cmake_parse_arguments: Add additional unit tests

Add additional unit tests for some corner cases in argument splitting.

Tests/RunCMake/cmake_parse_arguments/ArgvN.cmake

 include(${CMAKE_CURRENT_LIST_DIR}/test_utils.cmake)
 
-function(test_multi list)
-  set(i 0)
-  foreach(value IN LISTS ${list})
-    math(EXPR j "${i} + 1")
-    set(${list}[${i}] "${value}")
-    TEST(${list}[${i}] "${ARGV${j}}")
-    set(i ${j})
-  endforeach()
-endfunction()
-
 function(test1)
   cmake_parse_arguments(PARSE_ARGV 0
     pref "OPT1;OPT2" "SINGLE1;SINGLE2" "MULTI1;MULTI2")
@@ -33,7 +23,7 @@ function(test2 arg1)
   TEST(pref_OPT2 FALSE)
   TEST(pref_SINGLE1 "foo;bar")
   TEST(pref_SINGLE2 UNDEFINED)
-  test_multi(pref_MULTI1 bar "foo;bar")
+  TEST(pref_MULTI1 bar "foo;bar")
   TEST(pref_MULTI2 UNDEFINED)
   TEST(pref_UNPARSED_ARGUMENTS UNDEFINED)
 endfunction()
@@ -43,6 +33,6 @@ function(test3 arg1)
   cmake_parse_arguments(PARSE_ARGV 0
     pref "" "" "")
 
-  test_multi(pref_UNPARSED_ARGUMENTS "foo;bar" dog cat)
+  TEST(pref_UNPARSED_ARGUMENTS "foo;bar" dog cat)
 endfunction()
 test3("foo;bar" dog cat)

Tests/RunCMake/cmake_parse_arguments/CornerCasesArgvN.cmake

+include(${CMAKE_CURRENT_LIST_DIR}/test_utils.cmake)
+
+function(test1)
+  cmake_parse_arguments(PARSE_ARGV 0
+    mpref "" "" "MULTI")
+
+  TEST(mpref_MULTI foo "foo\;bar")
+
+  cmake_parse_arguments(PARSE_ARGV 1
+    upref "" "" "MULTI")
+
+  TEST(upref_UNPARSED_ARGUMENTS foo "foo\;bar")
+endfunction()
+test1(MULTI foo "foo\;bar")
+
+function(test2)
+  cmake_parse_arguments(PARSE_ARGV 0
+    mpref "" "" "MULTI")
+
+  TEST(mpref_MULTI "foo;" "bar;")
+
+  cmake_parse_arguments(PARSE_ARGV 1
+    upref "" "" "MULTI")
+
+  TEST(upref_UNPARSED_ARGUMENTS "foo;" "bar;")
+endfunction()
+test2(MULTI "foo;" "bar;")
+
+function(test3)
+  cmake_parse_arguments(PARSE_ARGV 0
+    mpref "" "" "MULTI")
+
+  TEST(mpref_MULTI "[foo;]" "bar\\")
+
+  cmake_parse_arguments(PARSE_ARGV 1
+    upref "" "" "MULTI")
+
+  TEST(upref_UNPARSED_ARGUMENTS "[foo;]" "bar\\")
+endfunction()
+test3(MULTI "[foo;]" "bar\\")
+
+function(test4)
+  cmake_parse_arguments(PARSE_ARGV 0
+    mpref "" "" "MULTI")
+
+  TEST(mpref_MULTI foo "bar;none")
+
+  cmake_parse_arguments(PARSE_ARGV 1
+    upref "" "" "MULTI")
+
+  TEST(upref_UNPARSED_ARGUMENTS foo "bar;none")
+endfunction()
+test4(MULTI foo bar\\ none)

Tests/RunCMake/cmake_parse_arguments/RunCMakeTest.cmake

@@ -10,3 +10,4 @@ run_cmake(BadArgvN1)
 run_cmake(BadArgvN2)
 run_cmake(BadArgvN3)
 run_cmake(BadArgvN4)
+run_cmake(CornerCasesArgvN)

Tests/RunCMake/cmake_parse_arguments/Utils.cmake

@@ -17,4 +17,5 @@ SET (asdf "some value")
 TEST(asdf "some value")
 
 SET (asdf some list)
+TEST(asdf some list)
 TEST(asdf "some;list")

Tests/RunCMake/cmake_parse_arguments/test_utils.cmake

-macro(TEST variable)
-  SET(expected "${ARGN}")
-  if ( "${expected}" STREQUAL "UNDEFINED" )
-    if (DEFINED ${variable})
-      message(FATAL_ERROR "'${variable}' shall be undefined but has value '${${variable}}'")
-    endif()
-  elseif( "${expected}" STREQUAL "FALSE" )
-    if (NOT ${variable} STREQUAL "FALSE")
-      message(FATAL_ERROR "'${variable}' shall be FALSE")
-    endif()
-  elseif( "${expected}" STREQUAL "TRUE" )
-    if (NOT ${variable} STREQUAL "TRUE")
-      message(FATAL_ERROR "'${variable}' shall be TRUE")
-    endif()
+function(TEST variable)
+  if(ARGC GREATER 2)
+    set(i 0)
+    foreach(value IN LISTS ${variable})
+      math(EXPR j "${i} + 1")
+      set(${variable}[${i}] "${value}")
+      TEST(${variable}[${i}] "${ARGV${j}}")
+      set(i ${j})
+    endforeach()
   else()
-    if (NOT ${variable} STREQUAL "${expected}")
-      message(FATAL_ERROR "'${variable}' shall be '${expected}'")
+    set(expected "${ARGN}")
+    if("${expected}" STREQUAL "UNDEFINED")
+      if(DEFINED ${variable})
+        message(FATAL_ERROR "'${variable}' shall be undefined but has value '${${variable}}'")
+      endif()
+    elseif("${expected}" STREQUAL "FALSE")
+      if(NOT ${variable} STREQUAL "FALSE")
+        message(FATAL_ERROR "'${variable}' shall be FALSE")
+      endif()
+    elseif("${expected}" STREQUAL "TRUE")
+      if(NOT ${variable} STREQUAL "TRUE")
+        message(FATAL_ERROR "'${variable}' shall be TRUE")
+      endif()
+    else()
+      if(NOT ${variable} STREQUAL "${expected}")
+        message(FATAL_ERROR "'${variable}' shall be '${expected}'")
+      endif()
     endif()
   endif()
-endmacro()
+endfunction()