Remove hacky setup for CustomTargetIndex tests in fs.relative_to()

test cases/common/220 fs module/subdir/meson.build

@@ -7,35 +7,19 @@ assert(fs.is_samepath(subdirfiles[0], 'subdirfile.txt'), 'is_samepath not detect
 
 # More relative_to to test subdir/builddir components
 
-python3 = find_program('python3')
 build_to_src = fs.relative_to(meson.current_source_dir(), meson.current_build_dir())
 src_to_build = fs.relative_to(meson.current_build_dir(), meson.current_source_dir())
 
 btgt = executable('btgt', 'btgt.c')
-ctgt = custom_target(
-  'copied-files',
-  command: [
-    python3,
-    '-c',
-    'import shutil; shutil.copyfile("@INPUT0@", "@OUTPUT0@"); shutil.copyfile("@INPUT1@", "@OUTPUT1@")'
-  ],
-  input: [
-    'subdirfile.txt',
-    'meson.build',
-  ],
-  output: [
-    'subdirfile.txt',
-    'meson.build',
-  ],
-)
+ctgt = fs.copyfile('subdirfile.txt')
 
 if build_machine.system() == 'windows'
   # Test that CustomTarget works
   assert(fs.relative_to('subdirfile.txt', ctgt) == '..\\@0@\\subdirfile.txt'.format(build_to_src))
   assert(fs.relative_to(ctgt, 'subdirfile.txt') == '..\\@0@\\subdirfile.txt'.format(src_to_build))
   # Test that CustomTargetIndex works
-  assert(fs.relative_to('meson.build', ctgt[1]) == '..\\@0@\\meson.build'.format(build_to_src))
-  assert(fs.relative_to(ctgt[1], 'meson.build') == '..\\@0@\\meson.build'.format(src_to_build))
+  assert(fs.relative_to('subdirfile.txt', ctgt[0]) == '..\\@0@\\subdirfile.txt'.format(build_to_src))
+  assert(fs.relative_to(ctgt[0], 'subdirfile.txt') == '..\\@0@\\subdirfile.txt'.format(src_to_build))
   # Test that BuildTarget works
   assert(fs.relative_to('subdirfile.txt', btgt) == '..\\@0@\\subdirfile.txt'.format(build_to_src))
   assert(fs.relative_to(btgt, 'subdirfile.txt') == '..\\@0@\\btgt.exe'.format(src_to_build))
@@ -44,8 +28,8 @@ else
   assert(fs.relative_to('subdirfile.txt', ctgt) == '../@0@/subdirfile.txt'.format(build_to_src))
   assert(fs.relative_to(ctgt, 'subdirfile.txt') == '../@0@/subdirfile.txt'.format(src_to_build))
   # Test that CustomTargetIndex works
-  assert(fs.relative_to('meson.build', ctgt[1]) == '../@0@/meson.build'.format(build_to_src))
-  assert(fs.relative_to(ctgt[1], 'meson.build') == '../@0@/meson.build'.format(src_to_build))
+  assert(fs.relative_to('subdirfile.txt', ctgt[0]) == '../@0@/subdirfile.txt'.format(build_to_src))
+  assert(fs.relative_to(ctgt[0], 'subdirfile.txt') == '../@0@/subdirfile.txt'.format(src_to_build))
   # Test that BuildTarget works
   assert(fs.relative_to('subdirfile.txt', btgt) == '../@0@/subdirfile.txt'.format(build_to_src))
   if host_machine.system() == 'windows'