Fix tests under colord >= 1.4.3. (Closes: #908900)

# along with diffoscope.  If not, see <https://www.gnu.org/licenses/>.

import pytest

import subprocess

from diffoscope.config import Config

from diffoscope.comparators.icc import IccFile

from diffoscope.comparators.missing_file import MissingFile

from ..utils.data import load_fixture, get_data

from ..utils.tools import skip_unless_tools_exist

from ..utils.tools import skip_unless_tools_exist, skip_unless_tool_is_at_least

icc1 = load_fixture('test1.icc')

icc2 = load_fixture('test2.icc')

def cd_iccdump_version():

    """

    The `cd-iccdump` command has no --version command and, whilst the `colord`

    binary does, it relies on the daemon running to return any output.

    Therefore we hackily compare the output (via the line length) of colord

    1.4.3:

        "  Profile ID    = 0477fa4bb5ae5ae9a778f5cd72eb45a4"

    ... versus, for example, colord 1.3.3:

        " Profile ID    = 0x0477fa4b"

    We don't massage the output (say, in an `Iccdump.filter` method) as it

    would remove the accuracy and, unfortunately, colord 1.4.3 also removes a

    somewhat-arbitrary newline too.

    """

    val = subprocess.check_output(('cd-iccdump', icc1().path)).decode('utf-8')

    for x in val.splitlines():

        if x.startswith('  Profile ID') and len(x) == 47:

            return '1.4.3'

    return '1.3.3'

def test_identification(icc1):

    assert isinstance(icc1, IccFile)

    return icc1.compare(icc2).details

@skip_unless_tools_exist('cd-iccdump')

@skip_unless_tool_is_at_least('cd-iccdump', cd_iccdump_version, '1.4.3')

def test_diff(differences):

    if 'ne_SU' in differences[0].unified_diff:

        pytest.skip("Endian-specific differences detected; see "

   Dev. Attrbts	= reflective, glossy

   Rndrng Intnt	= perceptual

   Creator	= lcms

-  Profile ID	= 0x0477fa4b

+  Profile ID	= 0x06017f17

-  Profile ID	= 0477fa4bb5ae5ae9a778f5cd72eb45a4

+  Profile ID	= 06017f17ec507191e9d859f2324fca53

 tag 00:

   sig	'desc' [0x64657363]

   size	38

   type	'mluc' [0x6d6c7563]

 Text:

   en_US:	sRGB [24 bytes]