ctest: add page (#2590)

pages/common/ctest.md

@@ -0,0 +1,15 @@
+# ctest
+
+> CMake test driver program.
+
+- Run all tests defined in the CMake project, executing 4 jobs at a time in parallel:
+
+`ctest -j{{4}} --output-on-failure`
+
+- Show a list of available tests:
+
+`ctest -N`
+
+- Run a single test based on its name, or filter on a regular expression:
+
+`ctest --output-on-failure -R '^{{test_name}}$'`