set(rules_ninja "${RunCMake_TEST_BINARY_DIR}/CMakeFiles/rules.ninja")
if(NOT EXISTS "${rules_ninja}")
  set(RunCMake_TEST_FAILED "Generator output file is missing:\n ${rules_ninja}")
  return()
endif()

file(READ "${rules_ninja}" rules_ninja)
if(rules_ninja MATCHES "msvc_deps_prefix = ([^\r\n]*)\n")
  set(actual "${CMAKE_MATCH_1}")
endif()

if(NOT actual STREQUAL expect)
  string(HEX "${actual}" actual_hex)
  string(HEX "${expect}" expect_hex)
  set(RunCMake_TEST_FAILED "Expected byte sequence\n '${expect}' (${expect_hex})\nbut got\n '${actual}' (${actual_hex})")
  return()
endif()