fix: 🐛 fix SelectField of Shadcn UI (#154)

Select field give validation error even if value is selected
Default value for select from zod schema not pre selected
Add Test case for Shadcn zod enum type

apps/web/cypress/component/autoform/shadcn-zod/enums.cy.tsx

@@ -0,0 +1,68 @@
+import React from "react";
+import { AutoForm } from "@autoform/shadcn/components/ui/autoform/AutoForm";
+import { ZodProvider } from "@autoform/zod";
+import { z } from "zod";
+import { TestWrapper } from "./utils";
+
+describe("AutoForm Enums Tests", () => {
+  const arraySchema = z.object({
+    gender: z.enum(["male", "female"]),
+  });
+  const schemaProvider = new ZodProvider(arraySchema);
+
+  const arraySchemaWithDefault = z.object({
+    gender: z.enum(["male", "female"]).default("male"),
+  });
+  const schemaProviderWithDefault = new ZodProvider(arraySchemaWithDefault);
+
+  it("renders enums fields correctly", () => {
+    cy.mount(
+      <TestWrapper>
+        <AutoForm
+          schema={schemaProvider}
+          onSubmit={cy.stub().as("onSubmit")}
+          withSubmit
+        />
+      </TestWrapper>,
+    );
+
+    // Check if select trigger exists
+    cy.get('[role="combobox"]').should("exist");
+
+    // Open the select dropdown
+    cy.get('[role="combobox"]').click();
+
+    // Verify options are rendered correctly
+    cy.get('[role="option"]').should("have.length", 2);
+    cy.get('[role="option"]').eq(0).should("have.text", "male");
+    cy.get('[role="option"]').eq(1).should("have.text", "female");
+
+    // Test form submission with selected value
+    cy.get('[role="option"]').contains("female").click();
+    cy.get("form").submit();
+    cy.get("@onSubmit").should("have.been.calledWith", {
+      gender: "female",
+    });
+  });
+
+  it("handles default values for enums correctly", () => {
+    cy.mount(
+      <TestWrapper>
+        <AutoForm
+          schema={schemaProviderWithDefault}
+          onSubmit={cy.stub().as("onSubmit")}
+          withSubmit
+        />
+      </TestWrapper>,
+    );
+
+    // Verify default value is selected
+    cy.get('[role="combobox"]').should("contain.text", "male");
+
+    // Submit form without changes to verify default value
+    cy.get("form").submit();
+    cy.get("@onSubmit").should("have.been.calledWith", {
+      gender: "male",
+    });
+  });
+});

packages/shadcn/src/components/ui/autoform/components/SelectField.tsx

@@ -17,7 +17,19 @@ export const SelectField: React.FC<AutoFormFieldProps> = ({
   const { key, ...props } = inputProps;
 
   return (
-    <Select {...props}>
+    <Select
+      {...props}
+      onValueChange={(value) => {
+        const syntheticEvent = {
+          target: {
+            value,
+            name: field.key,
+          },
+        } as React.ChangeEvent<HTMLInputElement>;
+        props.onChange(syntheticEvent);
+      }}
+      defaultValue={field.default}
+    >
       <SelectTrigger id={id} className={error ? "border-destructive" : ""}>
         <SelectValue placeholder="Select an option" />
       </SelectTrigger>