package net.emaze.dysfunctional.strings.lexcasts;
import net.emaze.dysfunctional.dispatching.delegates.Delegate;
import net.emaze.dysfunctional.options.Maybe;
import org.junit.Assert;
import org.junit.Test;
/**
*
* @author rferranti
*/
public class IntegerTryParserTest {
@Test(expected = IllegalArgumentException.class)
public void excedingMaxRadixYieldsException() {
new IntegerTryParser(Character.MAX_RADIX + 1);
}
@Test(expected = IllegalArgumentException.class)
public void lessThanMinRadixYieldsException() {
new IntegerTryParser(Character.MIN_RADIX - 1);
}
@Test(expected = ClassCastException.class)
public void passingNonStringToErasureYieldsException() {
Delegate d = new IntegerTryParser(10);
d.perform(new Object());
}
@Test
public void parsingNullStringYieldsNothing() {
final Maybe<Integer> got = new IntegerTryParser(10).perform(null);
Assert.assertFalse(got.hasValue());
}
@Test
public void parsingInvalidStringYieldsNothing() {
final Maybe<Integer> got = new IntegerTryParser(10).perform("A");
Assert.assertFalse(got.hasValue());
}
@Test
public void parsingValidStringYieldsJustValue() {
final Maybe<Integer> got = new IntegerTryParser(10).perform("1");
Assert.assertEquals(Maybe.just(1), got);
}
}