feat: Implement a SimpleCache Class (#548)

Co-authored-by: Trevor Elliott <telliott@fastly.com>

.github/workflows/main.yml

@@ -10,7 +10,7 @@ defaults:
   run:
     shell: bash
 env:
-  viceroy_version: 0.4.4
+  viceroy_version: 0.5.1
   wasm-tools_version: 1.0.28
 
 jobs:
@@ -128,7 +128,7 @@ jobs:
       matrix:
         include:
           - crate: viceroy
-            version: 0.4.4 # Note: workflow-level env vars can't be used in matrix definitions
+            version: 0.5.1 # Note: workflow-level env vars can't be used in matrix definitions
             options: ""
           - crate: wasm-tools
             version: 1.0.28 # Note: workflow-level env vars can't be used in matrix definitions
@@ -383,6 +383,7 @@ jobs:
           - 'byob'
           - 'byte-repeater'
           - 'cache-override'
+          - 'cache-simple'
           - 'crypto'
           - 'edge-dictionary'
           - 'error'

integration-tests/js-compute/assertions.js

@@ -1,5 +1,33 @@
+/* global ReadableStream */
+
 // Testing/Assertion functions //
 
+// TODO: Implement ReadableStream getIterator() and [@@asyncIterator]() methods
+export async function streamToString(stream) {
+    const decoder = new TextDecoder();
+    let string = '';
+    let reader = stream.getReader()
+    // eslint-disable-next-line no-constant-condition
+    while (true) {
+        const { done, value } = await reader.read();
+        if (done) {
+            return string;
+        }
+        string += decoder.decode(value)
+    }
+}
+
+export function iteratableToStream(iterable) {
+    return new ReadableStream({
+        async pull(controller) {
+            for await (const value of iterable) {
+                controller.enqueue(value);
+            }
+            controller.close();
+        }
+    });
+}
+
 export function pass(message = '') {
     return new Response(message)
 }