Adding cd context handling tests and fixing some absolute path issues

tests/data/cd_context/pie_tasks.py

@@ -0,0 +1,10 @@
+import os
+
+from pie import *
+
+
+@task
+def cdContext():
+    with cd('..'):
+        print(os.getcwd())
+    print(os.getcwd())

tests/test_context_manager.py

@@ -1,9 +1,23 @@
+import os
+
 import pytest
 
 
 @pytest.mark.parametrize('pie_tasks_path',['venv_context'],indirect=['pie_tasks_path'])
 def test_venv_context(pie,pie_tasks_path,pie_mock_cmd):
     pie.main(['venvContext'])
+    cwd=os.getcwd()
+    first_activate=r'{}\first\Scripts\activate.bat'.format(cwd)
+    second_activate=r'{}\second\Scripts\activate.bat'.format(cwd)
     # TODO: only correct on Windows
     assert len(pie_mock_cmd.cmds)==1
-    assert pie_mock_cmd.cmds[0][0][0]==r'cmd /c "first\Scripts\activate.bat && cmd /c "second\Scripts\activate.bat && blah""'
+    assert pie_mock_cmd.cmds[0][0][0]==r'cmd /c "{} && cmd /c "{} && blah""'.format(first_activate,second_activate)
+
+
+@pytest.mark.parametrize('pie_tasks_path',['cd_context'],indirect=['pie_tasks_path'])
+def test_cd_context(pie,capsys,pie_tasks_path,pie_mock_cmd):
+    pie.main(['cdContext'])
+    cwd=os.getcwd()
+    assert len(pie_mock_cmd.cmds)==0
+    out,err=capsys.readouterr()
+    assert out=='{}\n{}\n'.format(os.path.dirname(cwd),cwd)

tests/test_pie_requirements.py

@@ -1,3 +1,5 @@
+import os
+
 import pytest
 
 
@@ -16,7 +18,9 @@ def test_create_venv(pie,capsys,pie_tasks_path,pie_mock_cmd):
     # TODO: improve checking, it's possible the wrong venv could be activated and we wouldn't detect it
     assert len(pie_mock_cmd.cmds)==3
     # TODO: more specific testing for py2/3
-    assert pie_mock_cmd.cmds[0][0][0]=='python -m virtualenv --system-site-packages ".venv-pie"' or pie_mock_cmd.cmds[0][0][0]=='python -m venv --system-site-packages ".venv-pie"'
+    venv_path=os.path.join(os.getcwd(),'.venv-pie')
+
+    assert pie_mock_cmd.cmds[0][0][0]=='python -m virtualenv --system-site-packages "{}"'.format(venv_path) or pie_mock_cmd.cmds[0][0][0]=='python -m venv --system-site-packages "{}"'.format(venv_path)
     assert pie_mock_cmd.cmds[1][0][0].endswith('python -m pip install -U pip"')
     assert pie_mock_cmd.cmds[2][0][0].endswith('python -m pip install -r requirements.pie.txt"')