455 lines
15 KiB
Python
455 lines
15 KiB
Python
import fnmatch
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import logging
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import os
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import re
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import shutil
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from contextlib import contextmanager
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from io import StringIO
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from typing import Callable
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import pytest
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from _pytest.logging import LogCaptureFixture, caplog
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from python_terraform import IsFlagged, IsNotFlagged, Terraform, TerraformCommandError
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logging.basicConfig(level=logging.DEBUG)
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root_logger = logging.getLogger()
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current_path = os.path.dirname(os.path.realpath(__file__))
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FILE_PATH_WITH_SPACE_AND_SPACIAL_CHARS = "test 'test.out!"
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STRING_CASES = [
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[
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lambda x: x.generate_cmd_string("apply", "the_folder", no_color=IsFlagged),
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"terraform apply -no-color the_folder",
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],
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[
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lambda x: x.generate_cmd_string(
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"push", "path", vcs=True, token="token", atlas_address="url"
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),
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"terraform push -vcs=true -token=token -atlas-address=url path",
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],
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[
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lambda x: x.generate_cmd_string(
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"refresh", "path", token="token"
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),
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"terraform refresh -token=token path",
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],
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]
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CMD_CASES = [
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[
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"method",
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"expected_output",
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"expected_ret_code",
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"expected_exception",
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"expected_logs",
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"folder",
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],
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[
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[
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lambda x: x.cmd(
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"plan",
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"var_to_output",
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no_color=IsFlagged,
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var={"test_var": "test"},
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raise_on_error=False,
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),
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# Expected output varies by terraform version
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"Plan: 0 to add, 0 to change, 0 to destroy.",
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0,
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False,
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"",
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"var_to_output",
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],
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# try import aws instance
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[
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lambda x: x.cmd(
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"import",
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"aws_instance.foo",
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"i-abcd1234",
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no_color=IsFlagged,
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raise_on_error=False,
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),
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"",
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1,
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False,
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"Error: No Terraform configuration files",
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"",
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],
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# test with space and special character in file path
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[
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lambda x: x.cmd(
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"plan",
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"var_to_output",
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out=FILE_PATH_WITH_SPACE_AND_SPACIAL_CHARS,
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raise_on_error=False,
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),
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"",
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0,
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False,
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"",
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"var_to_output",
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],
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# test workspace command (commands with subcommand)
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[
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lambda x: x.cmd(
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"workspace", "show", no_color=IsFlagged, raise_on_error=False
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),
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"",
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0,
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False,
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"Command: terraform workspace show -no-color",
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"",
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],
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],
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]
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@pytest.fixture(scope="function")
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def fmt_test_file(request):
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target = os.path.join(current_path, "bad_fmt", "test.backup")
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orgin = os.path.join(current_path, "bad_fmt", "test.tf")
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shutil.copy(orgin, target)
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def td():
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shutil.move(target, orgin)
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request.addfinalizer(td)
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return
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# @pytest.fixture()
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# def string_logger(request) -> Callable[..., str]:
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# log_stream = StringIO()
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# handler = logging.StreamHandler(log_stream)
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# root_logger.addHandler(handler)
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# def td():
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# root_logger.removeHandler(handler)
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# log_stream.close()
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# request.addfinalizer(td)
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# return lambda: str(log_stream.getvalue())
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@pytest.fixture()
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def workspace_setup_teardown():
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"""Fixture used in workspace related tests.
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Create and tear down a workspace
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*Use as a contextmanager*
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"""
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@contextmanager
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def wrapper(workspace_name, create=True, delete=True, *args, **kwargs):
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tf = Terraform(working_dir=current_path)
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tf.init()
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if create:
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tf.create_workspace(workspace_name, *args, **kwargs)
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yield tf
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if delete:
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tf.set_workspace("default")
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tf.delete_workspace(workspace_name)
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yield wrapper
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class TestTerraform:
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def teardown_method(self, _) -> None:
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"""Teardown any state that was previously setup with a setup_method call."""
