Generate unit tests for Python (#580)

We move the generator for unit test code from individual SDK
repositories to the aas-core-codegen repository so that we can move
faster between the actual meta-model versions. In addition, we want to
decouple the generation of the SDK from the actual version.

Earlier, we could not do that as we kept most of the test data wrapped
into an AAS environment, so it did not fit the aas-core-codegen
principle to be agnostic of AAS. In the meantime, we generate the test
data per meta-model class, and not wrapped in Environment class, in
[aas-core-testdatagen], so now generating general unit tests is
possible.

[aas-core-testdatagen]: https://github.com/aas-core-works/aas-core-testdatagen

Author: mristin

.github/workflows/ci.yml

@@ -32,17 +32,26 @@ jobs:
         run: pip3 install --upgrade coveralls
         if: github.event.repository.fork == false
 
+      # NOTE (mristin):
+      # We run this command to detect nasty errors such as import cycles early.
+      - name: Run --help to check that the command works
+        run: aas-core-codegen --help
+
       # NOTE (mristin):
       # We introduce this check as a fast-fail.
       - name: Check help in readme
-        run: python3 dev/continuous_integration/precommit.py --select check-help-in-readme
+        run: |
+          python3 dev/continuous_integration/precommit.py \
+            --select check-help-in-readme
 
       # NOTE (mristin):
       # We introduce this check as a fast-fail.
       - name: Check that __init__.py and pyproject.toml are consistent
-        run: python3 dev/continuous_integration/precommit.py --select check-init-and-pyproject-consistent
+        run: |
+          python3 dev/continuous_integration/precommit.py \
+            --select check-init-and-pyproject-consistent
 
-      - name: Run the checks except testing
+      - name: Run the other checks except testing
         run: |
           python3 dev/continuous_integration/precommit.py \
             --skip \

.gitignore

@@ -23,7 +23,6 @@ dist/
 downloads/
 eggs/
 .eggs/
-lib/
 lib64/
 parts/
 sdist/

aas_core_codegen/python/aas_common/__init__.py

@@ -0,0 +1,27 @@
+"""Provide generators for the main module."""
+
+from aas_core_codegen.python.lib import (
+    _generate_common,
+    _generate_constants,
+    _generate_jsonization,
+    _generate_stringification,
+    _generate_types,
+    _generate_verification,
+    _generate_xmlization,
+)
+
+generate_common = _generate_common.generate
+
+generate_constants = _generate_constants.generate
+
+generate_jsonization = _generate_jsonization.generate
+
+generate_stringification = _generate_stringification.generate
+
+generate_types = _generate_types.generate
+verify_for_types = _generate_types.verify
+
+generate_verification = _generate_verification.generate
+verify_for_verification = _generate_verification.verify
+
+generate_xmlization = _generate_xmlization.generate

aas_core_codegen/python/constants/__init__.py

@@ -224,7 +224,6 @@ def _try_to_cast_to_array_like(
 {I}>>> assert _try_to_cast_to_array_like({{1, 2, 3}}) is None
 {I}"""
 {I}if (
-{II}
 {II}not isinstance(jsonable, (str, bytearray, bytes))
 {II}and hasattr(jsonable, "__iter__")
 {II}and not hasattr(jsonable, "keys")