/*
* Copyright 2012-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.env;
import java.util.Random;
import java.util.UUID;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.spy;
/**
* Tests for {@link RandomValuePropertySource}.
*
* @author Dave Syer
* @author Matt Benson
*/
public class RandomValuePropertySourceTests {
private RandomValuePropertySource source = new RandomValuePropertySource();
@Test
public void notRandom() {
assertThat(this.source.getProperty("foo")).isNull();
}
@Test
public void string() {
assertThat(this.source.getProperty("random.string")).isNotNull();
}
@Test
public void intValue() {
Integer value = (Integer) this.source.getProperty("random.int");
assertThat(value).isNotNull();
}
@Test
public void uuidValue() {
String value = (String) this.source.getProperty("random.uuid");
assertThat(value).isNotNull();
assertThat(UUID.fromString(value)).isNotNull();
}
@Test
public void intRange() {
Integer value = (Integer) this.source.getProperty("random.int[4,10]");
assertThat(value).isNotNull();
assertThat(value >= 4).isTrue();
assertThat(value < 10).isTrue();
}
@Test
public void intMax() {
Integer value = (Integer) this.source.getProperty("random.int(10)");
assertThat(value).isNotNull().isLessThan(10);
}
@Test
public void longValue() {
Long value = (Long) this.source.getProperty("random.long");
assertThat(value).isNotNull();
}
@Test
public void longRange() {
Long value = (Long) this.source.getProperty("random.long[4,10]");
assertThat(value).isNotNull().isBetween(4L, 10L);
}
@Test
public void longMax() {
Long value = (Long) this.source.getProperty("random.long(10)");
assertThat(value).isNotNull().isLessThan(10L);
}
@Test
public void longOverflow() {
RandomValuePropertySource source = spy(this.source);
given(source.getSource()).willReturn(new Random() {
@Override
public long nextLong() {
// constant that used to become -8, now becomes 8
return Long.MIN_VALUE;
}
});
Long value = (Long) source.getProperty("random.long(10)");
assertThat(value).isNotNull().isGreaterThanOrEqualTo(0L).isLessThan(10L);
value = (Long) source.getProperty("random.long[4,10]");
assertThat(value).isNotNull().isGreaterThanOrEqualTo(4L).isLessThan(10L);
}
}