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JavaVersionTests.java
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JavaVersionTests.java
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/*
* Copyright 2012-2020 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
*
* https://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.system;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.condition.EnabledOnJre;
import org.junit.jupiter.api.condition.JRE;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link JavaVersion}.
*
* @author Stephane Nicoll
*/
class JavaVersionTests {
@Test
void getJavaVersionShouldBeAvailable() {
assertThat(JavaVersion.getJavaVersion()).isNotNull();
}
@Test
void compareToWhenComparingSmallerToGreaterShouldBeLessThanZero() {
assertThat(JavaVersion.EIGHT.compareTo(JavaVersion.NINE)).isLessThan(0);
}
@Test
void compareToWhenComparingGreaterToSmallerShouldBeGreaterThanZero() {
assertThat(JavaVersion.NINE.compareTo(JavaVersion.EIGHT)).isGreaterThan(0);
}
@Test
void compareToWhenComparingSameShouldBeZero() {
assertThat(JavaVersion.EIGHT.compareTo(JavaVersion.EIGHT)).isEqualTo(0);
}
@Test
void isEqualOrNewerThanWhenComparingSameShouldBeTrue() {
assertThat(JavaVersion.EIGHT.isEqualOrNewerThan(JavaVersion.EIGHT)).isTrue();
}
@Test
void isEqualOrNewerThanWhenSmallerToGreaterShouldBeFalse() {
assertThat(JavaVersion.EIGHT.isEqualOrNewerThan(JavaVersion.NINE)).isFalse();
}
@Test
void isEqualOrNewerThanWhenGreaterToSmallerShouldBeTrue() {
assertThat(JavaVersion.NINE.isEqualOrNewerThan(JavaVersion.EIGHT)).isTrue();
}
@Test
void isOlderThanThanWhenComparingSameShouldBeFalse() {
assertThat(JavaVersion.EIGHT.isOlderThan(JavaVersion.EIGHT)).isFalse();
}
@Test
void isOlderThanWhenSmallerToGreaterShouldBeTrue() {
assertThat(JavaVersion.EIGHT.isOlderThan(JavaVersion.NINE)).isTrue();
}
@Test
void isOlderThanWhenGreaterToSmallerShouldBeFalse() {
assertThat(JavaVersion.NINE.isOlderThan(JavaVersion.EIGHT)).isFalse();
}
@Test
@EnabledOnJre(JRE.JAVA_8)
void currentJavaVersionEight() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.EIGHT);
}
@Test
@EnabledOnJre(JRE.JAVA_9)
void currentJavaVersionNine() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.NINE);
}
@Test
@EnabledOnJre(JRE.JAVA_10)
void currentJavaVersionTen() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.TEN);
}
@Test
@EnabledOnJre(JRE.JAVA_11)
void currentJavaVersionEleven() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.ELEVEN);
}
@Test
@EnabledOnJre(JRE.JAVA_12)
void currentJavaVersionTwelve() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.TWELVE);
}
@Test
@EnabledOnJre(JRE.JAVA_13)
void currentJavaVersionThirteen() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.THIRTEEN);
}
@Test
@EnabledOnJre(JRE.JAVA_14)
void currentJavaVersionFourteen() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.FOURTEEN);
}
@Test
@EnabledOnJre(JRE.JAVA_15)
void currentJavaVersionFifteen() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.FIFTEEN);
}
@Test
@EnabledOnJre(JRE.JAVA_16)
void currentJavaVersionSixteen() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.SIXTEEN);
}
@Test
@EnabledOnJre(JRE.JAVA_17)
void currentJavaVersionSeventeen() {
assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.SEVENTEEN);
}
}