Merge b9b0ca0 into 7129c8a

esque/cli/commands.py

@@ -372,7 +372,7 @@ def ping(state, times, wait):
     deltas = []
     try:
         try:
-            topic_controller.create_topics([topic_controller.get_cluster_topic(PING_TOPIC)])
+            topic_controller.create_topics([Topic(PING_TOPIC)])
         except TopicAlreadyExistsException:
             click.echo("Topic already exists.")
 
@@ -383,7 +383,7 @@ def ping(state, times, wait):
 
         for i in range(times):
             producer.produce(PING_TOPIC)
-            _, delta = consumer.consume()
+            _, delta = consumer.consume(1)
             deltas.append(delta)
             click.echo(f"m_seq={i} time={delta:.2f}ms")
             sleep(wait)

esque/clients/consumer.py

@@ -5,7 +5,7 @@
 
 import confluent_kafka
 import pendulum
-from confluent_kafka.cimpl import Message
+from confluent_kafka.cimpl import Message, TopicPartition
 
 from esque.clients.schemaregistry import SchemaRegistryClient
 from esque.config import Config
@@ -35,7 +35,7 @@ def __init__(self, group_id: str, topic_name: str, last: bool):
             }
         )
         self._consumer = confluent_kafka.Consumer(self._config)
-        self._subscribe(topic_name)
+        self._topic_name = topic_name
 
     def _subscribe(self, topic: str) -> None:
         self._consumer.subscribe([topic])
@@ -51,13 +51,19 @@ def _consume_single_message(self, timeout=30) -> Optional[Message]:
 
 
 class PingConsumer(AbstractConsumer):
-    def consume(self, amount: int) -> Optional[Tuple[str, int]]:
-        message = self._consume_single_message()
+    def __init__(self, group_id: str, topic_name: str, last: bool):
+        super().__init__(group_id, topic_name, last)
+        self._assign_exact_partitions(topic_name)
 
+    def consume(self, amount: int) -> Optional[Tuple[str, int]]:
+        message = self._consume_single_message(timeout=1)
         msg_sent_at = pendulum.from_timestamp(float(message.value()))
         delta_sent = pendulum.now() - msg_sent_at
         return message.key(), delta_sent.microseconds / 1000
 
+    def _assign_exact_partitions(self, topic: str) -> None:
+        self._consumer.assign([TopicPartition(topic=topic, partition=0, offset=0)])
+
 
 class FileConsumer(AbstractConsumer):
     def __init__(self, group_id: str, topic_name: str, working_dir: pathlib.Path, last: bool):
@@ -101,6 +107,7 @@ class AvroFileConsumer(FileConsumer):
     def __init__(self, group_id: str, topic_name: str, working_dir: pathlib.Path, last: bool):
         super().__init__(group_id, topic_name, working_dir, last)
         self.schema_registry_client = SchemaRegistryClient(Config().schema_registry)
+        self._subscribe(topic_name)
 
     def get_file_writer(self, partition: int) -> FileWriter:
         return AvroFileWriter((self.working_dir / f"partition_{partition}"), self.schema_registry_client)

tests/conftest.py

@@ -6,6 +6,7 @@
 
 import confluent_kafka
 import pytest
+from click.testing import CliRunner
 from confluent_kafka.admin import AdminClient, NewTopic
 from confluent_kafka.avro import AvroProducer
 from confluent_kafka.cimpl import Producer, TopicPartition
@@ -38,6 +39,11 @@ def pytest_collection_modifyitems(config, items):
             item.add_marker(integration)
 
 
+@pytest.fixture()
+def cli_runner():
+    yield CliRunner()
+
+
 @pytest.fixture()
 def test_config_path(mocker, tmpdir_factory):
     fn: Path = tmpdir_factory.mktemp("config").join("dummy.cfg")

