Add tests for catching errors for exporter packer.pack

src/export/packer/local.spec.ts

@@ -1,5 +1,7 @@
 /* tslint:disable:typedef space-before-function-paren */
+import { assert } from "chai";
 import * as fs from "fs";
+import { stub } from "sinon";
 
 import { LocalPacker } from "../../export/packer/local";
 import { File, Paragraph } from "../../file";
@@ -29,14 +31,36 @@ describe("LocalPacker", () => {
             await packer.pack("build/tests/test");
             fs.statSync("build/tests/test.docx");
         });
+
+        it("should handle exception if it throws any", () => {
+            // tslint:disable-next-line:no-any
+            const compiler = stub((packer as any).packer, "compile");
+            compiler.throwsException();
+            return packer.pack("build/tests/test").catch((error) => {
+                assert.isDefined(error);
+            });
+        });
     });
 
     describe("#packPdf", () => {
         it("should create a standard PDF file", async function() {
             this.timeout(99999999);
 
+            // tslint:disable-next-line:no-any
+            const pdfConverterConvert = stub((packer as any).pdfConverter, "convert");
+            pdfConverterConvert.returns("Test PDF Contents");
+
             await packer.packPdf("build/tests/pdf-test");
             fs.statSync("build/tests/pdf-test.pdf");
         });
+
+        it("should handle exception if it throws any", () => {
+            // tslint:disable-next-line:no-any
+            const compiler = stub((packer as any).packer, "compile");
+            compiler.throwsException();
+            return packer.packPdf("build/tests/pdf-test").catch((error) => {
+                assert.isDefined(error);
+            });
+        });
     });
 });