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exclude = ["test_tfstate_file", "test_tfstate_file2", "test_tfstate_file3"]
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def purge(dir: str, pattern: str) -> None:
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for root, dirnames, filenames in os.walk(dir):
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dirnames[:] = [d for d in dirnames if d not in exclude]
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for filename in fnmatch.filter(filenames, pattern):
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f = os.path.join(root, filename)
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os.remove(f)
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for dirname in fnmatch.filter(dirnames, pattern):
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d = os.path.join(root, dirname)
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shutil.rmtree(d)
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purge(".", "*.tfstate")
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purge(".", "*.tfstate.backup")
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purge(".", "*.terraform")
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purge(".", FILE_PATH_WITH_SPACE_AND_SPACIAL_CHARS)
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@pytest.mark.parametrize(["method", "expected"], STRING_CASES)
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def test_generate_cmd_string(self, method: Callable[..., str], expected: str):
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tf = Terraform(working_dir=current_path)
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result = method(tf)
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strs = expected.split()
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for s in strs:
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assert s in result
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@pytest.mark.parametrize(*CMD_CASES)
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def test_cmd(
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self,
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method: Callable[..., str],
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expected_output: str,
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expected_ret_code: int,
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expected_exception: bool,
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expected_logs: str,
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caplog: LogCaptureFixture,
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folder: str,
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):
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with caplog.at_level(logging.INFO):
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tf = Terraform(working_dir=current_path)
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tf.init(folder)
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try:
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ret, out, _ = method(tf)
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assert not expected_exception
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except TerraformCommandError as e:
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assert expected_exception
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ret = e.returncode
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out = e.out
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assert expected_output in out
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assert expected_ret_code == ret
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assert expected_logs in caplog.text
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@pytest.mark.parametrize(
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("folder", "variables", "var_files", "expected_output", "options"),
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[
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("var_to_output", {"test_var": "test"}, None, "test_output=test", {}),
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(
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"var_to_output",
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{"test_list_var": ["c", "d"]},
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None,
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'test_list_output=["c","d",]',
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{},
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),
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(
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"var_to_output",
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{"test_map_var": {"c": "c", "d": "d"}},
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None,
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'test_map_output={"c"="c""d"="d"}',
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{},
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),
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(
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"var_to_output",
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{"test_map_var": {"c": "c", "d": "d"}},
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"var_to_output/test_map_var.json",
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# Values are overriden
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'test_map_output={"e"="e""f"="f"}',
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{},
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),
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(
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"var_to_output",
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{},
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None,
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"\x1b[0m\x1b[1m\x1b[32mApplycomplete!",
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{"no_color": IsNotFlagged},
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),
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],
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)
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def test_apply(self, folder, variables, var_files, expected_output, options):
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tf = Terraform(
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working_dir=current_path, variables=variables, var_file=var_files
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)
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tf.init(folder)
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ret, out, err = tf.apply(folder, **options)
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assert ret == 0
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assert expected_output in out.replace("\n", "").replace(" ", "")
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assert err == ""
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def test_apply_with_var_file(self, caplog: LogCaptureFixture):
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with caplog.at_level(logging.INFO):
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tf = Terraform(working_dir=current_path)
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folder = "var_to_output"
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tf.init(folder)
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tf.apply(
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folder,
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var_file=os.path.join(current_path, "tfvar_files", "test.tfvars"),
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)
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for log in caplog.messages:
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if log.startswith("Command: terraform apply"):
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assert log.count("-var-file=") == 1
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@pytest.mark.parametrize(
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["cmd", "args", "options"],
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[
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# bool value
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("fmt", ["bad_fmt"], {"list": False, "diff": False})
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],
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)
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def test_options(self, cmd, args, options, fmt_test_file):
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tf = Terraform(working_dir=current_path)
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ret, out, err = getattr(tf, cmd)(*args, **options)
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assert ret == 0
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assert out == ""
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def test_state_data(self):
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cwd = os.path.join(current_path, "test_tfstate_file")
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tf = Terraform(working_dir=cwd, state="tfstate.test")
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tf.read_state_file()
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assert tf.tfstate.modules[0]["path"] == ["root"]
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def test_state_default(self):
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cwd = os.path.join(current_path, "test_tfstate_file2")
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tf = Terraform(working_dir=cwd)
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tf.read_state_file()
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assert tf.tfstate.modules[0]["path"] == ["default"]
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def test_state_default_backend(self):
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cwd = os.path.join(current_path, "test_tfstate_file3")
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tf = Terraform(working_dir=cwd)
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tf.read_state_file()
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assert tf.tfstate.modules[0]["path"] == ["default_backend"]
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def test_pre_load_state_data(self):
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cwd = os.path.join(current_path, "test_tfstate_file")
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tf = Terraform(working_dir=cwd, state="tfstate.test")
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assert tf.tfstate.modules[0]["path"] == ["root"]
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@pytest.mark.parametrize(
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("folder", "variables"), [("var_to_output", {"test_var": "test"})]
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)
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def test_override_default(self, folder, variables):
