1 files changed, 124 insertions, 0 deletions
diff --git a/tests/integration/lsp_tests.rs b/tests/integration/lsp_tests.rs
index dcef69608..a5b0ee247 100644
--- a/tests/integration/lsp_tests.rs
+++ b/tests/integration/lsp_tests.rs
@@ -8271,6 +8271,130 @@ fn lsp_npm_auto_import_and_quick_fix_byonm() {
 }
 
 #[test]
+fn lsp_npm_auto_import_with_deno_types() {
+  let context = TestContextBuilder::new()
+    .use_http_server()
+    .use_temp_cwd()
+    .add_npm_env_vars()
+    .build();
+  let temp_dir = context.temp_dir();
+  temp_dir.write(
+    "deno.json",
+    json!({
+      "compilerOptions": {
+        "jsx": "react-jsx",
+        "jsxImportSource": "react",
+        "jsxImportSourceTypes": "@types/react",
+      },
+    })
+    .to_string(),
+  );
+  temp_dir.write(
+    "package.json",
+    json!({
+      "dependencies": {
+        "react": "*",
+        "@types/react": "*",
+        "lz-string": "1.3",
+        "@types/lz-string": "1.3",
+      },
+    })
+    .to_string(),
+  );
+  context.run_npm("install");
+  temp_dir.write(
+    "other.ts",
+    r#"
+      // @deno-types="@types/lz-string"
+      import "lz-string";
+    "#,
+  );
+  let mut client = context.new_lsp_command().build();
+  client.initialize_default();
+  client.did_open(json!({
+    "textDocument": {
+      "uri": temp_dir.url().join("file.ts").unwrap(),
+      "languageId": "typescript",
+      "version": 1,
+      "text": r#"
+        compressToBase64();
+        createRef();
+      "#,
+    },
+  }));
+  let list = client.get_completion_list(
+    temp_dir.url().join("file.ts").unwrap(),
+    (1, 24),
+    json!({ "triggerKind": 1 }),
+  );
+  let item = list
+    .items
+    .iter()
+    .find(|item| item.label == "compressToBase64")
+    .unwrap();
+  let res = client.write_request("completionItem/resolve", item);
+  assert_eq!(
+    res,
+    json!({
+      "label": "compressToBase64",
+      "labelDetails": {
+        "description": "lz-string",
+      },
+      "kind": 2,
+      "detail": "(method) LZString.LZStringStatic.compressToBase64(uncompressed: string): string",
+      "documentation": {
+        "kind": "markdown",
+        "value": "Compresses input string producing an instance of a ASCII UTF-16 string,\nwhich represents the original string encoded in Base64.\nThe result can be safely transported outside the browser with a\nguarantee that none of the characters produced need to be URL-encoded.\n\n*@param* - uncompressed A string which should be compressed.",
+      },
+      "sortText": "16_0",
+      "additionalTextEdits": [
+        {
+          "range": {
+            "start": { "line": 0, "character": 0 },
+            "end": { "line": 0, "character": 0 },
+          },
+          "newText": "// @deno-types=\"@types/lz-string\"\nimport { compressToBase64 } from \"lz-string\";\n",
+        },
+      ],
+    }),
+  );
+  let list = client.get_completion_list(
+    temp_dir.url().join("file.ts").unwrap(),
+    (2, 17),
+    json!({ "triggerKind": 1 }),
+  );
+  let item = list
+    .items
+    .iter()
+    .find(|item| item.label == "createRef")
+    .unwrap();
+  let res = client.write_request("completionItem/resolve", item);
+  assert_eq!(
+    res,
+    json!({
+      "label": "createRef",
+      "labelDetails": {
+        "description": "react",
+      },
+      "kind": 3,
+      "detail": "function React.createRef<T>(): React.RefObject<T>",
+      "documentation": { "kind": "markdown", "value": "" },
+      "sortText": "16_0",
+      "additionalTextEdits": [
+        {
+          "range": {
+            "start": { "line": 0, "character": 0 },
+            "end": { "line": 0, "character": 0 },
+          },
+          "newText": "// @deno-types=\"@types/react\"\nimport { createRef } from \"react\";\n",
+        },
+      ],
+    }),
+  );
+  client.shutdown();
+}
+
+#[test]
 fn lsp_completions_node_specifier() {
   let context = TestContextBuilder::new().use_temp_cwd().build();
   let temp_dir = context.temp_dir();