Python: Add testcases for py/import-own-module

You can try out:

python2 -c "import pkg_ok; print(pkg_ok.foo1); print(pkg_ok.foo2); print(pkg_ok.foo3); print(pkg_ok.foo4); print(pkg_ok.foo5); print(pkg_ok.Foo3); print(pkg_ok.Foo5); print(pkg_ok.pkg_ok)"

python3 -c "import pkg_ok; print(pkg_ok.foo1); print(pkg_ok.foo2); print(pkg_ok.foo3); print(pkg_ok.foo4); print(pkg_ok.foo5); print(pkg_ok.Foo3); print(pkg_ok.Foo5); print(pkg_ok.pkg_ok)"

Author: RasmusWL

python/ql/test/query-tests/Imports/PyCheckerTests/ImportandImportFrom.expected

@@ -1 +1,2 @@
 | imports_test.py:4:1:4:19 | Import | Module 'test_module2' is imported with both 'import' and 'import from' |
+| pkg_notok/__init__.py:4:1:4:16 | Import | Module 'pkg_notok' is imported with both 'import' and 'import from' |

python/ql/test/query-tests/Imports/PyCheckerTests/ModuleImportsItself.expected

@@ -1 +1,9 @@
 | imports_test.py:8:1:8:19 | Import | The module 'imports_test' imports itself. |
+| pkg_notok/__init__.py:4:1:4:16 | Import | The module 'pkg_notok' imports itself. |
+| pkg_notok/__init__.py:6:1:6:25 | Import | The module 'pkg_notok' imports itself. |
+| pkg_notok/__init__.py:7:1:7:37 | Import | The module 'pkg_notok' imports itself. |
+| pkg_ok/__init__.py:2:1:2:18 | Import | The module 'pkg_ok' imports itself. |
+| pkg_ok/__init__.py:4:1:4:23 | Import | The module 'pkg_ok' imports itself. |
+| pkg_ok/__init__.py:5:1:5:28 | Import | The module 'pkg_ok' imports itself. |
+| pkg_ok/__init__.py:7:1:7:18 | Import | The module 'pkg_ok' imports itself. |
+| pkg_ok/__init__.py:8:1:8:22 | Import | The module 'pkg_ok' imports itself. |

python/ql/test/query-tests/Imports/PyCheckerTests/imports_test.py

@@ -7,3 +7,5 @@
 #Module imports itself
 import imports_test
 
+import pkg_ok
+import pkg_notok

python/ql/test/query-tests/Imports/PyCheckerTests/pkg_notok/__init__.py

@@ -0,0 +1,8 @@
+class Foo(object):
+    pass
+
+import pkg_notok
+
+from pkg_notok import Foo
+from pkg_notok import Foo as NotOkFoo
+from pkg_notok import * # TODO: TN

python/ql/test/query-tests/Imports/PyCheckerTests/pkg_ok/__init__.py

@@ -0,0 +1,8 @@
+# This import makes `pkg_ok` available, but also `foo1` (surprising as it may be)
+import pkg_ok.foo1 # TODO: FP
+
+from pkg_ok import foo2 # TODO: FP
+from pkg_ok.foo3 import Foo3 # TODO: FP
+
+from . import foo4 # TODO: FP
+from .foo5 import Foo5 # TODO: FP

python/ql/test/query-tests/Imports/PyCheckerTests/pkg_ok/foo1.py

@@ -0,0 +1,2 @@
+class Foo1():
+    pass

python/ql/test/query-tests/Imports/PyCheckerTests/pkg_ok/foo2.py

@@ -0,0 +1,2 @@
+class Foo2():
+    pass

python/ql/test/query-tests/Imports/PyCheckerTests/pkg_ok/foo3.py

@@ -0,0 +1,2 @@
+class Foo3():
+    pass

python/ql/test/query-tests/Imports/PyCheckerTests/pkg_ok/foo4.py

@@ -0,0 +1,2 @@
+class Foo4():
+    pass

python/ql/test/query-tests/Imports/PyCheckerTests/pkg_ok/foo5.py

@@ -0,0 +1,2 @@
+class Foo5():
+    pass