Simplify a bit the test dependencies

So compiling the tests can be a bit faster

docs/testing.md

@@ -89,7 +89,7 @@ Some macro like `assert_eq` are defined to look similar o the rust equivalent.
 To run the test, you must make sure to first build the slint-cpp shared library:
 
 ```
-cargo build --lib -p slint-cpp --features testing && cargo test -p  test-driver-cpp --
+cargo build --lib -p slint-cpp --features testing --no-default-features && cargo test -p  test-driver-cpp --
 ```
 
 You can omit the first part that compiles slint-cpp if you only want to test the compiler and

tests/driver/cpp/Cargo.toml

@@ -14,7 +14,7 @@ path = "main.rs"
 name = "test-driver-cpp"
 
 [dependencies]
-slint-cpp = { path = "../../../api/cpp", features = ["testing"] }
+slint-cpp = { path = "../../../api/cpp", default-features = false, features = ["testing"] }
 
 [dev-dependencies]
 i-slint-compiler = { path = "../../../internal/compiler", features = ["cpp", "display-diagnostics"] }

tests/driver/nodejs/Cargo.toml

@@ -15,7 +15,8 @@ name = "test-driver-nodejs"
 
 [dev-dependencies]
 test_driver_lib = { path = "../driverlib" }
-slint-node = { path = "../../../api/node/native" }
+# Require `artifact`  dependencies tracked by rust RFC 3028
+#slint-node = { path = "../../../api/node/native", artifact = ["cdylib"] }
 lazy_static = "1.4.0"
 which = "4.0.2"
 tempfile = "3.2"

tests/driver/rust/Cargo.toml

@@ -17,7 +17,7 @@ name = "test-driver-rust"
 build-time = ["i-slint-compiler", "spin_on"]
 
 [dependencies]
-slint = { path = "../../../api/rs/slint" }
+slint = { path = "../../../api/rs/slint", default-features = false, features = ["std", "compat-0-2-0"] }
 i-slint-backend-testing = { path = "../../../internal/backends/testing" }
 
 [build-dependencies]