cover hash

.gitignore

@@ -20,3 +20,6 @@ node_modules
 lib
 example/*bundle*
 dist
+
+.idea
+coverage

test/__snapshots__/hash.test.js.snap

@@ -0,0 +1,17 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`hash 1 1`] = `"1yunt80"`;
+
+exports[`hash 2 1`] = `"9p294j"`;
+
+exports[`hash 3 1`] = `"527z82"`;
+
+exports[`hash 4 1`] = `"1bpnzwg"`;
+
+exports[`hash str length: >= 4 1`] = `"1bpnzwg"`;
+
+exports[`hash str length: 1 1`] = `"1yunt80"`;
+
+exports[`hash str length: 2 1`] = `"9p294j"`;
+
+exports[`hash str length: 3 1`] = `"527z82"`;

test/hash.test.js

@@ -0,0 +1,28 @@
+/* eslint-env jest */
+const hashArray = require('../src/hash').default
+
+describe('hash', () => {
+  test('str length: 1', () => {
+    const cls = '1'
+    const vars = ['a', 'b', 'c', 'd']
+    expect(hashArray([cls, ...vars])).toMatchSnapshot()
+  })
+
+  test('str length: 2', () => {
+    const cls = '12'
+    const vars = ['a', 'b', 'c', 'd']
+    expect(hashArray([cls, ...vars])).toMatchSnapshot()
+  })
+
+  test('str length: 3', () => {
+    const cls = '123'
+    const vars = ['a', 'b', 'c', 'd']
+    expect(hashArray([cls, ...vars])).toMatchSnapshot()
+  })
+
+  test('str length: >= 4', () => {
+    const cls = '1234'
+    const vars = ['a', 'b', 'c', 'd']
+    expect(hashArray([cls, ...vars])).toMatchSnapshot()
+  })
+})