split dev files and amalgamate into a single header

test/CMakeLists.txt

@@ -21,6 +21,13 @@ add_executable(inja_test
   src/unit.cpp
 )
 
+add_executable(inja_single_test
+  src/unit-files.cpp
+  src/unit-renderer.cpp
+  src/unit-string-helper.cpp
+  src/unit.cpp
+)
+
 add_executable(inja_benchmark
   src/benchmark.cpp
 )
@@ -51,6 +58,7 @@ else() # Manage dependencies manually
 
   # Add dependencies to targets
   target_link_libraries(inja_test Catch inja)
+  target_link_libraries(inja_single_test Catch inja_single)
   target_link_libraries(inja_benchmark hayai inja)
 endif()
 
@@ -73,3 +81,8 @@ add_test(NAME inja_test
   COMMAND inja_test
   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 )
+
+add_test(NAME inja_single_test
+  COMMAND inja_single_test
+  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+)

test/meson.build

@@ -7,6 +7,15 @@ unit_test = executable(
   dependencies: inja_dep
 )
 
+unit_single_test = executable(
+  'inja-single-test',
+  'src/unit.cpp',
+  'src/unit-files.cpp',
+  'src/unit-renderer.cpp',
+  'src/unit-string-helper.cpp',
+  dependencies: inja_single_dep
+)
+
 inja_benchmark = executable(
   'inja_benchmark',
   'src/benchmark.cpp',
@@ -14,3 +23,4 @@ inja_benchmark = executable(
 )
 
 test('Inja unit test', unit_test)
+test('Inja single unit test', unit_single_test)