Add require-await lint rule (#4401)

1 files changed, 7 insertions, 7 deletions

diff --git a/std/io/iotest.ts b/std/io/iotest.ts
index 1e922e33f..e2cf315aa 100644
--- a/std/io/iotest.ts
+++ b/std/io/iotest.ts
@@ -10,14 +10,14 @@ type Reader = Deno.Reader;
 export class OneByteReader implements Reader {
   constructor(readonly r: Reader) {}
 
-  async read(p: Uint8Array): Promise<number | Deno.EOF> {
+  read(p: Uint8Array): Promise<number | Deno.EOF> {
     if (p.byteLength === 0) {
-      return 0;
+      return Promise.resolve(0);
     }
     if (!(p instanceof Uint8Array)) {
       throw Error("expected Uint8Array");
     }
-    return this.r.read(p.subarray(0, 1));
+    return Promise.resolve(this.r.read(p.subarray(0, 1)));
   }
 }
 
@@ -27,12 +27,12 @@ export class OneByteReader implements Reader {
 export class HalfReader implements Reader {
   constructor(readonly r: Reader) {}
 
-  async read(p: Uint8Array): Promise<number | Deno.EOF> {
+  read(p: Uint8Array): Promise<number | Deno.EOF> {
     if (!(p instanceof Uint8Array)) {
       throw Error("expected Uint8Array");
     }
     const half = Math.floor((p.byteLength + 1) / 2);
-    return this.r.read(p.subarray(0, half));
+    return Promise.resolve(this.r.read(p.subarray(0, half)));
   }
 }
 
@@ -43,11 +43,11 @@ export class TimeoutReader implements Reader {
   count = 0;
   constructor(readonly r: Reader) {}
 
-  async read(p: Uint8Array): Promise<number | Deno.EOF> {
+  read(p: Uint8Array): Promise<number | Deno.EOF> {
     this.count++;
     if (this.count === 2) {
       throw new Deno.errors.TimedOut();
     }
-    return this.r.read(p);
+    return Promise.resolve(this.r.read(p));
   }
 }