Merge branch 'feature/fix-enum-empty-bug' of https://github.com/huhuaaa/react-jsonschema-form into huhuaaa-feature/fix-enum-empty-bug

Author: epicfaace

src/components/widgets/SelectWidget.js

@@ -91,7 +91,9 @@ function SelectWidget(props) {
         const newValue = getValue(event, multiple);
         onChange(processValue(schema, newValue));
       }}>
-      {!multiple && !schema.default && <option value="">{placeholder}</option>}
+      {!multiple && schema.default === undefined && (
+        <option value="">{placeholder}</option>
+      )}
       {enumOptions.map(({ value, label }, i) => {
         const disabled = enumDisabled && enumDisabled.indexOf(value) != -1;
         return (

test/NumberField_test.js

@@ -290,5 +290,82 @@ describe("NumberField", () => {
 
       expect(node.querySelector("select").id).eql("root");
     });
+
+    it("should render a select element if set the enum.", () => {
+      const schema = {
+        type: "object",
+        properties: {
+          foo: {
+            type: "number",
+            enum: [0],
+          },
+        },
+      };
+
+      const { node } = createFormComponent({
+        schema,
+      });
+
+      const selects = node.querySelectorAll("select");
+      expect(selects).to.have.length.of(1);
+    });
+
+    it("should render a select element and it's value is empty, if set the enum and the default value is undefined.", () => {
+      const schema = {
+        type: "object",
+        properties: {
+          foo: {
+            type: "number",
+            enum: [0],
+          },
+        },
+      };
+
+      const { node } = createFormComponent({
+        schema,
+      });
+
+      const selects = node.querySelectorAll("select");
+      expect(selects[0].value).eql("");
+    });
+
+    it("should render a select element and it's first option has an empty innerHTML, if set the enum and the default value is undefined.", () => {
+      const schema = {
+        type: "object",
+        properties: {
+          foo: {
+            type: "number",
+            enum: [0],
+          },
+        },
+      };
+
+      const { node } = createFormComponent({
+        schema,
+      });
+
+      const options = node.querySelectorAll("option");
+      expect(options[0].innerHTML).eql("");
+    });
+
+    it("should render a select element and it's first option is '0', if set the enum and the default value is 0.", () => {
+      const schema = {
+        type: "object",
+        properties: {
+          foo: {
+            type: "number",
+            enum: [0],
+            default: 0,
+          },
+        },
+      };
+
+      const { node } = createFormComponent({
+        schema,
+      });
+
+      const options = node.querySelectorAll("option");
+      expect(options[0].innerHTML).eql("0");
+    });
   });
 });

test/StringField_test.js

@@ -350,6 +350,86 @@ describe("StringField", () => {
 
       expect(node.querySelector("#custom")).to.exist;
     });
+
+    it("should render a select element and it's first option is 'false', if set the enum and the default value is false.", () => {
+      const schema = {
+        type: "object",
+        properties: {
+          foo: {
+            type: "string",
+            enum: [false, true],
+            default: false,
+          },
+        },
+      };
+
+      const { node } = createFormComponent({
+        schema,
+      });
+
+      const options = node.querySelectorAll("option");
+      expect(options[0].innerHTML).eql("false");
+    });
+
+    it("should render a select element and the option's length is equal the enum's length, if set the enum.", () => {
+      const schema = {
+        type: "object",
+        properties: {
+          foo: {
+            type: "string",
+            enum: [false, true],
+            default: false,
+          },
+        },
+      };
+
+      const { node } = createFormComponent({
+        schema,
+      });
+
+      const options = node.querySelectorAll("option");
+      expect(options.length).eql(2);
+    });
+
+    it("should render a select element and the option's length is equal the enum's length, if set the enum and the default value is empty.", () => {
+      const schema = {
+        type: "object",
+        properties: {
+          foo: {
+            type: "string",
+            enum: ["", "1"],
+            default: "",
+          },
+        },
+      };
+
+      const { node } = createFormComponent({
+        schema,
+      });
+
+      const options = node.querySelectorAll("option");
+      expect(options.length).eql(2);
+    });
+
+    it("shouldn't render two empty options, when the default value is empty.", () => {
+      const schema = {
+        type: "object",
+        properties: {
+          foo: {
+            type: "string",
+            enum: [""],
+            default: "",
+          },
+        },
+      };
+
+      const { node } = createFormComponent({
+        schema,
+      });
+
+      const options = node.querySelectorAll("option");
+      expect(options.length).eql(1);
+    });
   });
 
   describe("TextareaWidget", () => {