closes #164

Collection error incorrectly deleted unstable tests completely, so they were not executed on next runs at all.

setup.py

@@ -8,7 +8,7 @@
     name="pytest-testmon",
     description="selects tests affected by changed files and methods",
     long_description=long_description,
-    version="1.1.0",
+    version="1.1.1",
     license="AGPL",
     platforms=["linux", "osx", "win32"],
     packages=[

test/test_testmon.py

@@ -1270,6 +1270,49 @@ def test_2():
         )
 
 
+class TestPytestCollectionPhase:
+    def test_sync_after_collectionerror(self, testdir):
+        testdir.makepyfile(
+            test_a="""
+                def test_0():
+                    pass
+                
+                def test_2():
+                    pass
+            """
+        )
+        testdir.runpytest_inprocess(
+            "--testmon",
+        )
+        testdir.makepyfile(
+            test_a="""
+                def test_0():
+                    pass
+                
+                def test_2():
+                    try:
+            """
+        )
+        testdir.runpytest_inprocess(
+            "--testmon",
+        )
+        testdir.makepyfile(
+            test_a="""
+                def test_0():
+                    pass
+                
+                def test_2():
+                    print(1)
+            """
+        )
+        result = testdir.runpytest_inprocess("--testmon", "-v")
+        result.stdout.fnmatch_lines(
+            [
+                "*test_2 PASSED*",
+            ]
+        )
+
+
 class TestmonCollect:
     def test_failed_setup_phase(self, testdir):
         testdir.makepyfile(

testmon/pytest_testmon.py

@@ -241,7 +241,7 @@ def pytest_pycollect_makeitem(self, collector, name, obj):
 
     def pytest_collection_modifyitems(self, session, config, items):
         _, should_collect, should_select = config.testmon_config
-        if should_select or should_collect:
+        if should_collect and not session.testsfailed:
             config.testmon_data.sync_db_fs_nodes(retain=set(self.raw_nodeids))
 
     @pytest.hookimpl(hookwrapper=True)