+def test_stripped_path_components():
+ with no_lingering_errors():
+ WVPASSEQ(stripped_path_components('/', []), [('', '/')])
+ WVPASSEQ(stripped_path_components('/', ['']), [('', '/')])
+ WVPASSEQ(stripped_path_components('/', ['/']), [('', '/')])
+ WVPASSEQ(stripped_path_components('/foo', ['/']),
+ [('', '/'), ('foo', '/foo')])
+ WVPASSEQ(stripped_path_components('/', ['/foo']), [('', '/')])
+ WVPASSEQ(stripped_path_components('/foo', ['/bar']),
+ [('', '/'), ('foo', '/foo')])
+ WVPASSEQ(stripped_path_components('/foo', ['/foo']), [('', '/foo')])
+ WVPASSEQ(stripped_path_components('/foo/bar', ['/foo']),
+ [('', '/foo'), ('bar', '/foo/bar')])
+ WVPASSEQ(stripped_path_components('/foo/bar', ['/bar', '/foo', '/baz']),
+ [('', '/foo'), ('bar', '/foo/bar')])
+ WVPASSEQ(stripped_path_components('/foo/bar/baz', ['/foo/bar/baz']),
+ [('', '/foo/bar/baz')])
+ WVEXCEPT(Exception, stripped_path_components, 'foo', [])
+
+
+@wvtest
+def test_grafted_path_components():
+ with no_lingering_errors():
+ WVPASSEQ(grafted_path_components([('/chroot', '/')], '/foo'),
+ [('', '/'), ('foo', '/foo')])
+ WVPASSEQ(grafted_path_components([('/foo/bar', '/')],
+ '/foo/bar/baz/bax'),
+ [('', '/foo/bar'),
+ ('baz', '/foo/bar/baz'),
+ ('bax', '/foo/bar/baz/bax')])
+ WVPASSEQ(grafted_path_components([('/foo/bar/baz', '/bax')],
+ '/foo/bar/baz/1/2'),
+ [('', None),
+ ('bax', '/foo/bar/baz'),
+ ('1', '/foo/bar/baz/1'),
+ ('2', '/foo/bar/baz/1/2')])
+ WVPASSEQ(grafted_path_components([('/foo', '/bar/baz/bax')],
+ '/foo/bar'),
+ [('', None),
+ ('bar', None),
+ ('baz', None),
+ ('bax', '/foo'),
+ ('bar', '/foo/bar')])
+ WVPASSEQ(grafted_path_components([('/foo/bar/baz', '/a/b/c')],
+ '/foo/bar/baz'),
+ [('', None), ('a', None), ('b', None), ('c', '/foo/bar/baz')])
+ WVPASSEQ(grafted_path_components([('/', '/a/b/c/')], '/foo/bar'),
+ [('', None), ('a', None), ('b', None), ('c', '/'),
+ ('foo', '/foo'), ('bar', '/foo/bar')])
+ WVEXCEPT(Exception, grafted_path_components, 'foo', [])
+
+
+@wvtest
+def test_readpipe():
+ with no_lingering_errors():
+ x = readpipe(['echo', '42'])
+ WVPASSEQ(x, '42\n')
+ try:
+ readpipe(['bash', '-c', 'exit 42'])
+ except Exception as ex:
+ WVPASSEQ(str(ex),
+ "subprocess 'bash -c exit 42' failed with status 42")
+
+
+@wvtest
+def test_batchpipe():
+ with no_lingering_errors():
+ for chunk in batchpipe(['echo'], []):
+ WVPASS(False)
+ out = ''
+ for chunk in batchpipe(['echo'], ['42']):
+ out += chunk
+ WVPASSEQ(out, '42\n')
+ try:
+ batchpipe(['bash', '-c'], ['exit 42'])
+ except Exception as ex:
+ WVPASSEQ(str(ex),
+ "subprocess 'bash -c exit 42' failed with status 42")
+ args = [str(x) for x in range(6)]
+ # Force batchpipe to break the args into batches of 3. This
+ # approach assumes all args are the same length.
+ arg_max = \
+ helpers._argmax_base(['echo']) + helpers._argmax_args_size(args[:3])
+ batches = batchpipe(['echo'], args, arg_max=arg_max)
+ WVPASSEQ(next(batches), '0 1 2\n')
+ WVPASSEQ(next(batches), '3 4 5\n')
+ WVPASSEQ(next(batches, None), None)
+ batches = batchpipe(['echo'], [str(x) for x in range(5)], arg_max=arg_max)
+ WVPASSEQ(next(batches), '0 1 2\n')
+ WVPASSEQ(next(batches), '3 4\n')
+ WVPASSEQ(next(batches, None), None)
+