add an ability to specify charSpace and type for DocumentGrid

src/file/document/body/section-properties/properties/doc-grid.spec.ts

@@ -0,0 +1,30 @@
+import { expect } from "chai";
+
+import { Formatter } from "export/formatter";
+
+import { DocumentGrid, DocumentGridType } from ".";
+
+describe("DocumentGrid", () => {
+    describe("#constructor()", () => {
+        it("should create documentGrid with specified linePitch", () => {
+            const docGrid = new DocumentGrid(360);
+            const tree = new Formatter().format(docGrid);
+
+            expect(tree["w:docGrid"]).to.deep.equal({ _attr: { "w:linePitch": 360 } });
+        });
+
+        it("should create documentGrid with specified linePitch and type", () => {
+            const docGrid = new DocumentGrid(360, undefined, DocumentGridType.LINES);
+            const tree = new Formatter().format(docGrid);
+
+            expect(tree["w:docGrid"]).to.deep.equal({ _attr: { "w:linePitch": 360, "w:type": "lines" } });
+        });
+
+        it("should create documentGrid with specified linePitch,charSpace and type", () => {
+            const docGrid = new DocumentGrid(346, -1541, DocumentGridType.LINES_AND_CHARS);
+            const tree = new Formatter().format(docGrid);
+
+            expect(tree["w:docGrid"]).to.deep.equal({ _attr: { "w:linePitch": 346, "w:charSpace": -1541, "w:type": "linesAndChars" } });
+        });
+    });
+});