diff --git a/__tests__/context.test.ts b/__tests__/context.test.ts
index a77f44b..886619b 100644
--- a/__tests__/context.test.ts
+++ b/__tests__/context.test.ts
@@ -2,13 +2,21 @@ import osm = require('os');
 
 import {getInputs} from '../src/context';
 
+test('without username getInputs throws errors', async () => {
+  expect(() => {
+    getInputs();
+  }).toThrowError('Input required and not supplied: username');
+});
+
 test('without password getInputs throws errors', async () => {
+  process.env['INPUT_USERNAME'] = 'dbowie';
   expect(() => {
     getInputs();
   }).toThrowError('Input required and not supplied: password');
 });
 
-test('with password getInputs does not error', async () => {
+test('with password and username getInputs does not error', async () => {
+  process.env['INPUT_USERNAME'] = 'dbowie';
   process.env['INPUT_PASSWORD'] = 'groundcontrol';
   expect(() => {
     getInputs();
diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
index 0b207f0..062c7c2 100644
--- a/__tests__/main.test.ts
+++ b/__tests__/main.test.ts
@@ -17,7 +17,7 @@ test('errors when not run on linux platform', async () => {
   expect(coreSpy).toHaveBeenCalledWith('Only supported on linux platform');
 });
 
-test('errors without password', async () => {
+test('errors without username', async () => {
   const platSpy = jest.spyOn(osm, 'platform');
   platSpy.mockImplementation(() => 'linux');
 
@@ -25,10 +25,24 @@ test('errors without password', async () => {
 
   await run();
 
+  expect(coreSpy).toHaveBeenCalledWith('Input required and not supplied: username');
+});
+
+test('errors without password', async () => {
+  const platSpy = jest.spyOn(osm, 'platform');
+  platSpy.mockImplementation(() => 'linux');
+
+  const coreSpy: jest.SpyInstance = jest.spyOn(core, 'setFailed');
+
+  const username: string = 'dbowie';
+  process.env[`INPUT_USERNAME`] = username;
+
+  await run();
+
   expect(coreSpy).toHaveBeenCalledWith('Input required and not supplied: password');
 });
 
-test('successful with only password', async () => {
+test('successful with username and password', async () => {
   const platSpy = jest.spyOn(osm, 'platform');
   platSpy.mockImplementation(() => 'linux');
 
@@ -37,6 +51,9 @@ test('successful with only password', async () => {
   const dockerSpy: jest.SpyInstance = jest.spyOn(docker, 'login');
   dockerSpy.mockImplementation(() => {});
 
+  const username: string = 'dbowie';
+  process.env[`INPUT_USERNAME`] = username;
+
   const password: string = 'groundcontrol';
   process.env[`INPUT_PASSWORD`] = password;
 
@@ -44,7 +61,7 @@ test('successful with only password', async () => {
 
   expect(setRegistrySpy).toHaveBeenCalledWith('');
   expect(setLogoutSpy).toHaveBeenCalledWith('');
-  expect(dockerSpy).toHaveBeenCalledWith('', '', password);
+  expect(dockerSpy).toHaveBeenCalledWith('', username, password);
 });
 
 test('calls docker login', async () => {