Adds a unit test.

Author: michaelkrog

test/http/client/rest-template.test.ts

@@ -0,0 +1,44 @@
+
+import fetchMock from "jest-fetch-mock";
+import {RestTemplate} from '../../../src/http/client';
+
+describe("passport control", () => {
+
+    let template: RestTemplate;
+
+    beforeAll(() => {
+        fetchMock.enableMocks();
+
+        template = new RestTemplate();
+    });
+
+    it("should handle error correctly", async () => {
+        // Arrange
+        template.errorHandler = {
+            hasError: () => true,
+            handleError: () => {throw Error('')}
+        }
+        fetchMock.mockIf('https://localhost', req => {
+            return Promise.resolve({
+                status: 500,
+                body: JSON.stringify({message: 'Error'}),
+                headers: {
+                    'content-type': 'application/json'
+                }
+            });
+        });
+
+        // Act
+        let result: any = undefined;
+        
+        try {
+            await template.exchange('https://localhost', 'GET');
+        } catch(error) {
+            result = 'error'
+        }
+
+        // Assert
+        expect(result).toEqual('error');
+    });
+
+});