init repo.

third_party/gflags/cmake/execute_test.cmake

@@ -0,0 +1,53 @@
+# ----------------------------------------------------------------------------
+# sanitize string stored in variable for use in regular expression.
+macro (sanitize_for_regex STRVAR)
+  string (REGEX REPLACE "([.+*?^$()])" "\\\\\\1" ${STRVAR} "${${STRVAR}}")
+endmacro ()
+
+# ----------------------------------------------------------------------------
+# script arguments
+if (NOT COMMAND)
+  message (FATAL_ERROR "Test command not specified!")
+endif ()
+if (NOT DEFINED EXPECTED_RC)
+  set (EXPECTED_RC 0)
+endif ()
+if (EXPECTED_OUTPUT)
+  sanitize_for_regex(EXPECTED_OUTPUT)
+endif ()
+if (UNEXPECTED_OUTPUT)
+  sanitize_for_regex(UNEXPECTED_OUTPUT)
+endif ()
+
+# ----------------------------------------------------------------------------
+# set a few environment variables (useful for --tryfromenv)
+set (ENV{FLAGS_undefok} "foo,bar")
+set (ENV{FLAGS_weirdo}  "")
+set (ENV{FLAGS_version} "true")
+set (ENV{FLAGS_help}    "false")
+
+# ----------------------------------------------------------------------------
+# execute test command
+execute_process(
+  COMMAND ${COMMAND}
+  RESULT_VARIABLE RC
+  OUTPUT_VARIABLE OUTPUT
+  ERROR_VARIABLE  OUTPUT
+)
+
+if (OUTPUT)
+  message ("${OUTPUT}")
+endif ()
+
+# ----------------------------------------------------------------------------
+# check test result
+if (NOT RC EQUAL EXPECTED_RC)
+  string (REPLACE ";" " " COMMAND "${COMMAND}")
+  message (FATAL_ERROR "Command:\n\t${COMMAND}\nExit status is ${RC}, expected ${EXPECTED_RC}")
+endif ()
+if (EXPECTED_OUTPUT AND NOT OUTPUT MATCHES "${EXPECTED_OUTPUT}")
+  message (FATAL_ERROR "Test output does not match expected output: ${EXPECTED_OUTPUT}")
+endif ()
+if (UNEXPECTED_OUTPUT AND OUTPUT MATCHES "${UNEXPECTED_OUTPUT}")
+  message (FATAL_ERROR "Test output matches unexpected output: ${UNEXPECTED_OUTPUT}")
+endif ()