if: Add "TEST <test>" condition

if(TEST TestNameThatExists) will return true if a test with the name
TestNameThatExists has been added with add_test.  The syntax is similar
to if(TARGET TargetName).  Since use of "TEST" as an argument to if()
could previously be interpreted as a non-keyword argument, add policy
CMP0064 to treat it as a keyword as NEW behavior.

11 files changed, 46 insertions, 0 deletions

diff --git a/Tests/RunCMake/CMP0064/CMP0064-NEW.cmake b/Tests/RunCMake/CMP0064/CMP0064-NEW.cmake
new file mode 100644
index 0000000..cdf50e9
--- /dev/null
+++ b/Tests/RunCMake/CMP0064/CMP0064-NEW.cmake
@@ -0,0 +1,5 @@
+cmake_policy(SET CMP0064 NEW)
+
+if(NOT TEST TestThatDoesNotExist)
+  message(STATUS "if NOT TestThatDoesNotExist is true")
+endif()
diff --git a/Tests/RunCMake/CMP0064/CMP0064-OLD.cmake b/Tests/RunCMake/CMP0064/CMP0064-OLD.cmake
new file mode 100644
index 0000000..bffd3f3
--- /dev/null
+++ b/Tests/RunCMake/CMP0064/CMP0064-OLD.cmake
@@ -0,0 +1,7 @@
+cmake_policy(SET CMP0064 OLD)
+
+if(TEST)
+  message(FATAL_ERROR "TEST was not recognized to be undefined")
+else()
+  message(STATUS "TEST was treated as a variable")
+endif()
diff --git a/Tests/RunCMake/CMP0064/CMP0064-WARN.cmake b/Tests/RunCMake/CMP0064/CMP0064-WARN.cmake
new file mode 100644
index 0000000..bffd3f3
--- /dev/null
+++ b/Tests/RunCMake/CMP0064/CMP0064-WARN.cmake
@@ -0,0 +1,7 @@
+cmake_policy(SET CMP0064 OLD)
+
+if(TEST)
+  message(FATAL_ERROR "TEST was not recognized to be undefined")
+else()
+  message(STATUS "TEST was treated as a variable")
+endif()
diff --git a/Tests/RunCMake/CMP0064/CMakeLists.txt b/Tests/RunCMake/CMP0064/CMakeLists.txt
new file mode 100644
index 0000000..74b3ff8
--- /dev/null
+++ b/Tests/RunCMake/CMP0064/CMakeLists.txt
@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 3.3)
+project(${RunCMake_TEST} NONE)
+include(${RunCMake_TEST}.cmake)
diff --git a/Tests/RunCMake/CMP0064/RunCMakeTest.cmake b/Tests/RunCMake/CMP0064/RunCMakeTest.cmake
new file mode 100644
index 0000000..26e0a91
--- /dev/null
+++ b/Tests/RunCMake/CMP0064/RunCMakeTest.cmake
@@ -0,0 +1,5 @@
+include(RunCMake)
+
+run_cmake(CMP0064-OLD)
+run_cmake(CMP0064-WARN)
+run_cmake(CMP0064-NEW)
diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt
index 607e799..20d47b2 100644
--- a/Tests/RunCMake/CMakeLists.txt
+++ b/Tests/RunCMake/CMakeLists.txt
@@ -103,6 +103,7 @@ add_RunCMake_test(CMP0055)
 add_RunCMake_test(CMP0057)
 add_RunCMake_test(CMP0059)
 add_RunCMake_test(CMP0060)
+add_RunCMake_test(CMP0064)
 if(CMAKE_GENERATOR MATCHES "Make")
   add_RunCMake_test(Make)
 endif()
diff --git a/Tests/RunCMake/if/RunCMakeTest.cmake b/Tests/RunCMake/if/RunCMakeTest.cmake
index 2c0c4d7..3f4d2a2 100644
--- a/Tests/RunCMake/if/RunCMakeTest.cmake
+++ b/Tests/RunCMake/if/RunCMakeTest.cmake
@@ -4,3 +4,6 @@ run_cmake(InvalidArgument1)
 run_cmake(IsDirectory)
 run_cmake(IsDirectoryLong)
 run_cmake(elseif-message)
+
+run_cmake(TestNameThatExists)
+run_cmake(TestNameThatDoesNotExist)
diff --git a/Tests/RunCMake/if/TestNameThatDoesNotExist-stdout.txt b/Tests/RunCMake/if/TestNameThatDoesNotExist-stdout.txt
new file mode 100644
index 0000000..8874ca8
--- /dev/null
+++ b/Tests/RunCMake/if/TestNameThatDoesNotExist-stdout.txt
@@ -0,0 +1 @@
+TestThatDoesNotExist is false
diff --git a/Tests/RunCMake/if/TestNameThatDoesNotExist.cmake b/Tests/RunCMake/if/TestNameThatDoesNotExist.cmake
new file mode 100644
index 0000000..74bc8b0
--- /dev/null
+++ b/Tests/RunCMake/if/TestNameThatDoesNotExist.cmake
@@ -0,0 +1,6 @@
+cmake_policy(SET CMP0064 NEW)
+if(TEST TestThatDoesNotExist)
+  message(FATAL_ERROR "if TestThatDoesNotExist is true")
+else()
+  message(STATUS "if TestThatDoesNotExist is false")
+endif()
diff --git a/Tests/RunCMake/if/TestNameThatExists-stdout.txt b/Tests/RunCMake/if/TestNameThatExists-stdout.txt
new file mode 100644
index 0000000..54911bc
--- /dev/null
+++ b/Tests/RunCMake/if/TestNameThatExists-stdout.txt
@@ -0,0 +1 @@
+TestThatExists is true
diff --git a/Tests/RunCMake/if/TestNameThatExists.cmake b/Tests/RunCMake/if/TestNameThatExists.cmake
new file mode 100644
index 0000000..65c2b46
--- /dev/null
+++ b/Tests/RunCMake/if/TestNameThatExists.cmake
@@ -0,0 +1,7 @@
+cmake_policy(SET CMP0064 NEW)
+add_test(NAME TestThatExists COMMAND ${CMAKE_COMMAND} -E echo "A CMake Test")
+if(TEST TestThatExists)
+  message(STATUS "if TestThatExists is true")
+else()
+  message(FATAL_ERROR "if TestThatExists is false")
+endif()