Create tests for validateOptions

Author: erictuvesson

src/options/options.test.ts

@@ -1,4 +1,4 @@
-import { makeOptions } from "./options";
+import { makeOptions, validateOptions } from "./options";
 import * as Mustache from "mustache";
 import { Swagger } from "../swagger/Swagger";
 
@@ -37,3 +37,51 @@ describe("makeOptions", () => {
     expect(options.className).toBe("GeneratedDataLayer");
   });
 });
+
+describe("validateOptions", () => {
+  it("with valid options", () => {
+    const partialOptions = {
+      swagger: {} as Swagger,
+      template: {
+        class: "class-template",
+        method: "method-template"
+      }
+    };
+
+    const options = makeOptions(partialOptions);
+
+    expect(() => validateOptions(options));
+  });
+
+  it("throws when class template is not provided", () => {
+    const partialOptions = {
+      swagger: {} as Swagger,
+      template: {
+        class: "class-template",
+        method: undefined
+      }
+    };
+
+    const options = makeOptions(partialOptions);
+
+    expect(() => validateOptions(options)).toThrow(
+      'Unprovided custom template. Please use the following template: template: { class: "...", method: "...", request: "..." }'
+    );
+  });
+
+  it("throws when method template is not provided", () => {
+    const partialOptions = {
+      swagger: {} as Swagger,
+      template: {
+        class: undefined,
+        method: "method-template"
+      }
+    };
+
+    const options = makeOptions(partialOptions);
+
+    expect(() => validateOptions(options)).toThrow(
+      'Unprovided custom template. Please use the following template: template: { class: "...", method: "...", request: "..." }'
+    );
+  });
+});