move run-fonts to docx/run and add a test

ts/tests/docx/run/fontTests.ts

@@ -0,0 +1,22 @@
+import { expect } from "chai";
+import { RunFonts } from "../../../docx/run/run-fonts";
+import { Formatter } from "../../../export/formatter";
+
+describe("RunFonts", () => {
+
+    describe("#constructor()", () => {
+        it("uses the font name for both ascii and hAnsi", () => {
+            const tree = new Formatter().format(new RunFonts("Times"));
+            expect(tree).to.deep.equal({
+                "w:rFonts": [{_attr: {"w:ascii": "Times", "w:hAnsi": "Times"}}],
+            });
+        });
+
+        it("uses hint if given", () => {
+            const tree = new Formatter().format(new RunFonts("Times", "default"));
+            expect(tree).to.deep.equal({
+                "w:rFonts": [{_attr: {"w:ascii": "Times", "w:hAnsi": "Times", "w:hint": "default"}}],
+            });
+        });
+    });
+});