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35 """Test gmxapi functionality described in roadmap.rst."""
46 """FR3: Output proxy can be used as input."""
47 with tempfile.TemporaryDirectory() as directory:
48 file1 = os.path.join(directory, 'input')
49 file2 = os.path.join(directory, 'output')
51 # Make a shell script that acts like the type of tool we are wrapping.
52 scriptname = os.path.join(directory, 'clicommand.sh')
53 with open(scriptname, 'w') as fh:
54 fh.write('\n'.join(['#!' + shutil.which('bash'),
55 '# Concatenate an input file and a string argument to an output file.',
56 '# Mock a utility with the tested syntax.',
57 '# clicommand.sh "some words" -i inputfile -o outputfile',
58 'echo $1 | cat $3 - > $5\n']))
59 os.chmod(scriptname, stat.S_IRWXU)
62 filewriter1 = gmx.commandline_operation(scriptname,
64 input_files={'-i': os.devnull},
65 output_files={'-o': file1})
68 filewriter2 = gmx.commandline_operation(scriptname,
70 input_files={'-i': filewriter1.output.file['-o']},
71 output_files={'-o': file2})
74 # Check that the files have the expected lines
75 with open(file1, 'r') as fh:
76 lines = [text.rstrip() for text in fh]
77 assert len(lines) == 1
78 assert lines[0] == line1
79 with open(file2, 'r') as fh:
80 lines = [text.rstrip() for text in fh]
81 assert len(lines) == 2
82 assert lines[0] == line1
83 assert lines[1] == line2