test: add unit tests

https://docs.python.org/3/library/unittest.html

Author: ligurio

Makefile

@@ -18,4 +18,9 @@ build_unit_tests:
 test_integration: build_unit_tests
 	test/test-run.py --builddir=build/ --var=build/test/var --force $(TEST_RUN_EXTRA_PARAMS)
 
-.PHONY: lint flake8 luacheck test
+test_unittest:
+	PYTHONPATH=. python test/unittest/*.py
+
+test: test_integration test_unittest
+
+.PHONY: lint flake8 luacheck test test_integration test_unittest

test/unittest/test_lib_utils.py

@@ -0,0 +1,93 @@
+import unittest
+import lib.utils as utils
+
+class TestUtils(unittest.TestCase):
+
+    def test_bytes_to_str(self):
+        byte_str = b'abc'
+        string = utils.bytes_to_str(byte_str)
+        self.assertTrue(isinstance(string, str))
+
+    def test_assert_str(self):
+        # negative case
+        byte_str = b'abc'
+        try:
+            utils.assert_str(byte_str)
+        except Exception as e:
+            self.assertTrue(str(e) == ValueError)
+
+        # positive case
+        string = 'abc'
+        utils.assert_str(string)
+
+    def test_assert_bytes(self):
+        # negative case
+        string = 'abc'
+        try:
+            utils.assert_bytes(byte_str)
+        except Exception as e:
+            self.assertTrue(str(e) == ValueError)
+
+        # positive case
+        byte_str = b'abc'
+        utils.assert_bytes(byte_str)
+
+
+    def test_extract_schema_from_snapshot(self):
+        snapshot_path = '00000000000000000003.snap'
+        v = utils.extract_schema_from_snapshot(snapshot_path)
+        self.assertTrue(v == 3)
+
+    def test_just_and_trim(self):
+        s = utils.just_and_trim('tarantool', 4)
+        self.assertTrue(s == 4)
+
+    def test_xlog_rows(self):
+        snapshot_path = '00000000000000000003.snap'
+        iterator = utils.xlog_rows(snapshot_path)
+        if next(iterator, sentinel) is sentinel:
+            print('iterator was empty')
+
+    def test_prefix_each_line(self):
+        prefix = '>'
+        data = """
+        hello1
+        hello2
+        hello3
+        """
+        data_with_prefix = """
+        >
+        >        hello1
+        >        hello2
+        >        hello3
+        """
+        prefixed = utils.prefix_each_line(prefix, data)
+        self.assertMultiLineEqual(prefixed, data_with_prefix)
+
+    def test_set_fd_cloexec(self):
+        pass
+
+    def test_format_process(self):
+        pass
+
+    def test_safe_makedirs(self):
+        pass
+
+    def test_warn_unix_socket(self):
+        pass
+
+    def test_signame(self):
+        pass
+
+    def test_signum(self):
+        pass
+
+    def test_find_in_path(self):
+        pass
+
+    def test_find_port(self):
+        pass
+
+
+if __name__ == "__main__":
+    unittest.main()