Add API for specifying columns with different widths

src/file/document/body/section-properties/properties/columns.spec.ts

@@ -0,0 +1,37 @@
+import { expect } from "chai";
+import { Columns } from ".";
+import { Formatter } from "export/formatter";
+import { Column } from "./column";
+
+describe("Columns", () => {
+    describe("#constructor()", () => {
+        it("should create columns of equal width if equalWidth is true", () => {
+            const columns = new Columns({ count: 3, space: 720 });
+            const tree = new Formatter().format(columns);
+
+            expect(tree["w:cols"]).to.deep.equal({ _attr: { "w:num": 3, "w:space": 720 } });
+        });
+
+        it("should ignore individual column attributes if equalWidth is true", () => {
+            const unequalColumns = [new Column({ width: 1000, space: 400 }), new Column({ width: 2000 })];
+            const columns = new Columns({ count: 3, space: 720, equalWidth: true, children: unequalColumns });
+            const tree = new Formatter().format(columns);
+
+            expect(tree).to.deep.equal({ "w:cols": { _attr: { "w:num": 3, "w:space": 720, "w:equalWidth": true } } });
+        });
+
+        it("should have column children if equalWidth is false and individual columns are provided", () => {
+            const unequalColumns = [new Column({ width: 1000, space: 400 }), new Column({ width: 2000 })];
+            const columns = new Columns({ count: 3, space: 720, equalWidth: false, children: unequalColumns });
+            const tree = new Formatter().format(columns);
+
+            expect(tree).to.deep.equal({
+                "w:cols": [
+                    { _attr: { "w:num": 3, "w:space": 720, "w:equalWidth": false } },
+                    { "w:col": { _attr: { "w:space": 400, "w:w": 1000 } } },
+                    { "w:col": { _attr: { "w:w": 2000 } } },
+                ],
+            });
+        });
+    });
+});