chore: test wider array of things, fail on purpose

.github/workflows/test.yaml

@@ -104,9 +104,9 @@ jobs:
           # - "3.9"
           - "3.10"
         juju:
-          #- "3.1/stable"
-          #- "3.3/stable"
-          #- "3.4/stable"
+          - "3.1/stable"
+          - "3.3/stable"
+          - "3.4/stable"
           - "3.5/stable"
           # A bunch of tests fail with juju.errors.JujuError: base: [email protected]/stable
           # * test_subordinate_units

tests/integration/test_application.py

@@ -102,10 +102,32 @@ async def test_add_units():
             assert isinstance(unit, Unit)
 
 
+@pytest.mark.parametrize("thebase", [
+    None,
+    "[email protected]",
+    "[email protected]/stable",
+    "[email protected]",
+    "[email protected]/stable",
+    "[email protected]",
+    "[email protected]/stable",
+    "[email protected]",
+    "[email protected]/stable",
+    ])
+@base.bootstrapped
+async def test_deploy_charmhub_charm_ex(thebase: str):
+    async with base.CleanModel() as model:
+        app = await model.deploy('ubuntu', base=thebase)
+        assert False, "fail on purpose to get the logs"
+        await model.block_until(lambda: (len(app.units) > 0 and
+                                         app.units[0].machine))
+        assert 'ubuntu' in app.data['charm-url']
+
+
 @base.bootstrapped
 async def test_deploy_charmhub_charm():
     async with base.CleanModel() as model:
         app = await model.deploy('ubuntu')
+        assert False, "fail on purpose to get the logs"
         await model.block_until(lambda: (len(app.units) > 0 and
                                          app.units[0].machine))
         assert 'ubuntu' in app.data['charm-url']