Add setupNconf function

test/api/v3/unit/libs/setupNconf.test.js

@@ -0,0 +1,41 @@
+import setupNconf from '../../../../../website/src/libs/api-v3/setupNconf';
+
+import nconf from 'nconf';
+
+describe('setupNconf', () => {
+  afterEach(() => {
+    sandbox.restore();
+  });
+
+  it('sets up nconf to load command line arguments', () => {
+    sandbox.spy(nconf, 'argv');
+
+    setupNconf();
+
+    expect(nconf.argv).to.be.calledOnce;
+  });
+
+  it('sets up nconf to load environmental variables', () => {
+    sandbox.spy(nconf, 'env');
+
+    setupNconf();
+
+    expect(nconf.env).to.be.calledOnce;
+  });
+
+  it('sets up nconf to load variables from config file', () => {
+    sandbox.spy(nconf, 'file');
+
+    setupNconf();
+
+    expect(nconf.file).to.be.calledOnce;
+  });
+
+  it('sets IS_PROD variable', () => {
+    expect(nconf.get('IS_PROD')).to.exist;
+  });
+
+  it('sets IS_DEV variable', () => {
+    expect(nconf.get('IS_DEV')).to.exist;
+  });
+});