Move comments test to wasm

tests/all/comments.rs

@@ -1,62 +0,0 @@
-use super::project;
-
-#[test]
-fn works() {
-    let mut p = project();
-    p.file(
-        "src/lib.rs",
-        r#"
-            #![feature(use_extern_macros)]
-
-            extern crate wasm_bindgen;
-
-            use wasm_bindgen::prelude::*;
-
-            #[wasm_bindgen]
-            /// This comment should exist
-            pub fn annotated() -> String {
-                String::new()
-            }
-
-            #[wasm_bindgen]
-            /// This comment should exist
-            pub struct Annotated {
-                /// This comment should not exist
-                a: String,
-                /// This comment should exist
-                pub b: u32
-            }
-
-            #[wasm_bindgen]
-            impl Annotated {
-                #[wasm_bindgen(method)]
-                /// This comment should exist
-                pub fn get_a(&self) -> String {
-                    self.a.clone()
-                }
-            }
-        "#,
-    );
-
-    p.gen_bindings();
-    let js = p.read_js();
-    let comments = extract_doc_comments(&js);
-    assert!(comments.iter().all(|c| c == "This comment should exist" ||
-                                    c.starts_with("@")));
-}
-
-/// Pull out all lines in a js string that start with
-/// '* ', all other lines will either be comment start, comment
-/// end or actual js lines.
-fn extract_doc_comments(js: &str) -> Vec<String> {
-    js.lines()
-        .filter_map(|l| {
-            let trimmed = l.trim();
-            if trimmed.starts_with("* ") {
-                Some(trimmed[2..].to_owned())
-            } else {
-                None
-            }
-        })
-        .collect()
-}

tests/all/main.rs

@@ -3,5 +3,3 @@
 extern crate wasm_bindgen_test_project_builder as project_builder;
 
 use project_builder::project;
-
-mod comments;

tests/wasm/comments.js

@@ -0,0 +1,11 @@
+const fs = require('fs');
+const assert = require('assert');
+
+exports.assert_comments_exist = function() {
+  const bindings_file = require.resolve('wasm-bindgen-test');
+  const contents = fs.readFileSync(bindings_file);
+  assert.ok(contents.includes("* annotated function"));
+  assert.ok(contents.includes("* annotated struct type"));
+  assert.ok(contents.includes("* annotated struct field"));
+  assert.ok(contents.includes("* annotated struct method"));
+};

tests/wasm/comments.rs

@@ -0,0 +1,34 @@
+use wasm_bindgen_test::*;
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen(module = "tests/wasm/comments.js")]
+extern {
+    fn assert_comments_exist();
+}
+
+#[wasm_bindgen]
+/// annotated function
+pub fn annotated() -> String {
+    String::new()
+}
+
+#[wasm_bindgen]
+/// annotated struct type
+pub struct Annotated {
+    a: String,
+    /// annotated struct field
+    pub b: u32
+}
+
+#[wasm_bindgen]
+impl Annotated {
+    /// annotated struct method
+    pub fn get_a(&self) -> String {
+        self.a.clone()
+    }
+}
+
+#[wasm_bindgen_test]
+fn works() {
+    assert_comments_exist();
+}

tests/wasm/main.rs

@@ -14,6 +14,7 @@ pub mod api;
 pub mod char;
 pub mod classes;
 pub mod closures;
+pub mod comments;
 pub mod duplicate_deps;
 pub mod duplicates;
 pub mod enums;