package com.mopub.common.util;
import com.mopub.common.test.support.SdkTestRunner;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.util.HashSet;
import java.util.Set;
import static org.fest.assertions.api.Assertions.assertThat;
@RunWith(SdkTestRunner.class)
public class UtilsTest {
@Test
public void generateUniqueId_withMultipleInvocations_shouldReturnUniqueValues() throws Exception {
final int expectedIdCount = 100;
Set<Long> ids = new HashSet<Long>(expectedIdCount);
for (int i = 0; i < expectedIdCount; i++) {
final long id = Utils.generateUniqueId();
ids.add(id);
}
assertThat(ids).hasSize(expectedIdCount);
}
}