refactor code related with setup env

- modify env.py and scripts
- add unit test

Change-Id: I416cd517bdddfeb907675705009d83ecada7f87c
Signed-off-by: wu.zhihui <wu.zhihui1@zte.com.cn>

1 files changed, 94 insertions, 0 deletions

diff --git a/tests/unit/util/env_test.py b/tests/unit/util/env_test.py
new file mode 100644
index 00000000..38ac988b
--- /dev/null
+++ b/tests/unit/util/env_test.py
@@ -0,0 +1,94 @@
+###############################################################
+# Copyright (c) 2017 ZTE Corporation
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+import time
+
+import mock
+import pytest
+
+from qtip.util import env
+
+
+def test_all_files_exist(tmpdir):
+    exist_file = tmpdir.mkdir('qtip').join('hello.txt')
+    exist_file.write("hello")
+    non_exist_file = tmpdir.strpath + '/tmp.txt'
+    assert env.all_files_exist() is False
+    assert env.all_files_exist(str(exist_file))
+    assert env.all_files_exist(non_exist_file) is False
+    assert env.all_files_exist(str(exist_file), non_exist_file) is False
+
+
+def test_clean_file(tmpdir):
+    exist_file = tmpdir.mkdir('qtip').join('hello.txt')
+    exist_file.write("hello")
+    non_exist_file = tmpdir.strpath + '/tmp.txt'
+
+    assert env.clean_file() is False
+    assert env.clean_file(str(exist_file))
+    assert env.clean_file(non_exist_file)
+
+
+def test_generate_host_file_without_setenv(monkeypatch):
+    def setenv(*args):
+        monkeypatch.setenv('INSTALLER_TYPE', args[0])
+        monkeypatch.setenv('INSTALLER_IP', args[1])
+
+    with pytest.raises(KeyError) as excinfo:
+        env.generate_host_file()
+    assert 'INSTALLER_TYPE' in str(excinfo.value)
+
+    with pytest.raises(ValueError) as excinfo:
+        setenv('fuel_1', '10.20.0.2')
+        env.generate_host_file()
+    assert 'fuel_1 is not supported' in str(excinfo.value)
+
+    with pytest.raises(ValueError) as excinfo:
+        setenv('fuel', '')
+        env.generate_host_file()
+    assert 'The value of environment variable INSTALLER_IP is empty' \
+           in str(excinfo.value)
+
+
+def test_generate_host_file(monkeypatch, tmpdir):
+    monkeypatch.setenv('INSTALLER_TYPE', 'fuel')
+    monkeypatch.setenv('INSTALLER_IP', '10.20.0.2')
+    hostfile = tmpdir.mkdir('qtip').join('hosts')
+    hostfile.write('')
+    assert env.generate_host_file(str(hostfile))
+
+
+def test_generate_keypair():
+    with mock.patch('os.system') as mock_os:
+        env.generate_keypair()
+        assert mock_os.call_count == 1
+
+
+def test_pass_keypair(monkeypatch):
+    monkeypatch.setattr(time, 'sleep', lambda s: None)
+    with mock.patch('os.system') as mock_os:
+        env.pass_keypair('10.20.0.10')
+        assert mock_os.call_count == 2
+
+
+@pytest.mark.parametrize("stderrinfo, expected", [
+    ('', True),
+    ('sorry', False)
+])
+@mock.patch('paramiko.SSHClient')
+def test_ssh_is_ok(mock_sshclient, stderrinfo, expected):
+    stderr = mock.MagicMock()
+    stderr.readlines.return_value = stderrinfo
+    test_ssh_client = mock_sshclient.return_value
+    test_ssh_client.exec_command.return_value = ('', '', stderr)
+    result = env.ssh_is_ok('10.20.0.3')
+    assert result == expected
+    test_ssh_client.connect.assert_called_once_with(
+        '10.20.0.3', key_filename=env.PRIVATE_KEY)
+    test_ssh_client.exec_command.assert_called_with('uname')