#!/usr/bin/env python
#
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from __future__ import print_function

"""
This test verifies (on Windows systems) that we fail gracefully and
provide informative messages if someone tries to use a path name
with an invalid drive letter.
"""

__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

import os
import sys
from string import ascii_uppercase

import TestSCons

test = TestSCons.TestSCons()

if sys.platform != 'win32':
    msg = "Skipping drive-letter test on non-Windows platform '%s'\n" % sys.platform
    test.skip_test(msg)

bad_drive = None
for i in range(len(ascii_uppercase)-1, -1, -1):
    d = ascii_uppercase[i]
    if not os.path.isdir(d + ':' + os.sep):
        bad_drive = d + ':'
        break

if bad_drive is None:
    print("All drive letters appear to be in use.")
    print("Cannot test SCons handling of invalid Windows drive letters.")
    test.no_result(1);

test.write('SConstruct', """
def cat(env, source, target):
    target = str(target[0])
    source = list(map(str, source))
    print('cat(%%s) > %%s' %% (source, target))
    f = open(target, "wb")
    for src in source:
        f.write(open(src, "rb").read())
    f.close()

bad_drive = '%s'
env = Environment(BUILDERS={'Build':Builder(action=cat)})
env.Build('aaa.out', 'aaa.in')
env.Build(bad_drive + 'no_target_1', 'bbb.exists')
env.Build(bad_drive + 'no_target_2', 'ccc.does_not_exist')
env.Build('ddd.out', bad_drive + 'no_source')
""" % (bad_drive + '\\' + os.sep))

bad_drive = bad_drive + os.sep

test.write("aaa.in", "aaa.in\n")
test.write("bbb.exists", "bbb.exists\n")

test.write("no_target_1", "no_target_1\n")
test.write("no_target_2", "no_target_2\n")
test.write("no_source", "no_source\n")

test.run(arguments = 'aaa.out')

test.must_match('aaa.out', "aaa.in\n", mode='r')

# This next test used to provide a slightly different error message:
# "scons: *** Do not know how to make File target `%snot_mentioned'.  Stop.\n"
# Right now, it doesn't seem important enough to track down exactly
# why this changed and fix it, but we'll preserve it here in case it
# becomes an issue or some refactoring restores the old behavior.

test.run(arguments = bad_drive + 'not_mentioned',
         stderr = "scons: *** Do not know how to make File target `%snot_mentioned' (%snot_mentioned).  Stop.\n" % (bad_drive, bad_drive),
         status = 2)

expect = "scons: *** [%sno_target_1] No drive `%s' for target `%sno_target_1'.\n" % (bad_drive, bad_drive, bad_drive)
test.run(arguments=bad_drive + 'no_target_1', stderr=expect, status=2)

expect = "scons: *** [%sno_target_2] Source `ccc.does_not_exist' not found, needed by target `%sno_target_2'.\n" % (bad_drive, bad_drive)
test.run(arguments=bad_drive + 'no_target_2', stderr=expect, status=2)

expect = "scons: *** [ddd.out] Source `%sno_source' not found, needed by target `ddd.out'.\n" % bad_drive
test.run(arguments='ddd.out', stderr=expect, status=2)

test.pass_test()

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