringstream*>(&(std::ostringstream() << deviceid) )->str();
+    }
+}
diff --git a/tests/common/helpers.h b/tests/common/helpers.h
index 7056f17..43f7c76 100644
--- a/tests/common/helpers.h
+++ b/tests/common/helpers.h
@@ -101,5 +101,14 @@ XErrorEvent * ReleaseErrorTrap(Display *dpy);
 #define ASSERT_NO_ERROR(err)                            \
     ASSERT_TRUE(err == NULL) << "Expected no error"
 
+
+/**
+ * Does not much for normal device IDs, but returns
+ * XIAllDevices/XIAllMasterDevices where applicable.
+ *
+ * @return string representing this deviceID.
+ */
+std::string DeviceIDToString(int deviceid);
+
 #endif