Add helper function to preconfigure project for web-sys (#455)

Author: brisad

crates/web-sys/tests/all/event.rs

@@ -1,10 +1,8 @@
-use super::project;
+use super::websys_project;
 
 #[test]
 fn event() {
-    project()
-        .add_local_dependency("web-sys", env!("CARGO_MANIFEST_DIR"))
-        .headless(true)
+    websys_project()
         .file(
             "src/lib.rs",
             r#"

crates/web-sys/tests/all/main.rs

@@ -1,5 +1,12 @@
 extern crate wasm_bindgen_test_project_builder as project_builder;
-use project_builder::project;
+use project_builder::{project, Project};
 
 mod event;
 mod response;
+
+fn websys_project() -> Project {
+    project()
+        .add_local_dependency("web-sys", env!("CARGO_MANIFEST_DIR"))
+        .headless(true)
+        .clone()
+}

crates/web-sys/tests/all/response.rs

@@ -1,10 +1,8 @@
-use super::project;
+use super::websys_project;
 
 #[test]
 fn response() {
-    project()
-        .add_local_dependency("web-sys", env!("CARGO_MANIFEST_DIR"))
-        .headless(true)
+    websys_project()
         .file(
             "src/lib.rs",
             r#"