add hw2

node_modules/khroma/test/methods/is_valid.js

@@ -0,0 +1,28 @@
+
+/* IMPORT */
+
+import {describe} from 'fava';
+import {isValid} from '../../dist/index.js';
+
+/* MAIN */
+
+describe ( 'isValid', it => {
+
+  it ( 'checks if the provided color is a valid color', t => {
+
+    const tests = [
+      ['black', true],
+      ['rgb(10, 20, 30)', true],
+      ['#102030', true],
+      ['hsl(10, 20%, 30%)', true],
+      ['#ggg', false],
+      ['foo', false]
+    ];
+
+    tests.forEach ( ([ color, output ]) => {
+      t.is ( isValid ( color ), output );
+    });
+
+  });
+
+});