Add tests

src/patcher/util.spec.ts

@@ -0,0 +1,46 @@
+import { expect } from "chai";
+
+import { createTextElementContents, getFirstLevelElements, patchSpaceAttribute, toJson } from "./util";
+
+describe("util", () => {
+    describe("toJson", () => {
+        it("should return an Element", () => {
+            const output = toJson("<xml></xml>");
+            expect(output).to.be.an("object");
+        });
+    });
+
+    describe("createTextElementContents", () => {
+        it("should return an array of elements", () => {
+            const output = createTextElementContents("hello");
+            expect(output).to.deep.equal([{ type: "text", text: "hello" }]);
+        });
+    });
+
+    describe("patchSpaceAttribute", () => {
+        it("should return an element with the xml:space attribute", () => {
+            const output = patchSpaceAttribute({ type: "element", name: "xml" });
+            expect(output).to.deep.equal({
+                type: "element",
+                name: "xml",
+                attributes: {
+                    "xml:space": "preserve",
+                },
+            });
+        });
+    });
+
+    describe("getFirstLevelElements", () => {
+        it("should return an empty array if no elements are found", () => {
+            const output = toJson("<Relationships></Relationships>");
+            const elements = getFirstLevelElements(output, "Relationships");
+            expect(elements).to.deep.equal([]);
+        });
+
+        it("should return an array if elements are found", () => {
+            const output = toJson("<Relationships><Relationship></Relationship></Relationships>");
+            const elements = getFirstLevelElements(output, "Relationships");
+            expect(elements).to.deep.equal([{ type: "element", name: "Relationship" }]);
+        });
+    });
+});