perf: faster bem

2020-03-23 10:29:18 +08:00
parent 13ef031a21
commit fd9993cfa3
2 changed files with 52 additions and 19 deletions
@@ -0,0 +1,39 @@
+import { createBEM } from '../create/bem';
+
+test('bem', () => {
+  const bem = createBEM('button');
+
+  expect(bem()).toEqual('button');
+
+  expect(bem('text')).toEqual('button__text');
+
+  expect(bem({ disabled: false })).toEqual('button');
+
+  expect(bem({ disabled: true })).toEqual('button button--disabled');
+
+  expect(bem('text', { disabled: true })).toEqual(
+    'button__text button__text--disabled'
+  );
+
+  expect(bem(['disabled', 'primary'])).toEqual(
+    'button button--disabled button--primary'
+  );
+
+  expect(bem([])).toEqual('button');
+
+  expect(bem(null)).toEqual('button');
+
+  expect(bem([null])).toEqual('button');
+
+  expect(bem(['disabled', ''])).toEqual('button button--disabled');
+
+  expect(bem(['disabled', undefined])).toEqual('button button--disabled');
+
+  expect(bem('text', ['disabled', 'primary'])).toEqual(
+    'button__text button__text--disabled button__text--primary'
+  );
+
+  expect(bem('text', [{ disabled: true }, 'primary'])).toEqual(
+    'button__text button__text--disabled button__text--primary'
+  );
+});