IdempotentTest.java

package com.stripe.functional;

import com.stripe.BaseStripeFunctionalTest;
import com.stripe.exception.*;
import com.stripe.model.Charge;
import com.stripe.net.RequestOptions;
import org.junit.Test;

import java.util.UUID;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;

public class IdempotentTest extends BaseStripeFunctionalTest {
    @Test
    public void testIdempotentRequestSent() throws CardException, APIException, AuthenticationException, InvalidRequestException, APIConnectionException {
        RequestOptions options = RequestOptions.builder()
                .setIdempotencyKey(UUID.randomUUID().toString())
                .build();

        Charge firstCharge = Charge.create(defaultChargeParams, options);
        Charge secondCharge = Charge.create(defaultChargeParams, options);

        assertEquals(firstCharge.getId(), secondCharge.getId());
    }

    @Test
    public void testNotIdempotentWhenUnset() throws CardException, APIException, AuthenticationException, InvalidRequestException, APIConnectionException {
        RequestOptions options = RequestOptions.builder().build();

        Charge firstCharge = Charge.create(defaultChargeParams, options);
        Charge secondCharge = Charge.create(defaultChargeParams, options);

        assertNotSame(firstCharge.getId(), secondCharge.getId());
    }

    @Test
    public void testClearingIdempotentcyActuallyWorks() throws CardException, APIException, AuthenticationException, InvalidRequestException, APIConnectionException {
        RequestOptions options = RequestOptions.builder()
                .setIdempotencyKey(UUID.randomUUID().toString())
                .clearIdempotencyKey()
                .build();

        Charge firstCharge = Charge.create(defaultChargeParams, options);
        Charge secondCharge = Charge.create(defaultChargeParams, options);

        assertNotSame(firstCharge.getId(), secondCharge.getId());
    }

    @Test
    public void testDefaultOptionsHaveUnsetIdempotentRequest() throws CardException, APIException, AuthenticationException, InvalidRequestException, APIConnectionException {
        RequestOptions options = RequestOptions.getDefault();

        Charge firstCharge = Charge.create(defaultChargeParams, options);
        Charge secondCharge = Charge.create(defaultChargeParams, options);

        assertNotSame(firstCharge.getId(), secondCharge.getId());
    }
}