def test_codify_command(self, capsys):
"""CLI `codify` command prints correct output"""
# With private elements
main("codify -p pydicom::nested_priv_SQ.dcm".split())
out, _ = capsys.readouterr()
assert "add_new((0x0001, 0x0001)" in out
# Without private elements
main("codify pydicom::nested_priv_SQ.dcm".split())
out, _ = capsys.readouterr()
assert "add_new((0x0001, 0x0001)" not in out
def test_show_command(self, capsys):
"""CLI `show` command prints correct output"""
main("show pydicom::MR_small_RLE.dcm".split())
out, err = capsys.readouterr()
assert "Instance Creation Date DA: '20040826'" in out
assert out.endswith("OB: Array of 126 elements\n")
assert err == ""
# Get a specific data element
main("show pydicom::MR_small_RLE.dcm::LargestImagePixelValue".split())
out, _ = capsys.readouterr()
assert "4000" == out.strip()
def test_show_options(self, capsys):
"""CLI `show` command with options prints correct output"""
# Quiet option, image file
main("show -q pydicom::MR_small_RLE.dcm".split())
out, err = capsys.readouterr()
assert out.startswith("SOPClassUID: MR Image Storage")
assert out.endswith("Rows: 64\nColumns: 64\nSliceLocation: 0.0000\n")
assert err == ""
# 'Quiet' option, RTPLAN file
main("show -q pydicom::rtplan.dcm".split())
out, err = capsys.readouterr()
assert out.endswith(
"Beam 1 'Field 1' TREATMENT STATIC PHOTON energy 6.00000000000000 "
"gantry 0.0, coll 0.0, couch 0.0 "
"(0 wedges, 0 comps, 0 boli, 0 blocks)\n")
assert err == ""
# Top-level-only option, also different file for more variety
main("show -t pydicom::nested_priv_SQ.dcm".split())
out, err = capsys.readouterr()
assert "(0001, 0001) Private Creator" in out
assert "UN: b'Nested SQ'" not in out
assert err == ""
# Exclude private option
main("show -x pydicom::nested_priv_SQ.dcm".split())
out, err = capsys.readouterr()
assert "(0001, 0001) Private Creator" not in out
assert err == ""
def test_help(self, capsys):
"""CLI `help` command gives expected output"""
# With subcommand
main("help show".split())
out, err = capsys.readouterr()
assert out.startswith("usage: pydicom show [-h] [")
assert err == ""
# No subcommand following
main(["help"])
out, _ = capsys.readouterr()
assert "Available subcommands:" in out
# Non-existent subcommand following
main("help DoesntExist".split())
out, _ = capsys.readouterr()
assert "Available subcommands:" in out
def test_codify_data_element(self, capsys):
"""CLI `codify` command raises error if not a Dataset"""
with pytest.raises(NotImplementedError):
main("codify pydicom::rtplan.dcm::RTPlanLabel".split())
def test_bare_command(self, capsys):
"""CLI `pydicom` with no arguments displays help"""
main([])
out, _ = capsys.readouterr()
assert out.startswith("usage: pydicom [-h] {")