test that running infer deletes the previous infer-out folder

Reviewed By: martinoluca

Differential Revision: D3736634

fbshipit-source-id: 9fb0c80

infer/tests/build_systems/build_integration_tests.py

@@ -63,6 +63,7 @@ ALL_TESTS = [
     'cc1',
     'cmake',
     'componentkit',
+    'delete',
     'fail',
     'gradle',
     'javac',
@@ -522,6 +523,15 @@ class BuildIntegrationTest(unittest.TestCase):
              extra_check=pmd_check,
              available=lambda: has_lxml)
 
+    def test_infer_deletes_infer_out(self):
+        # Test that two consecutive analyses do not pollute each other:
+        # the expected results of running infer on hello.c then on
+        # hello2.c is that only the bug in hello2.c is reported.
+        test('delete', 'infer deletes infer-out',
+             CODETOANALYZE_DIR,
+             [{'compile': ['clang', '-c', 'hello.c']},
+              {'compile': ['clang', '-c', 'hello2.c']}])
+
 
 if __name__ == '__main__':
     # hackish capturing of the arguments after '--'

infer/tests/build_systems/expected_outputs/delete_report.json

@@ -0,0 +1,7 @@
+[
+  {
+    "bug_type": "NULL_DEREFERENCE",
+    "file": "hello2.c",
+    "procedure": "test2"
+  }
+]