[explorer/rest]: added database namespace unit test

explorer/rest/tests/db/test_NemDatabase.py

@@ -2,7 +2,7 @@
 
 from rest.db.NemDatabase import NemDatabase
 
-from ..test.DatabaseTestUtils import BLOCK_VIEWS, DatabaseTestBase
+from ..test.DatabaseTestUtils import BLOCK_VIEWS, NAMESPACE_VIEWS, DatabaseTestBase
 
 BlockQueryParams = namedtuple('BlockQueryParams', ['limit', 'offset', 'min_height', 'sort'])
 PaginationQueryParams = namedtuple('PaginationQueryParams', ['limit', 'offset', 'sort'])
@@ -13,11 +13,17 @@
 
 EXPECTED_BLOCK_VIEW_2 = BLOCK_VIEWS[1]
 
+EXPECTED_NAMESPACE_VIEW_1 = NAMESPACE_VIEWS[0]
+
+EXPECTED_NAMESPACE_VIEW_2 = NAMESPACE_VIEWS[1]
+
 # endregion
 
 
 class NemDatabaseTest(DatabaseTestBase):
 
+	# region block tests
+
 	def _assert_can_query_block_by_height(self, height, expected_block):
 		# Arrange:
 		nem_db = NemDatabase(self.db_config, self.network)
@@ -67,3 +73,53 @@ def test_can_query_blocks_sorted_by_height_asc(self):
 
 	def test_can_query_blocks_sorted_by_height_desc(self):
 		self._assert_can_query_blocks_with_filter(BlockQueryParams(10, 0, 0, 'desc'), [EXPECTED_BLOCK_VIEW_2, EXPECTED_BLOCK_VIEW_1])
+
+	# endregion
+
+	# region namespace tests
+
+	def _assert_can_query_namespace_by_name(self, name, expected_namespace):
+		# Arrange:
+		nem_db = NemDatabase(self.db_config, self.network)
+
+		# Act:
+		namespace_view = nem_db.get_namespace(name)
+
+		# Assert:
+		self.assertEqual(expected_namespace, namespace_view)
+
+	def _assert_can_query_namespaces_with_filter(self, query_params, expected_namespaces):
+		# Arrange:
+		nem_db = NemDatabase(self.db_config, self.network)
+
+		# Act:
+		namespaces_view = nem_db.get_namespaces(query_params.limit, query_params.offset, query_params.sort)
+
+		# Assert:
+		self.assertEqual(expected_namespaces, namespaces_view)
+
+	def test_can_query_namespace_by_name(self):
+		self._assert_can_query_namespace_by_name('oxford', EXPECTED_NAMESPACE_VIEW_1)
+
+	def test_cannot_query_nonexistent_namespace(self):
+		self._assert_can_query_namespace_by_name('non_exist', None)
+
+	def test_can_query_namespaces_filtered_limit(self):
+		self._assert_can_query_namespaces_with_filter(PaginationQueryParams(1, 0, 'desc'), [EXPECTED_NAMESPACE_VIEW_2])
+
+	def test_can_query_namespaces_filtered_offset_0(self):
+		self._assert_can_query_namespaces_with_filter(PaginationQueryParams(1, 0, 'desc'), [EXPECTED_NAMESPACE_VIEW_2])
+
+	def test_can_query_namespaces_filtered_offset_1(self):
+		self._assert_can_query_namespaces_with_filter(PaginationQueryParams(1, 1, 'desc'), [EXPECTED_NAMESPACE_VIEW_1])
+
+	def test_can_query_namespaces_sorted_by_id_asc(self):
+		self._assert_can_query_namespaces_with_filter(PaginationQueryParams(10, 0, 'asc'), [EXPECTED_NAMESPACE_VIEW_1, EXPECTED_NAMESPACE_VIEW_2])
+
+	def test_can_query_namespaces_sorted_by_id_desc(self):
+		self._assert_can_query_namespaces_with_filter(
+			PaginationQueryParams(10, 0, 'desc'),
+			[EXPECTED_NAMESPACE_VIEW_2, EXPECTED_NAMESPACE_VIEW_1]
+		)
+
+	# endregion