47 lines
1.4 KiB
Java

/*
* Copyright 2024 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 xyz.zhouxy.plusone.commons.base;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
import lombok.extern.slf4j.Slf4j;
@Slf4j
class RefTests {
@Test
void testRef() {
Ref<String> strRef = Ref.of("ZhouXY");
assertTrue(strRef.checkValue("ZhouXY"::equals));
assertFalse(strRef.checkValue("ZhouXY1"::equals));
apply(strRef);
assertEquals("Hello ZhouXY", strRef.getValue());
assertTrue(strRef.checkValue("Hello ZhouXY"::equals));
log.info("strRef: {}", strRef);
Ref<String> intStringRef = Ref.of("108");
Ref<Integer> integerRef = intStringRef.transform(Integer::parseInt);
assertEquals(108, integerRef.getValue());
}
void apply(Ref<String> strRef) {
strRef.transformValue(str -> "Hello " + str);
}
}