Create NumericFieldInput.test.js

tests/unit/components/AddToProjects/NumericFieldInput.test.js

@@ -0,0 +1,40 @@
+import { screen, userEvent } from "@testing-library/react-native";
+import NumericFieldInput from "components/AddToProjects/FieldInputs/NumericFieldInput";
+import useObservationFieldValue from "components/AddToProjects/hooks/useObservationFieldValue";
+import React from "react";
+import { renderComponent } from "tests/helpers/render";
+
+jest.mock( "components/AddToProjects/hooks/useObservationFieldValue" );
+
+const actor = userEvent.setup( );
+const mockSetValue = jest.fn( );
+
+beforeEach( ( ) => {
+  mockSetValue.mockClear( );
+  useObservationFieldValue.mockImplementation( () => ( {
+    value: "",
+    setValue: mockSetValue,
+  } ) );
+} );
+
+describe( "NumericFieldInput", ( ) => {
+  it( "reads the OFV value from the hook for the given obsFieldId", ( ) => {
+    renderComponent( <NumericFieldInput obsFieldId={100} /> );
+
+    expect( useObservationFieldValue ).toHaveBeenCalledWith( 100 );
+  } );
+
+  it( "renders with placeholder", ( ) => {
+    renderComponent( <NumericFieldInput obsFieldId={100} /> );
+
+    expect( screen.getByPlaceholderText( "Enter a number" ) ).toBeVisible( );
+  } );
+
+  it( "calls setValue with the typed number", async ( ) => {
+    renderComponent( <NumericFieldInput obsFieldId={100} /> );
+
+    await actor.type( screen.getByPlaceholderText( "Enter a number" ), "3" );
+
+    expect( mockSetValue ).toHaveBeenCalledWith( "3" );
+  } );
+} );