test: Use foreach iterators to simplify definitions

Create two arrays, to contain public and internal test targets, and use
the foreach iterators to automatically generate test output targets for
each entry in each array.

The public tests array is linked only against public libcamera headers,
while tests declared in the internal_tests will have access to
non-public API headers from within the libcamera sources.

Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

test/meson.build

@@ -12,10 +12,27 @@ test_includes_internal = [
     libcamera_internal_includes,
 ]
 
-list = executable('list', 'list.cpp',
-                  link_with : test_libraries,
-                  include_directories : test_includes_public)
-
 subdir('media_device')
 
-test('List Camera API tests', list)
+public_tests = [
+    ['list',            'list.cpp'],
+]
+
+internal_tests = [
+]
+
+foreach t : public_tests
+    exe = executable(t[0], t[1],
+                     link_with : test_libraries,
+                     include_directories : test_includes_public)
+
+    test(t[0], exe)
+endforeach
+
+foreach t : internal_tests
+    exe = executable(t[0], t[1],
+                     link_with : test_libraries,
+                     include_directories : test_includes_internal)
+
+    test(t[0], exe)
+endforeach