Add tests for configuration

pyproject.toml

@@ -82,6 +82,7 @@ markers = [
     "context_managers: tests related to pyexasol context_managers.",
     "metadata: tests related to metadata retrieval with pyexasol.",
     "json: tests related to json serialization in pyexasol.",
-    "dbapi2: tests related to dbapi2 compatibility."
+    "dbapi2: tests related to dbapi2 compatibility.",
+    "configuration: tests related to pyexasol settings and configuration."
 ]
 

test/integration/dsn_test.py

@@ -0,0 +1,120 @@
+import pytest
+
+from pyexasol import ExaConnectionError
+
+
+@pytest.mark.configuration
+def test_ip_range_with_custom_Port(connection):
+    dsn = "127.0.0.10..19:8564"
+    expected = {
+        ("127.0.0.10", "127.0.0.10", 8564, None),
+        ("127.0.0.11", "127.0.0.11", 8564, None),
+        ("127.0.0.12", "127.0.0.12", 8564, None),
+        ("127.0.0.13", "127.0.0.13", 8564, None),
+        ("127.0.0.14", "127.0.0.14", 8564, None),
+        ("127.0.0.15", "127.0.0.15", 8564, None),
+        ("127.0.0.16", "127.0.0.16", 8564, None),
+        ("127.0.0.17", "127.0.0.17", 8564, None),
+        ("127.0.0.18", "127.0.0.18", 8564, None),
+        ("127.0.0.19", "127.0.0.19", 8564, None),
+    }
+    actual = set(connection._process_dsn(dsn))
+    assert actual == expected
+
+
+@pytest.mark.configuration
+def test_multiple_ranges_with_multiple_ports_and_default_port_at_the_end(connection):
+    dsn = "127.0.0.10..19:8564,127.0.0.20,localhost:8565,127.0.0.21..23"
+    expected = {
+        ("127.0.0.10", "127.0.0.10", 8564, None),
+        ("127.0.0.11", "127.0.0.11", 8564, None),
+        ("127.0.0.12", "127.0.0.12", 8564, None),
+        ("127.0.0.13", "127.0.0.13", 8564, None),
+        ("127.0.0.14", "127.0.0.14", 8564, None),
+        ("127.0.0.15", "127.0.0.15", 8564, None),
+        ("127.0.0.16", "127.0.0.16", 8564, None),
+        ("127.0.0.17", "127.0.0.17", 8564, None),
+        ("127.0.0.18", "127.0.0.18", 8564, None),
+        ("127.0.0.19", "127.0.0.19", 8564, None),
+        ("127.0.0.20", "127.0.0.20", 8565, None),
+        ("127.0.0.21", "127.0.0.21", 8563, None),
+        ("127.0.0.22", "127.0.0.22", 8563, None),
+        ("127.0.0.23", "127.0.0.23", 8563, None),
+        ("localhost", "127.0.0.1", 8565, None),
+    }
+    actual = set(connection._process_dsn(dsn))
+    assert actual == expected
+
+
+@pytest.mark.configuration
+def test_multiple_ranges_with_fingerprint_and_port(connection):
+    dsn = "127.0.0.10..19/ABC,127.0.0.20,localhost/CDE:8564"
+    expected = {
+        ("127.0.0.11", "127.0.0.11", 8564, "ABC"),
+        ("127.0.0.19", "127.0.0.19", 8564, "ABC"),
+        ("127.0.0.20", "127.0.0.20", 8564, "CDE"),
+        ("127.0.0.17", "127.0.0.17", 8564, "ABC"),
+        ("localhost", "127.0.0.1", 8564, "CDE"),
+        ("127.0.0.12", "127.0.0.12", 8564, "ABC"),
+        ("127.0.0.15", "127.0.0.15", 8564, "ABC"),
+        ("127.0.0.14", "127.0.0.14", 8564, "ABC"),
+        ("127.0.0.13", "127.0.0.13", 8564, "ABC"),
+        ("127.0.0.16", "127.0.0.16", 8564, "ABC"),
+        ("127.0.0.10", "127.0.0.10", 8564, "ABC"),
+        ("127.0.0.18", "127.0.0.18", 8564, "ABC"),
+    }
+    actual = set(connection._process_dsn(dsn))
+    assert actual == expected
+
+
+@pytest.mark.configuration
+def test_empty_dsn(connection):
+    dsn = " "
+    with pytest.raises(ExaConnectionError) as excinfo:
+        connection._process_dsn(dsn)
+
+    expected = "Connection string is empty"
+    actual = excinfo.value.message
+    assert actual == expected
+
+
+@pytest.mark.configuration
+def test_invalid_range(connection):
+    dsn = "127.0.0.15..10"
+    with pytest.raises(ExaConnectionError) as excinfo:
+        connection._process_dsn(dsn)
+
+    expected = (
+        "Connection string part [127.0.0.15..10] contains an invalid range, "
+        "lower bound is higher than upper bound"
+    )
+    actual = excinfo.value.message
+    assert actual == expected
+
+
+@pytest.mark.configuration
+def test_hostname_cannot_be_resolved(connection):
+    dsn = "test1..5.zlan"
+    with pytest.raises(ExaConnectionError) as excinfo:
+        connection._process_dsn(dsn)
+
+    expected = (
+        "Could not resolve IP address of hostname "
+        "[test1.zlan] derived from connection string"
+    )
+    actual = excinfo.value.message
+    assert actual == expected
+
+
+@pytest.mark.configuration
+def test_hostname_range_with_zero_padding(connection):
+    dsn = "test01..20.zlan"
+    with pytest.raises(ExaConnectionError) as excinfo:
+        connection._process_dsn(dsn)
+
+    expected = (
+        "Could not resolve IP address of hostname "
+        "[test01.zlan] derived from connection string"
+    )
+    actual = excinfo.value.message
+    assert actual == expected

