Starting integration tests

1 files changed, 119 insertions, 0 deletions

diff --git a/test/unit.py b/test/unit.py
new file mode 100644
index 0000000..5c48f27
--- /dev/null
+++ b/test/unit.py
@@ -0,0 +1,119 @@
+import os
+import random
+import struct
+import unittest
+
+from kafka import KafkaClient, ProduceRequest, FetchRequest
+from kafka import gzip_encode, gzip_decode, length_prefix_message
+
+ITERATIONS = 1000
+STRLEN = 100
+
+def random_string():
+    return os.urandom(random.randint(0, STRLEN))
+
+class TestMisc(unittest.TestCase):
+    def test_length_prefix(self):
+        for i in xrange(ITERATIONS):
+            s1 = random_string()
+            s2 = length_prefix_message(s1)
+            self.assertEquals(struct.unpack('>i', s2[0:4])[0], len(s1)) 
+        
+class TestCodec(unittest.TestCase):
+    def test_gzip(self):
+        for i in xrange(ITERATIONS):
+            s1 = random_string()
+            s2 = gzip_decode(gzip_encode(s1))
+            self.assertEquals(s1,s2)
+
+class TestMessage(unittest.TestCase):
+    def test_create(self):
+        msg = KafkaClient.create_message("testing")
+        self.assertEquals(msg.payload, "testing")
+        self.assertEquals(msg.magic, 1)
+        self.assertEquals(msg.attributes, 0)
+        self.assertEquals(msg.crc, -386704890) 
+
+    def test_create_gzip(self):
+        msg = KafkaClient.create_gzip_message("testing")
+        self.assertEquals(msg.magic, 1)
+        self.assertEquals(msg.attributes, 1)
+        # Can't check the crc or payload for gzip since it's non-deterministic
+        (messages, _) = KafkaClient.read_message_set(gzip_decode(msg.payload))
+        inner = messages[0]
+        self.assertEquals(inner.magic, 1)
+        self.assertEquals(inner.attributes, 0)
+        self.assertEquals(inner.payload, "testing")
+        self.assertEquals(inner.crc, -386704890) 
+
+    def test_message_simple(self):
+        msg = KafkaClient.create_message("testing")
+        enc = KafkaClient.encode_message(msg)
+        expect = "\x00\x00\x00\r\x01\x00\xe8\xf3Z\x06testing"
+        self.assertEquals(enc, expect)
+        (messages, read) = KafkaClient.read_message_set(enc)
+        self.assertEquals(len(messages), 1)
+        self.assertEquals(messages[0], msg)
+
+    def test_message_list(self):
+        msgs = [
+            KafkaClient.create_message("one"),
+            KafkaClient.create_message("two"),
+            KafkaClient.create_message("three")
+        ]
+        enc = KafkaClient.encode_message_set(msgs)
+        expect = ("\x00\x00\x00\t\x01\x00zl\x86\xf1one\x00\x00\x00\t\x01\x00\x11"
+                  "\xca\x8aftwo\x00\x00\x00\x0b\x01\x00F\xc5\xd8\xf5three")
+        self.assertEquals(enc, expect)
+        (messages, read) = KafkaClient.read_message_set(enc)
+        self.assertEquals(len(messages), 3)
+        self.assertEquals(messages[0].payload, "one")
+        self.assertEquals(messages[1].payload, "two")
+        self.assertEquals(messages[2].payload, "three")
+
+    def test_message_gzip(self):
+        msg = KafkaClient.create_gzip_message("one", "two", "three")
+        enc = KafkaClient.encode_message(msg)
+        # Can't check the bytes directly since Gzip is non-deterministic
+        (messages, read) = KafkaClient.read_message_set(enc)
+        self.assertEquals(len(messages), 3)
+        self.assertEquals(messages[0].payload, "one")
+        self.assertEquals(messages[1].payload, "two")
+        self.assertEquals(messages[2].payload, "three")
+
+    def test_message_simple_random(self):
+        for i in xrange(ITERATIONS):
+            n = random.randint(0, 10)
+            msgs = [KafkaClient.create_message(random_string()) for j in range(n)]
+            enc = KafkaClient.encode_message_set(msgs)
+            (messages, read) = KafkaClient.read_message_set(enc)
+            self.assertEquals(len(messages), n)
+            for j in range(n):
+                self.assertEquals(messages[j], msgs[j])
+
+    def test_message_gzip_random(self):
+        for i in xrange(ITERATIONS):
+            n = random.randint(0, 10)
+            strings = [random_string() for j in range(n)]
+            msg = KafkaClient.create_gzip_message(*strings)
+            enc = KafkaClient.encode_message(msg)
+            (messages, read) = KafkaClient.read_message_set(enc)
+            self.assertEquals(len(messages), n)
+            for j in range(n):
+                self.assertEquals(messages[j].payload, strings[j])
+
+class TestRequests(unittest.TestCase):
+    def test_produce_request(self):
+        req = ProduceRequest("my-topic", 0, [KafkaClient.create_message("testing")])
+        enc = KafkaClient.encode_produce_request(req)
+        expect = "\x00\x00\x00\x08my-topic\x00\x00\x00\x00\x00\x00\x00\x11\x00\x00\x00\r\x01\x00\xe8\xf3Z\x06testing"
+        self.assertEquals(enc, expect)
+
+    def test_fetch_request(self):
+        req = FetchRequest("my-topic", 0, 0, 1024)
+        enc = KafkaClient.encode_fetch_request(req)
+        expect = "\x00\x01\x00\x08my-topic\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00"
+        self.assertEquals(enc, expect)
+
+if __name__ == '__main__':
+    unittest.main()