From ab04d0e332174d1df80af0446c955dc1abb56c6c Mon Sep 17 00:00:00 2001
From: Pascal Sthamer <sthamer.pascal@gmail.com>
Date: Mon, 25 May 2020 19:22:46 +0200
Subject: Add test for window being undefined

---
 packages/browser/src/helpers/supportsWebauthn.test.ts | 15 ++++++++++++++-
 packages/browser/src/setupTests.ts                    |  4 ++++
 2 files changed, 18 insertions(+), 1 deletion(-)

(limited to 'packages/browser/src')

diff --git a/packages/browser/src/helpers/supportsWebauthn.test.ts b/packages/browser/src/helpers/supportsWebauthn.test.ts
index 078c27d..f6b8a8e 100644
--- a/packages/browser/src/helpers/supportsWebauthn.test.ts
+++ b/packages/browser/src/helpers/supportsWebauthn.test.ts
@@ -1,4 +1,4 @@
-import supportsWebauthn from './supportsWebauthn';
+import supportsWebauthn from './supportsWebauthn'
 
 beforeEach(() => {
   // @ts-ignore 2741
@@ -13,3 +13,16 @@ test('should return false when browser does not support WebAuthn', () => {
   delete window.PublicKeyCredential;
   expect(supportsWebauthn()).toBe(false);
 });
+
+test('should return false when window is undefined', () => {
+  // Make window undefined as it is in node environments.
+  // @ts-expect-error
+  const windowSpy = jest.spyOn(global, "window", "get");
+  windowSpy.mockImplementation(() => undefined);
+
+  expect(window).toBe(undefined)
+  expect(supportsWebauthn()).toBe(false);
+
+  // Restore original window value.
+  windowSpy.mockRestore()
+})
diff --git a/packages/browser/src/setupTests.ts b/packages/browser/src/setupTests.ts
index 019ba42..75833a8 100644
--- a/packages/browser/src/setupTests.ts
+++ b/packages/browser/src/setupTests.ts
@@ -3,6 +3,9 @@
 // jest.spyOn(console, 'debug').mockImplementation();
 // jest.spyOn(console, 'error').mockImplementation();
 
+// @ts-expect-error
+if (global.window) {
+
 /**
  * JSDom doesn't seem to support `credentials`, so let's define them here so we can mock their
  * implementations in specific tests.
@@ -14,3 +17,4 @@ window.navigator.credentials = {
   // assertion
   get: jest.fn(),
 };
+}
\ No newline at end of file
-- 
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