From 837250344839a7df4ff6043629648ccbef8ec2b2 Mon Sep 17 00:00:00 2001
From: Patrick RoDee <prodee@google.com>
Date: Thu, 9 Jan 2020 17:03:38 -0800
Subject: [PATCH] WIP add tests

---
 packages/mdc-textfield/test/component.test.ts |  2 +-
 test/unit/mdc-dom/ponyfill.test.js            | 18 +++++++++++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/packages/mdc-textfield/test/component.test.ts b/packages/mdc-textfield/test/component.test.ts
index 1b4bb932efc..97ab4959362 100644
--- a/packages/mdc-textfield/test/component.test.ts
+++ b/packages/mdc-textfield/test/component.test.ts
@@ -284,7 +284,7 @@ describe('MDCTextField', () => {
     const component = new MDCTextField(root);
     const adapter = (component.getDefaultFoundation() as any).adapter_;
     expect(adapter.hasClass('foo')).toBe(false);
-    expect(adapter.getLabelWidth()).toEqual(0);
+    expect(adapter.getLabelWidth()).toBeGreaterThan(0);
     expect(() => adapter.floatLabel).not.toThrow();
   });
 
diff --git a/test/unit/mdc-dom/ponyfill.test.js b/test/unit/mdc-dom/ponyfill.test.js
index 69306fbd993..201ea462e7f 100644
--- a/test/unit/mdc-dom/ponyfill.test.js
+++ b/test/unit/mdc-dom/ponyfill.test.js
@@ -25,7 +25,7 @@ import {assert} from 'chai';
 import bel from 'bel';
 import td from 'testdouble';
 
-import {closest, matches} from '../../../packages/mdc-dom/ponyfill.ts';
+import {closest, matches, estimateScrollWidth} from '../../../packages/mdc-dom/ponyfill.ts';
 
 suite('MDCDom - ponyfill');
 
@@ -86,3 +86,19 @@ test('#matches supports vendor prefixes', () => {
   assert.isTrue(matches({webkitMatchesSelector: () => true}, ''));
   assert.isTrue(matches({msMatchesSelector: () => true}, ''));
 });
+
+test('#estimateScrollWidth returns the default width when the element is not hidden', () => {
+  const root = bel`<span>
+    <span id="i0" style="width:10px;"></span>
+  </span>`;
+  const el = root.querySelector('#i0');
+  assert.strictEqual(estimateScrollWidth(el), 10);
+});
+
+test('#estimateScrollWidth returns the estimated width when the element is hidden', () => {
+  const root = bel`<span style="display:none;">
+    <span id="i0" style="width:10px;"></span>
+  </span>`;
+  const el = root.querySelector('#i0');
+  assert.strictEqual(estimateScrollWidth(el), 10);
+});