tests/integration/commands/test_apply.py

@@ -0,0 +1,119 @@
+from typing import Any, Dict
+
+import pytest
+import yaml
+from click.testing import CliRunner
+
+from esque.cli.commands import apply
+from esque.errors import KafkaException
+from esque.topic import Topic
+from esque.topic_controller import TopicController
+
+
+@pytest.mark.integration
+def test_apply(cli_runner, topic_controller: TopicController, topic_id: str):
+    topic_name = f"apply_{topic_id}"
+    topic_1 = {
+        "name": topic_name + "_1",
+        "replication_factor": 1,
+        "num_partitions": 50,
+        "config": {"cleanup.policy": "compact"},
+    }
+    topic_2 = {
+        "name": topic_name + "_2",
+        "replication_factor": 1,
+        "num_partitions": 5,
+        "config": {"cleanup.policy": "delete", "delete.retention.ms": 50000},
+    }
+    apply_conf = {"topics": [topic_1]}
+
+    # 1: topic creation
+    path = save_yaml(topic_id, apply_conf)
+    result = cli_runner.invoke(apply, ["-f", path], input="Y\n")
+    assert (
+        result.exit_code == 0 and "Successfully applied changes" in result.output
+    ), f"Calling apply failed, error: {result.output}"
+
+    # 2: change cleanup policy to delete
+    topic_1["config"]["cleanup.policy"] = "delete"
+    path = save_yaml(topic_id, apply_conf)
+    result = cli_runner.invoke(apply, ["-f", path], input="Y\n")
+    assert (
+        result.exit_code == 0 and "Successfully applied changes" in result.output
+    ), f"Calling apply failed, error: {result.output}"
+
+    # 3: add another topic and change the first one again
+    apply_conf["topics"].append(topic_2)
+    topic_1["config"]["cleanup.policy"] = "compact"
+    path = save_yaml(topic_id, apply_conf)
+    result = cli_runner.invoke(apply, ["-f", path], input="Y\n")
+    assert (
+        result.exit_code == 0 and "Successfully applied changes" in result.output
+    ), f"Calling apply failed, error: {result.output}"
+
+    # 4: no changes
+    result = cli_runner.invoke(apply, ["-f", path])
+    assert (
+        result.exit_code == 0 and "No changes detected, aborting" in result.output
+    ), f"Calling apply failed, error: {result.output}"
+
+    # 5: change partitions - this attempt should be cancelled
+    topic_1["num_partitions"] = 3
+    topic_1["config"]["cleanup.policy"] = "delete"
+    path = save_yaml(topic_id, apply_conf)
+    result = cli_runner.invoke(apply, ["-f", path], input="Y\n")
+    assert (
+        result.exit_code == 0 and "to `replication_factor` and `num_partitions`" in result.output
+    ), f"Calling apply failed, error: {result.output}"
+    # reset config to the old settings again
+    topic_1["num_partitions"] = 50
+    topic_1["config"]["cleanup.policy"] = "compact"
+
+    # final: check results in the cluster to make sure they match
+    for topic_conf in apply_conf["topics"]:
+        topic_from_conf = Topic.from_dict(topic_conf)
+        assert not topic_controller.diff_with_cluster(
+            topic_from_conf
+        ).has_changes, f"Topic configs don't match, diff is {topic_controller.diff_with_cluster(topic_from_conf)}"
+
+
+@pytest.mark.integration
+def test_apply_duplicate_names(cli_runner: CliRunner, topic_id: str):
+    topic_name = f"apply_{topic_id}"
+    topic_1 = {
+        "name": topic_name,
+        "replication_factor": 1,
+        "num_partitions": 50,
+        "config": {"cleanup.policy": "compact"},
+    }
+    apply_conf = {"topics": [topic_1, topic_1]}
+
+    # having the same topic name twice in apply should raise an ValueError
+    path = save_yaml(topic_id, apply_conf)
+    result = cli_runner.invoke(apply, ["-f", path], input="Y\n")
+    assert result.exit_code != 0 and isinstance(result.exception, ValueError), f"Calling apply should have failed"
+
+
+@pytest.mark.integration
+def test_apply_invalid_replicas(cli_runner: CliRunner, topic_id: str):
+    topic_name = f"apply_{topic_id}"
+    topic_1 = {
+        "name": topic_name,
+        "replication_factor": 100,
+        "num_partitions": 50,
+        "config": {"cleanup.policy": "compact"},
+    }
+    apply_conf = {"topics": [topic_1]}
+
+    # having the same topic name twice in apply should raise an ValueError
+    path = save_yaml(topic_id, apply_conf)
+    result = cli_runner.invoke(apply, ["-f", path], input="Y\n")
+    assert result.exit_code != 0 and isinstance(result.exception, KafkaException), f"Calling apply should have failed"
+
+
+def save_yaml(fname: str, data: Dict[str, Any]) -> str:
+    # this path name is in the gitignore so the temp files are not committed
+    path = f"tests/test_samples/{fname}_apply.yaml"
+    with open(path, "w") as outfile:
+        yaml.dump(data, outfile, default_flow_style=False)
+    return path

