Merge topic 'string-repeat'

536cca60ea string: introduce `REPEAT` sub-command

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3239

Tests/RunCMake/string/Repeat.cmake

@@ -0,0 +1,45 @@
+string(REPEAT "q" 4 q_out)
+
+if(NOT DEFINED q_out)
+  message(FATAL_ERROR "q_out is not defined")
+endif()
+
+if(NOT q_out STREQUAL "qqqq")
+  message(FATAL_ERROR "unexpected result")
+endif()
+
+string(REPEAT "1234" 0 zero_out)
+
+if(NOT DEFINED zero_out)
+  message(FATAL_ERROR "zero_out is not defined")
+endif()
+
+if(NOT zero_out STREQUAL "")
+  message(FATAL_ERROR "unexpected result")
+endif()
+
+unset(zero_out)
+
+string(REPEAT "" 100 zero_out)
+
+if(NOT DEFINED zero_out)
+  message(FATAL_ERROR "zero_out is not defined")
+endif()
+
+if(NOT zero_out STREQUAL "")
+  message(FATAL_ERROR "unexpected result")
+endif()
+
+string(REPEAT "1" 1 one_out)
+
+if(NOT one_out STREQUAL "1")
+  message(FATAL_ERROR "unexpected result")
+endif()
+
+unset(one_out)
+
+string(REPEAT "one" 1 one_out)
+
+if(NOT one_out STREQUAL "one")
+  message(FATAL_ERROR "unexpected result")
+endif()

Tests/RunCMake/string/RepeatNegativeCount-result.txt

@@ -0,0 +1 @@
+1

Tests/RunCMake/string/RepeatNegativeCount-stderr.txt

@@ -0,0 +1,4 @@
+CMake Error at RepeatNegativeCount.cmake:[0-9]+ \(string\):
+  repeat count is not a positive number.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)

Tests/RunCMake/string/RepeatNegativeCount.cmake

@@ -0,0 +1 @@
+string(REPEAT "blah" -1 out)

Tests/RunCMake/string/RepeatNoArgs-result.txt

@@ -0,0 +1 @@
+1

Tests/RunCMake/string/RepeatNoArgs-stderr.txt

@@ -0,0 +1,4 @@
+CMake Error at RepeatNoArgs.cmake:[0-9]+ \(string\):
+  sub-command REPEAT requires three arguments.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)

Tests/RunCMake/string/RepeatNoArgs.cmake

@@ -0,0 +1 @@
+string(REPEAT)

Tests/RunCMake/string/RunCMakeTest.cmake

@@ -33,3 +33,7 @@ run_cmake(UTF-16BE)
 run_cmake(UTF-16LE)
 run_cmake(UTF-32BE)
 run_cmake(UTF-32LE)
+
+run_cmake(Repeat)
+run_cmake(RepeatNoArgs)
+run_cmake(RepeatNegativeCount)