How to submit a form or press the enter key on an input with react-native-testing-library

I have the following problem: I need to test if a function is being called on my test, but to test it properly I need to press enter or submit the form, and it doesn't seem to work as intended. I've already tried the following:

fireEvent.keyDown(input, { key: 'Enter', code: 'Enter' });
fireEvent.submit(input);

The only way to trigger the onSubmitEditing prop of my component is by pressing the Enter key.

Here's the code I'm trying to test:

<Input placeholder="Cirurgião"
    testID='input_buscaCirurgiao_index'
    value={this.state.text}
    autoCorrect={false}
    keyboardType={(Platform.OS === 'android') ? 'visible-password' : 'default'}
    onChangeText={(item) => this.setState({ text: item })}
    onSubmitEditing={() => { this._searchPressingEnter() }} // i need to test this
    autoCapitalize='none' 
/>

Here's the code for the _searchPressingEnter function:

_searchPressingEnter() {
    Keyboard.dismiss()

    let item = this.state.text

    this._buscarCirurgioes(item)
}

Once the Enter key has been pressed, the _searchPressingEnter function should be called, thus triggering the onSubmitEditing prop.