[skip changelog] Enhance test

Author: silvanocerza

legacy/builder/resolve_library.go

@@ -51,7 +51,7 @@ func ResolveLibrary(ctx *types.Context, header string) *libraries.Library {
 		// Certain libraries might have the same name but be different.
 		// This usually happens when the user includes two or more custom libraries that have
 		// different header name but are stored in a parent folder with identical name, like
-		// ./Lib1/src/lib1.h and ./Lib2/src/lib2.h
+		// ./libraries1/Lib/lib1.h and ./libraries2/Lib/lib2.h
 		// Without this check the library resolution would be stuck in a loop.
 		// This behaviour has been reported in this issue:
 		// https://github.com/arduino/arduino-cli/issues/973

test/test_compile.py

@@ -554,8 +554,8 @@ def test_compile_with_custom_libraries(run_command, copy_sketch):
     sketch_path = copy_sketch("sketch_with_multiple_custom_libraries")
     fqbn = "esp8266:esp8266:nodemcu:xtal=80,vt=heap,eesz=4M1M,wipe=none,baud=115200"
 
-    first_lib = Path(sketch_path, "libraries", "Lib1")
-    second_lib = Path(sketch_path, "libraries", "Lib2")
+    first_lib = Path(sketch_path, "libraries1")
+    second_lib = Path(sketch_path, "libraries2")
     # This compile command has been taken from this issue:
     # https://github.com/arduino/arduino-cli/issues/973
     assert run_command(f"compile --libraries {first_lib},{second_lib} -b {fqbn} {sketch_path}")