organise python tests in subdirectories

The directories follow the same structure as the modules in
nominatim/.

test/python/db/test_utils.py

@@ -0,0 +1,154 @@
+"""
+Tests for DB utility functions in db.utils
+"""
+import json
+
+import pytest
+
+import nominatim.db.utils as db_utils
+from nominatim.errors import UsageError
+
+def test_execute_file_success(dsn, temp_db_cursor, tmp_path):
+    tmpfile = tmp_path / 'test.sql'
+    tmpfile.write_text('CREATE TABLE test (id INT);\nINSERT INTO test VALUES(56);')
+
+    db_utils.execute_file(dsn, tmpfile)
+
+    assert temp_db_cursor.row_set('SELECT * FROM test') == {(56, )}
+
+def test_execute_file_bad_file(dsn, tmp_path):
+    with pytest.raises(FileNotFoundError):
+        db_utils.execute_file(dsn, tmp_path / 'test2.sql')
+
+
+def test_execute_file_bad_sql(dsn, tmp_path):
+    tmpfile = tmp_path / 'test.sql'
+    tmpfile.write_text('CREATE STABLE test (id INT)')
+
+    with pytest.raises(UsageError):
+        db_utils.execute_file(dsn, tmpfile)
+
+
+def test_execute_file_bad_sql_ignore_errors(dsn, tmp_path):
+    tmpfile = tmp_path / 'test.sql'
+    tmpfile.write_text('CREATE STABLE test (id INT)')
+
+    db_utils.execute_file(dsn, tmpfile, ignore_errors=True)
+
+
+def test_execute_file_with_pre_code(dsn, tmp_path, temp_db_cursor):
+    tmpfile = tmp_path / 'test.sql'
+    tmpfile.write_text('INSERT INTO test VALUES(4)')
+
+    db_utils.execute_file(dsn, tmpfile, pre_code='CREATE TABLE test (id INT)')
+
+    assert temp_db_cursor.row_set('SELECT * FROM test') == {(4, )}
+
+
+def test_execute_file_with_post_code(dsn, tmp_path, temp_db_cursor):
+    tmpfile = tmp_path / 'test.sql'
+    tmpfile.write_text('CREATE TABLE test (id INT)')
+
+    db_utils.execute_file(dsn, tmpfile, post_code='INSERT INTO test VALUES(23)')
+
+    assert temp_db_cursor.row_set('SELECT * FROM test') == {(23, )}
+
+
+class TestCopyBuffer:
+    TABLE_NAME = 'copytable'
+
+    @pytest.fixture(autouse=True)
+    def setup_test_table(self, table_factory):
+        table_factory(self.TABLE_NAME, 'colA INT, colB TEXT')
+
+
+    def table_rows(self, cursor):
+        return cursor.row_set('SELECT * FROM ' + self.TABLE_NAME)
+
+
+    def test_copybuffer_empty(self):
+        with db_utils.CopyBuffer() as buf:
+            buf.copy_out(None, "dummy")
+
+
+    def test_all_columns(self, temp_db_cursor):
+        with db_utils.CopyBuffer() as buf:
+            buf.add(3, 'hum')
+            buf.add(None, 'f\\t')
+
+            buf.copy_out(temp_db_cursor, self.TABLE_NAME)
+
+        assert self.table_rows(temp_db_cursor) == {(3, 'hum'), (None, 'f\\t')}
+
+
+    def test_selected_columns(self, temp_db_cursor):
+        with db_utils.CopyBuffer() as buf:
+            buf.add('foo')
+
+            buf.copy_out(temp_db_cursor, self.TABLE_NAME,
+                         columns=['colB'])
+
+        assert self.table_rows(temp_db_cursor) == {(None, 'foo')}
+
+
+    def test_reordered_columns(self, temp_db_cursor):
+        with db_utils.CopyBuffer() as buf:
+            buf.add('one', 1)
+            buf.add(' two ', 2)
+
+            buf.copy_out(temp_db_cursor, self.TABLE_NAME,
+                         columns=['colB', 'colA'])
+
+        assert self.table_rows(temp_db_cursor) == {(1, 'one'), (2, ' two ')}
+
+
+    def test_special_characters(self, temp_db_cursor):
+        with db_utils.CopyBuffer() as buf:
+            buf.add('foo\tbar')
+            buf.add('sun\nson')
+            buf.add('\\N')
+
+            buf.copy_out(temp_db_cursor, self.TABLE_NAME,
+                         columns=['colB'])
+
+        assert self.table_rows(temp_db_cursor) == {(None, 'foo\tbar'),
+                                                   (None, 'sun\nson'),
+                                                   (None, '\\N')}
+
+
+
+class TestCopyBufferJson:
+    TABLE_NAME = 'copytable'
+
+    @pytest.fixture(autouse=True)
+    def setup_test_table(self, table_factory):
+        table_factory(self.TABLE_NAME, 'colA INT, colB JSONB')
+
+
+    def table_rows(self, cursor):
+        cursor.execute('SELECT * FROM ' + self.TABLE_NAME)
+        results = {k: v for k,v in cursor}
+
+        assert len(results) == cursor.rowcount
+
+        return results
+
+
+    def test_json_object(self, temp_db_cursor):
+        with db_utils.CopyBuffer() as buf:
+            buf.add(1, json.dumps({'test': 'value', 'number': 1}))
+
+            buf.copy_out(temp_db_cursor, self.TABLE_NAME)
+
+        assert self.table_rows(temp_db_cursor) == \
+                   {1: {'test': 'value', 'number': 1}}
+
+
+    def test_json_object_special_chras(self, temp_db_cursor):
+        with db_utils.CopyBuffer() as buf:
+            buf.add(1, json.dumps({'te\tst': 'va\nlue', 'nu"mber': None}))
+
+            buf.copy_out(temp_db_cursor, self.TABLE_NAME)
+
+        assert self.table_rows(temp_db_cursor) == \
+                   {1: {'te\tst': 'va\nlue', 'nu"mber': None}}