Add a test case for python exception exit status

mesonbuild/interpreter.py

@@ -1470,6 +1470,7 @@ class Interpreter(InterpreterBase):
                            'disabler': self.func_disabler,
                            'environment': self.func_environment,
                            'error': self.func_error,
+                           'exception': self.func_exception,
                            'executable': self.func_executable,
                            'generator': self.func_generator,
                            'gettext': self.func_gettext,
@@ -1983,6 +1984,11 @@ to directly access options of other subprojects.''')
         self.validate_arguments(args, 1, [str])
         raise InterpreterException('Error encountered: ' + args[0])
 
+    @noKwargs
+    def func_exception(self, node, args, kwargs):
+        self.validate_arguments(args, 0, [])
+        raise Exception()
+
     def detect_compilers(self, lang, need_cross_compiler):
         cross_comp = None
         if lang == 'c':

run_unittests.py

@@ -1933,6 +1933,16 @@ class FailureTests(BasePlatformTests):
         self.assertRegex(out, r'Also couldn\'t find a fallback subproject in '
                          '.*subprojects.*failingsubproj.*for the dependency.*somedep')
 
+    def test_exception_exit_status(self):
+        '''
+        Test exit status on python exception
+        '''
+        tdir = os.path.join(self.unit_test_dir, '21 exit status')
+        with self.assertRaises(subprocess.CalledProcessError) as cm:
+            self.init(tdir, inprocess=False)
+        self.assertEqual(cm.exception.returncode, 2)
+        self.wipe()
+
 
 class WindowsTests(BasePlatformTests):
     '''

test cases/unit/21 exit status/meson.build

@@ -0,0 +1,2 @@
+project('exit status')
+exception()