Rename immutable slices test

crates/web-sys/tests/wasm/whitelisted_immutable_slices.rs

@@ -0,0 +1,26 @@
+//! When generating our web_sys APIs we default to setting slice references that
+//! get passed to JS as mutable in case they get mutated in JS.
+//!
+//! In certain cases we know for sure that the slice will not get mutated - for
+//! example when working with the WebGlRenderingContext APIs.
+//!
+//! These tests ensure that whitelisted methods do indeed accept mutable slices.
+//!
+//! @see https://github.com/rustwasm/wasm-bindgen/issues/1005
+
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_test::*;
+use web_sys::WebGlRenderingContext;
+
+#[wasm_bindgen(module = "./tests/wasm/element.js")]
+extern "C" {
+    fn new_webgl_rendering_context() -> WebGlRenderingContext;
+}
+
+// Ensure that our whitelisted WebGlRenderingContext methods work
+#[wasm_bindgen_test]
+fn test_webgl_rendering_context_immutable_slices() {
+    let gl = new_webgl_rendering_context();
+
+    gl.vertex_attrib1fv_with_f32_array(0, &[5000.]);
+}