avocado.core.exceptions: Introducing TestInterruptError

Add a special exception for when tests are interrupted
by Ctrl + C, and the required mapping in status.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado/core/exceptions.py

@@ -83,6 +83,14 @@ class TestTimeoutError(TestBaseException):
     status = "ERROR"
 
 
+class TestInterruptedError(TestBaseException):
+
+    """
+    Indicates that the test was interrupted by the user (Ctrl+C)
+    """
+    status = "INTERRUPTED"
+
+
 class TestAbortError(TestBaseException):
 
     """

avocado/core/status.py

@@ -25,7 +25,8 @@ mapping = {"TEST_NA": True,
            "START": True,
            "ALERT": False,
            "RUNNING": False,
-           "NOSTATUS": False}
+           "NOSTATUS": False,
+           "INTERRUPTED": False}
 
 feedback = {
     # Test did not advertise current status, but process running the test is