Piecewise building of CMakeLists

test/integration/tests/simple.rb

@@ -1,9 +1,8 @@
 add_test 'basic', ->(prj) {
-  prj.set_body <<~CMAKE
-    CPMAddPackage("gh:cpm-cmake/testpack-adder")
-    add_executable(using-adder using-adder.cpp)
-    target_link_libraries(using-adder PRIVATE adder)
-  CMAKE
-
+  prj.build_cmake_lists {
+    package 'gh:cpm-cmake/testpack-adder'
+    exe 'using-adder', ['using-adder.cpp']
+    link_libs 'using-adder', 'adder'
+  }
   prj.configure
 }