tests/integration/commands/test_creation.py

@@ -0,0 +1,12 @@
+import confluent_kafka
+from click.testing import CliRunner
+
+from esque.cli.commands import create_topic
+
+
+def test_create(cli_runner: CliRunner, confluent_admin_client: confluent_kafka.admin.AdminClient, topic_id: str):
+
+    cli_runner.invoke(create_topic, [topic_id])
+
+    topics = confluent_admin_client.list_topics(timeout=5).topics.keys()
+    assert topic_id not in topics

tests/integration/commands/test_deletion.py

@@ -0,0 +1,52 @@
+import confluent_kafka
+import pytest
+from click.testing import CliRunner
+
+from esque.cli.commands import delete_topic
+
+
+@pytest.fixture()
+def basic_topic(num_partitions, topic_factory):
+    yield from topic_factory(num_partitions, "basic-topic")
+
+
+@pytest.fixture()
+def duplicate_topic(num_partitions, topic_factory):
+    yield from topic_factory(num_partitions, "basic.topic")
+
+
+@pytest.mark.integration
+def test_topic_deletion_works(
+    cli_runner: CliRunner, confluent_admin_client: confluent_kafka.admin.AdminClient, topic: str
+):
+    topics = confluent_admin_client.list_topics(timeout=5).topics.keys()
+    assert topic in topics
+
+    result = cli_runner.invoke(delete_topic, [topic], input="y\n")
+    assert result.exit_code == 0
+
+    # Invalidate cache
+    confluent_admin_client.poll(timeout=1)
+    topics = confluent_admin_client.list_topics(timeout=5).topics.keys()
+    assert topic not in topics
+
+
+@pytest.mark.integration
+def test_keep_kafka_duplicated(
+    cli_runner: CliRunner,
+    confluent_admin_client: confluent_kafka.admin.AdminClient,
+    basic_topic: str,
+    duplicate_topic: str,
+):
+    topics = confluent_admin_client.list_topics(timeout=5).topics.keys()
+    assert basic_topic[0] in topics
+    assert duplicate_topic[0] in topics
+
+    result = cli_runner.invoke(delete_topic, [duplicate_topic[0]], input="y\n")
+    assert result.exit_code == 0
+
+    # Invalidate cache
+    confluent_admin_client.poll(timeout=1)
+    topics = confluent_admin_client.list_topics(timeout=5).topics.keys()
+    assert duplicate_topic[0] not in topics
+    assert basic_topic[0] in topics

tests/integration/commands/test_describe.py

@@ -0,0 +1,9 @@
+from click.testing import CliRunner
+
+from esque.cli.commands import describe_topic
+
+
+def test_smoke_test_describe_topic(cli_runner: CliRunner, topic: str):
+    result = cli_runner.invoke(describe_topic, [topic])
+
+    assert result.exit_code == 0

tests/integration/commands/test_get.py

@@ -0,0 +1,9 @@
+from click.testing import CliRunner
+
+from esque.cli.commands import get_topics
+
+
+def test_smoke_test_get_topics(cli_runner: CliRunner):
+    result = cli_runner.invoke(get_topics)
+
+    assert result.exit_code == 0

tests/integration/commands/test_ping.py

@@ -0,0 +1,25 @@
+import confluent_kafka
+from click.testing import CliRunner
+
+from esque import config
+from esque.cli.commands import ping
+from esque.topic_controller import TopicController
+
+
+def test_smoke_test_ping(cli_runner: CliRunner):
+    result = cli_runner.invoke(ping)
+
+    assert result.exit_code == 0
+
+
+def test_correct_amount_of_messages(
+    mocker, cli_runner: CliRunner, confluent_admin_client: confluent_kafka.admin.AdminClient, topic_id: str
+):
+    config.RANDOM = "test"
+
+    topic_controller_delete_topic = mocker.patch.object(TopicController, "delete_topic", mocker.Mock())
+
+    result = cli_runner.invoke(ping)
+
+    assert result.exit_code == 0
+    assert topic_controller_delete_topic.call_count == 1