add support for floating drawings

- added need elements and test for them

src/file/drawing/drawing.spec.ts

@@ -2,14 +2,12 @@ import { assert } from "chai";
 import * as fs from "fs";
 
 import { Utility } from "../../tests/utility";
-import { Drawing } from "./";
+import { Drawing, DrawingOptions, PlacementPosition } from "./";
 
-describe("Drawing", () => {
-    let currentBreak: Drawing;
-
-    beforeEach(() => {
-        const path = "./demo/images/image1.jpeg";
-        currentBreak = new Drawing({
+function createDrawing(drawingOptions?: DrawingOptions) {
+    const path = "./demo/images/image1.jpeg";
+    return new Drawing(
+        {
             fileName: "test.jpg",
             referenceId: 1,
             stream: fs.createReadStream(path),
@@ -24,14 +22,33 @@ describe("Drawing", () => {
                     y: 100 * 9525,
                 },
             },
-        });
-    });
+        },
+        drawingOptions,
+    );
+}
+
+describe("Drawing", () => {
+    let currentBreak: Drawing;
 
     describe("#constructor()", () => {
         it("should create a Drawing with correct root key", () => {
+            currentBreak = createDrawing();
             const newJson = Utility.jsonify(currentBreak);
             assert.equal(newJson.rootKey, "w:drawing");
-            // console.log(JSON.stringify(newJson, null, 2));
+        });
+
+        it("should create a drawing with inline element when there are no options passed", () => {
+            currentBreak = createDrawing();
+            const newJson = Utility.jsonify(currentBreak);
+            assert.equal(newJson.root[0].rootKey, "wp:inline");
+        });
+
+        it("should create a drawing with anchor element when there options are passed", () => {
+            currentBreak = createDrawing({
+                position: PlacementPosition.FLOATING,
+            });
+            const newJson = Utility.jsonify(currentBreak);
+            assert.equal(newJson.root[0].rootKey, "wp:anchor");
         });
     });
 });