Set up CLI snapshot testing (#343)

* Set up CLI snapshot testing

* Update Candid tests

* Revert changes to 'cli/bin/mops.js'

* Update snapshots

* Increase test timeout

* Update tests

* Remove commented code

Author: rvanasa

.github/workflows/ci.yml

@@ -77,3 +77,6 @@ jobs:
 
       - name: Build CLI releases
         run: npm run build-cli-releases
+
+      - name: Run CLI tests
+        run: cd cli && npm test

cli/bin/mops.js

@@ -1,3 +1,3 @@
 #!/usr/bin/env node
 
-import "../cli.js";
+import "../cli.js";

cli/commands/build.ts

@@ -59,7 +59,16 @@ export async function build(
   if (!(await exists(outputDir))) {
     await mkdir(outputDir, { recursive: true });
   }
-  for (let [canisterName, canister] of Object.entries(canisters)) {
+
+  const filteredCanisters = canisterNames
+    ? Object.fromEntries(
+        Object.entries(canisters).filter(([name]) =>
+          canisterNames.includes(name),
+        ),
+      )
+    : canisters;
+
+  for (let [canisterName, canister] of Object.entries(filteredCanisters)) {
     options.verbose && console.time(`build canister ${canisterName}`);
     console.log(chalk.blue("build canister"), chalk.bold(canisterName));
     let motokoPath = canister.main;
@@ -161,6 +170,8 @@ export async function build(
   }
 
   console.log(
-    chalk.green(`\n✓ Built ${Object.keys(canisters).length} canisters`),
+    chalk.green(
+      `\n✓ Built ${Object.keys(filteredCanisters).length} canister${Object.keys(filteredCanisters).length == 1 ? "" : "s"} successfully`,
+    ),
   );
 }

cli/jest.config.js

@@ -0,0 +1,14 @@
+/** @type {import("jest").Config} **/
+export default {
+  preset: "ts-jest/presets/default-esm",
+  testPathIgnorePatterns: [
+    "<rootDir>/node_modules/",
+    "<rootDir>/dist/",
+    "<rootDir>/bundle/",
+    "<rootDir>/commands/"
+  ],
+  transform: {
+    "^.+\\.tsx?$": ["ts-jest", { useESM: true }],
+  },
+  testTimeout: 60000,
+};