Change docx folder to more appropriate "file" folder

src/file/table/properties.spec.ts

@@ -0,0 +1,38 @@
+import { expect } from "chai";
+
+import { Formatter } from "../../export/formatter";
+import { TableProperties } from "./properties";
+
+describe("TableProperties", () => {
+    describe("#constructor", () => {
+        it("creates an initially empty property object", () => {
+            const tp = new TableProperties();
+            const tree = new Formatter().format(tp);
+            expect(tree).to.deep.equal({"w:tblPr": []});
+        });
+    });
+
+    describe("#setWidth", () => {
+        it("adds a table width property", () => {
+            const tp = new TableProperties().setWidth("dxa", 1234);
+            const tree = new Formatter().format(tp);
+            expect(tree).to.deep.equal({
+                "w:tblPr": [
+                    {"w:tblW": [{_attr: {"w:type": "dxa", "w:w": 1234}}]},
+                ],
+            });
+        });
+    });
+
+    describe("#fixedWidthLayout", () => {
+        it("sets the table to fixed width layout", () => {
+            const tp = new TableProperties().fixedWidthLayout();
+            const tree = new Formatter().format(tp);
+            expect(tree).to.deep.equal({
+                "w:tblPr": [
+                    {"w:tblLayout": [{_attr: {"w:type": "fixed"}}]},
+                ],
+            });
+        });
+    });
+});