hwpack testsuite fails on installed system

[Loïc Minier]

python -m testtools.run hwpack.tests.test_suite
Tests running...
======================================================================
FAIL: hwpack.tests.test_script.ScriptTests.test_builds_a_hwpack
----------------------------------------------------------------------
Text attachment: traceback
------------
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/testtools/runtest.py", line 169, in _run_user
    return fn(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/testtools/testcase.py", line 459, in _run_setup
    ret = self.setUp()
  File "/usr/lib/pymodules/python2.7/hwpack/tests/test_script.py", line 41, in setUp
    self.script_path = self.find_script()
  File "/usr/lib/pymodules/python2.7/hwpack/tests/test_script.py", line 59, in find_script
    "Could not find linaro-hwpack-create script to test.")
AssertionError: Could not find linaro-hwpack-create script to test.
------------
======================================================================
FAIL: hwpack.tests.test_script.ScriptTests.test_errors_on_missing_configfile
----------------------------------------------------------------------
Text attachment: traceback
------------
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/testtools/runtest.py", line 169, in _run_user
    return fn(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/testtools/testcase.py", line 459, in _run_setup
    ret = self.setUp()
  File "/usr/lib/pymodules/python2.7/hwpack/tests/test_script.py", line 41, in setUp
    self.script_path = self.find_script()
  File "/usr/lib/pymodules/python2.7/hwpack/tests/test_script.py", line 59, in find_script
    "Could not find linaro-hwpack-create script to test.")
AssertionError: Could not find linaro-hwpack-create script to test.
------------
======================================================================
FAIL: hwpack.tests.test_script.ScriptTests.test_errors_on_missing_configfile_argument
----------------------------------------------------------------------
Text attachment: traceback
------------
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/testtools/runtest.py", line 169, in _run_user
    return fn(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/testtools/testcase.py", line 459, in _run_setup
    ret = self.setUp()
  File "/usr/lib/pymodules/python2.7/hwpack/tests/test_script.py", line 41, in setUp
    self.script_path = self.find_script()
  File "/usr/lib/pymodules/python2.7/hwpack/tests/test_script.py", line 59, in find_script
    "Could not find linaro-hwpack-create script to test.")
AssertionError: Could not find linaro-hwpack-create script to test.
------------
======================================================================
FAIL: hwpack.tests.test_script.ScriptTests.test_errors_on_missing_version_argument
----------------------------------------------------------------------
Text attachment: traceback
------------
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/testtools/runtest.py", line 169, in _run_user
    return fn(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/testtools/testcase.py", line 459, in _run_setup
    ret = self.setUp()
  File "/usr/lib/pymodules/python2.7/hwpack/tests/test_script.py", line 41, in setUp
    self.script_path = self.find_script()
  File "/usr/lib/pymodules/python2.7/hwpack/tests/test_script.py", line 59, in find_script
    "Could not find linaro-hwpack-create script to test.")
AssertionError: Could not find linaro-hwpack-create script to test.
------------
Ran 316 tests in 8.746s

FAILED (failures=4)

[Loïc Minier (lool)]

I have a fix for this, but it requires:
* lp:~lool/linaro-image-tools/testsuite-when-installed to be merged
* some place to share find_command between hwpack and linaro_media_create
* diff which I'll attach

[Loïc Minier (lool)]

Ups, diff shouldn't remove linaro_media_create/utils.py.