Add test_buildrequire_module_not_in_tag

tests/integration/test_buildrequire_module_not_in_tag.py

@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+# SPDX-License-Identifier: MIT
+import pytest
+from sh import ErrorReturnCode
+
+
+def test_buildrequire_module_not_in_tag(pkg_util, scenario, repo, koji):
+    """
+        Run a build with with an invalid 'build_require' module.
+        I.e.: required module is picked in such a way,
+        that it is not tagged according to the the base module (platform) requirements,
+        see platform's modulemd file and its 'koji_tag_with_modules' attribute
+        (e.g.: platform: el-8.1.0 --> rhel-8.1.0-modules-build).
+
+        Koji resolver is expected to not be able to satisfy this build requirement and hence fail the build.
+
+        Assert that:
+        * the module build hasn't been accepted by MBS - rhpkg utility returns something else than 0
+
+        If assert fails:
+        * cancel all triggered module builds
+
+        """
+
+    repo.bump()
+
+    try:
+        builds = pkg_util.run(
+            "--optional",
+            "rebuild_strategy=all"
+        )
+
+        for build in builds:
+            print("Canceling module-build {}...".format(build.id))
+            pkg_util.cancel(build)
+
+        pytest.fail("build_require satisfied and module build accepted by MBS!")
+
+    except ErrorReturnCode as e:
+        # expected outcome is that build submission fails
+        pass