test/integration/local_config_test.py

@@ -0,0 +1,36 @@
+import pytest
+import pyexasol
+from inspect import cleandoc
+
+
+@pytest.fixture
+def config(dsn, user, password, schema):
+    yield cleandoc(f"""
+    [pyexasol]
+    dsn = {dsn}
+    user = {user}
+    password = {password}
+    schema = {schema}
+    compression = True
+    encryption = False
+    socket_timeout = 20
+    """)
+
+
+@pytest.fixture
+def config_file(tmpdir, config):
+    path = tmpdir / "pyexasol.ini"
+    with open(path, "w", encoding="utf-8") as f:
+        f.write(config)
+    yield path
+
+
+@pytest.mark.configuration
+def test_connect_using_config(config_file):
+    connection = pyexasol.connect_local_config(
+        config_section="pyexasol", config_path=config_file
+    )
+    result = connection.execute("SELECT 1;")
+    expected = [(1,)]
+    actual = result.fetchall()
+    assert expected == actual

test/integration/session_params_test.py

@@ -0,0 +1,42 @@
+import pytest
+import pyexasol
+from importlib.metadata import version
+
+
+@pytest.fixture
+def pyexasol_version():
+    yield version("pyexasol")
+
+
+@pytest.fixture
+def session_info_query():
+    yield "SELECT * FROM EXA_DBA_SESSIONS WHERE session_id=CURRENT_SESSION"
+
+
+@pytest.mark.configuration
+def test_default_session_parameters(connection, session_info_query, pyexasol_version):
+    expected = {f"PyEXASOL {pyexasol_version}"}
+    actual = set(connection.execute(session_info_query).fetchone())
+    assert actual >= expected
+
+
+@pytest.mark.configuration
+def test_modified_session_parameters(
+    dsn, user, password, schema, connection, session_info_query
+):
+    client_name = "MyCustomClient"
+    client_version = "1.2.3"
+    client_os_username = "small_cat"
+    connection = pyexasol.connect(
+        dsn=dsn,
+        user=user,
+        password=password,
+        schema=schema,
+        client_name=client_name,
+        client_version=client_version,
+        client_os_username=client_os_username,
+    )
+
+    expected = {f"{client_name} {client_version}", client_os_username}
+    actual = set(connection.execute(session_info_query).fetchone())
+    assert actual >= expected