Help: Link to properties in set_tests_properties.

Remove help for specific properties to their own help pages.

Help/command/set_tests_properties.rst

@@ -8,29 +8,7 @@ Set a property of the tests.
   set_tests_properties(test1 [test2...] PROPERTIES prop1 value1 prop2 value2)
 
 Set a property for the tests.  If the test is not found, CMake
-will report an error.  Generator expressions will be expanded the same
-as supported by the test's add_test call.  The properties include:
-
-WILL_FAIL: If set to true, this will invert the pass/fail flag of the
-test.
-
-PASS_REGULAR_EXPRESSION: If set, the test output will be checked
-against the specified regular expressions and at least one of the
-regular expressions has to match, otherwise the test will fail.
-
-::
-
-  Example: PASS_REGULAR_EXPRESSION "TestPassed;All ok"
-
-FAIL_REGULAR_EXPRESSION: If set, if the output will match to one of
-specified regular expressions, the test will fail.
-
-::
-
-  Example: FAIL_REGULAR_EXPRESSION "[^a-z]Error;ERROR;Failed"
-
-Both PASS_REGULAR_EXPRESSION and FAIL_REGULAR_EXPRESSION expect a list
-of regular expressions.
-
-TIMEOUT: Setting this will limit the test runtime to the number of
-seconds specified.
+will report an error.
+:manual:`Generator expressions <cmake-generator-expressions(7)>` will be
+expanded the same as supported by the test's :command:`add_test` call.  See
+:ref:`Test Properties` for the list of properties known to CMake.

Help/prop_test/FAIL_REGULAR_EXPRESSION.rst

@@ -4,5 +4,12 @@ FAIL_REGULAR_EXPRESSION
 If the output matches this regular expression the test will fail.
 
 If set, if the output matches one of specified regular expressions,
-the test will fail.For example: FAIL_REGULAR_EXPRESSION
-"[^a-z]Error;ERROR;Failed"
+the test will fail.  Example:
+
+.. code-block:: cmake
+
+  set_tests_properties(mytest PROPERTIES
+    FAIL_REGULAR_EXPRESSION "[^a-z]Error;ERROR;Failed"
+  )
+
+``FAIL_REGULAR_EXPRESSION`` expects a list of regular expressions.

Help/prop_test/PASS_REGULAR_EXPRESSION.rst

@@ -5,4 +5,12 @@ The output must match this regular expression for the test to pass.
 
 If set, the test output will be checked against the specified regular
 expressions and at least one of the regular expressions has to match,
-otherwise the test will fail.
+otherwise the test will fail.  Example:
+
+.. code-block:: cmake
+
+  set_tests_properties(mytest PROPERTIES
+    PASS_REGULAR_EXPRESSION "TestPassed;All ok"
+  )
+
+``PASS_REGULAR_EXPRESSION`` expects a list of regular expressions.