Update signal test functions

Signed-off-by: Arkady Gilinsky <[email protected]>

Author: ark-g

tests/coveragetest.py

@@ -418,7 +418,11 @@ def run_command(self, cmd: str, *, status: int = 0) -> str:
 
         """
         actual_status, output = self.run_command_status(cmd)
-        assert actual_status == status
+        if actual_status > 128:
+            # Killed by signal, shell returns 128 + signal_num
+            assert actual_status == 128 + (-1 * status)
+        else:
+            assert actual_status == status
         return output
 
     def run_command_status(self, cmd: str) -> tuple[int, str]:

tests/test_process.py

@@ -731,7 +731,7 @@ def test_save_signal_usr1(self) -> None:
             print('Done and goodbye')
             """)
         covered_lines = 4
-        self.run_command(f"coverage run --save-signal USR1 {test_file}")
+        self.run_command(f"coverage run --save-signal USR1 {test_file}", status = -signal.SIGKILL)
         self.assert_exists(".coverage")
         data = coverage.CoverageData()
         data.read()
@@ -758,7 +758,7 @@ def test_save_signal_kill(self) -> None:
 
             print('Done and goodbye')
             """)
-        self.run_command(f"coverage run --save-signal USR1 {test_file}")
+        self.run_command(f"coverage run --save-signal USR1 {test_file}", status = -signal.SIGKILL)
         self.assert_doesnt_exist(".coverage")