Switch to binary prefixes

app/helpers/pretty-bytes.js

@@ -2,4 +2,17 @@ import { helper } from '@ember/component/helper';
 
 import prettyBytes from 'pretty-bytes';
 
-export default helper(([bytes], options) => prettyBytes(bytes, options));
+/**
+ * See https://github.com/rust-lang/crates.io/discussions/7177
+ *
+ * Here we set fraction digits to 1 because `cargo publish`
+ * uses this format (see https://github.com/rust-lang/cargo/blob/master/src/cargo/ops/cargo_package.rs#L168-L171)
+ */
+export default helper(([bytes], options) =>
+ prettyBytes(bytes, {
+ ...options,
+ binary: true,
+ minimumFractionDigits: 1,
+ maximumFractionDigits: 1,
+ }),
+);

tests/unit/helpers/pretty-bytes-test.js

@@ -0,0 +1,26 @@
+import { render } from '@ember/test-helpers';
+import { module, test } from 'qunit';
+
+import { hbs } from 'ember-cli-htmlbars';
+
+import { setupRenderingTest } from 'cargo/tests/helpers';
+
+module('Unit | Helper | pretty-bytes', function (hooks) {
+ setupRenderingTest(hooks);
+
+ test('it displays as expected', async function (assert) {
+ this.owner.lookup('service:intl').locale = 'en';
+
+ await render(hbs`{{pretty-bytes 42}}`);
+ assert.dom().hasText('42.0 B');
+
+ await render(hbs`{{pretty-bytes 42000}}`);
+ assert.dom().hasText('41.0 KiB');
+
+ await render(hbs`{{pretty-bytes 42420}}`);
+ assert.dom().hasText('41.4 KiB');
+
+ await render(hbs`{{pretty-bytes 42424242}}`);
+ assert.dom().hasText('40.5 MiB');
+ });
+});