Have travis build some tests with DLIB_ASSERT enabled to make sure they work.

.travis.yml

@@ -16,7 +16,7 @@ matrix:
       compiler: clang
       os: linux
       env:
-        - VARIANT=examples
+        - VARIANT=examples-debug
       script:
         - dlib/travis/build-and-test.sh
 
@@ -25,7 +25,7 @@ matrix:
       compiler: gcc
       os: linux
       env:
-        - VARIANT=test
+        - VARIANT=test-debug
       script:
         - dlib/travis/build-and-test.sh
 

dlib/travis/build-and-test.sh

@@ -16,6 +16,15 @@ if [ "$VARIANT" = "test" ]; then
   ./dtest --runall
 fi
 
+# build dlib and tests
+if [ "$VARIANT" = "test-debug" ]; then
+  mkdir build
+  cd build
+  cmake ../dlib/test --DDLIB_ENABLE_ASSERTS=1
+  cmake --build . --target dtest -- -j 2
+  ./dtest --runall
+fi
+
 if [ "$VARIANT" = "dlib_all_source_cpp" ]; then
   mkdir build
   cd build
@@ -62,6 +71,13 @@ if [ "$VARIANT" = "examples" ]; then
   cmake --build . -- -j 1
 fi
 
+if [ "$VARIANT" = "examples-debug" ]; then
+  mkdir build
+  cd build
+  cmake ../examples --DDLIB_ENABLE_ASSERTS=1
+  cmake --build . -- -j 1
+fi
+
 if [ "$VARIANT" = "python-api" ]; then
   python setup.py test --clean
   pip uninstall numpy -y