Refs rjsf-team#442: Fix erroneous test cases.

Author: n1k0

test/StringField_test.js

@@ -78,9 +78,10 @@ describe("StringField", () => {
  });
 
  it("should handle an empty string change event", () => {
- const {comp, node} = createFormComponent({schema: {
- type: "string",
- }});
+ const {comp, node} = createFormComponent({
+ schema: {type: "string"},
+ formData: "x",
+ });
 
  Simulate.change(node.querySelector("input"), {
  target: {value: ""}
@@ -217,11 +218,13 @@ describe("StringField", () => {
 
  describe("TextareaWidget", () => {
  it("should handle an empty string change event", () => {
- const {comp, node} = createFormComponent({schema: {
- type: "string",
- }});
+ const {comp, node} = createFormComponent({
+ schema: {type: "string"},
+ uiSchema: {"ui:widget": "textarea"},
+ formData: "x",
+ });
 
- Simulate.change(node.querySelector("input"), {
+ Simulate.change(node.querySelector("textarea"), {
  target: {value: ""}
  });