Add minimal unittest for TUF bootstrap cli

Signed-off-by: Lukas Puehringer <lukas.puehringer@nyu.edu>

Author: lukpueh

tests/unit/cli/test_tuf.py

@@ -0,0 +1,38 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import json
+
+from pretend import call, call_recorder
+
+from warehouse.cli import tuf
+
+
+class TestTUF:
+    def test_bootstrap(self, cli, monkeypatch):
+        task_id = "123456"
+        server = "rstuf.api"
+        payload = ["foo"]
+
+        post = call_recorder(lambda *a: task_id)
+        wait = call_recorder(lambda *a: None)
+        monkeypatch.setattr(tuf, "post_bootstrap", post)
+        monkeypatch.setattr(tuf, "wait_for_success", wait)
+
+        result = cli.invoke(
+            tuf.bootstrap, args=["--api-server", server, "-"], input=json.dumps(payload)
+        )
+
+        assert result.exit_code == 0
+
+        assert post.calls == [call(server, payload)]
+        assert wait.calls == [call(server, task_id)]