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tf = Terraform(working_dir=current_path, variables=variables)
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tf.init(folder)
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ret, out, err = tf.apply(
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folder, var={"test_var": "test2"}, no_color=IsNotFlagged,
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)
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out = out.replace("\n", "")
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assert "\x1b[0m\x1b[1m\x1b[32mApply" in out
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out = tf.output("test_output")
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assert "test2" in out
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@pytest.mark.parametrize("output_all", [True, False])
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def test_output(self, caplog: LogCaptureFixture, output_all: bool):
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expected_value = "test"
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required_output = "test_output"
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with caplog.at_level(logging.INFO):
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tf = Terraform(
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working_dir=current_path, variables={"test_var": expected_value}
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)
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tf.init("var_to_output")
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tf.apply("var_to_output")
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params = tuple() if output_all else (required_output,)
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result = tf.output(*params)
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if output_all:
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assert result[required_output]["value"] == expected_value
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else:
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assert result == expected_value
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assert expected_value in caplog.messages[-1]
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def test_destroy(self):
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tf = Terraform(working_dir=current_path, variables={"test_var": "test"})
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tf.init("var_to_output")
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ret, out, err = tf.destroy("var_to_output")
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assert ret == 0
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assert "Destroy complete! Resources: 0 destroyed." in out
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@pytest.mark.parametrize(
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("plan", "variables", "expected_ret"), [("vars_require_input", {}, 1)]
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)
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def test_plan(self, plan, variables, expected_ret):
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tf = Terraform(working_dir=current_path, variables=variables)
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tf.init(plan)
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with pytest.raises(TerraformCommandError) as e:
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tf.plan(plan)
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assert (
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e.value.err
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== """\nError: Missing required argument\n\nThe argument "region" is required, but was not set.\n\n"""
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)
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def test_fmt(self, fmt_test_file):
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tf = Terraform(working_dir=current_path, variables={"test_var": "test"})
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ret, out, err = tf.fmt(diff=True)
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assert ret == 0
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def test_create_workspace(self, workspace_setup_teardown):
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workspace_name = "test"
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with workspace_setup_teardown(workspace_name, create=False) as tf:
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ret, out, err = tf.create_workspace("test")
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assert ret == 0
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assert err == ""
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def test_create_workspace_with_args(self, workspace_setup_teardown, caplog):
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workspace_name = "test"
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state_file_path = os.path.join(
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current_path, "test_tfstate_file2", "terraform.tfstate"
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)
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with workspace_setup_teardown(
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workspace_name, create=False
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) as tf, caplog.at_level(logging.INFO):
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ret, out, err = tf.create_workspace(
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"test", current_path, no_color=IsFlagged
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)
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assert ret == 0
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assert err == ""
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assert (
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f"Command: terraform workspace new -no-color test {current_path}"
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in caplog.messages
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)
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def test_set_workspace(self, workspace_setup_teardown):
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workspace_name = "test"
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with workspace_setup_teardown(workspace_name) as tf:
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ret, out, err = tf.set_workspace(workspace_name)
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assert ret == 0
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assert err == ""
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def test_set_workspace_with_args(self, workspace_setup_teardown, caplog):
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workspace_name = "test"
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with workspace_setup_teardown(workspace_name) as tf, caplog.at_level(
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logging.INFO
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):
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ret, out, err = tf.set_workspace(
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workspace_name, current_path, no_color=IsFlagged
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)
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assert ret == 0
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assert err == ""
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assert (
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f"Command: terraform workspace select -no-color test {current_path}"
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in caplog.messages
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)
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def test_show_workspace(self, workspace_setup_teardown):
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workspace_name = "test"
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with workspace_setup_teardown(workspace_name) as tf:
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ret, out, err = tf.show_workspace()
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assert ret == 0
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assert err == ""
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def test_show_workspace_with_no_color(self, workspace_setup_teardown, caplog):
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workspace_name = "test"
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with workspace_setup_teardown(workspace_name) as tf, caplog.at_level(
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logging.INFO
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):
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ret, out, err = tf.show_workspace(no_color=IsFlagged)
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assert ret == 0
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assert err == ""
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assert "Command: terraform workspace show -no-color" in caplog.messages
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def test_delete_workspace(self, workspace_setup_teardown):
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workspace_name = "test"
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with workspace_setup_teardown(workspace_name, delete=False) as tf:
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tf.set_workspace("default")
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ret, out, err = tf.delete_workspace(workspace_name)
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assert ret == 0
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assert err == ""
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def test_delete_workspace_with_args(self, workspace_setup_teardown, caplog):
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workspace_name = "test"
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with workspace_setup_teardown(
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workspace_name, delete=False
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) as tf, caplog.at_level(logging.INFO):
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tf.set_workspace("default")
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ret, out, err = tf.delete_workspace(
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workspace_name, current_path, force=IsFlagged,
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)
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assert ret == 0
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assert err == ""
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assert (
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f"Command: terraform workspace delete -force test {current_path}"
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in caplog.messages
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)
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