| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.johnzon.core; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import jakarta.json.Json; |
| import jakarta.json.JsonArray; |
| import jakarta.json.JsonNumber; |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import java.math.BigDecimal; |
| import java.math.BigInteger; |
| import java.util.concurrent.TimeUnit; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.fail; |
| |
| |
| public class JsonNumberTest { |
| @Test |
| public void nonZeroFractional() { |
| final JsonNumber number = Json.createArrayBuilder() |
| .add(12345.6489) |
| .build() |
| .getJsonNumber(0); |
| try { |
| number.intValueExact(); |
| fail(); |
| } catch (final ArithmeticException ae) { |
| // ok |
| } |
| try { |
| number.longValueExact(); |
| fail(); |
| } catch (final ArithmeticException ae) { |
| // ok |
| } |
| } |
| @Test |
| public void equals() { |
| final JsonNumber a = Json.createObjectBuilder().add("a", 1).build().getJsonNumber("a"); |
| final JsonNumber b = Json.createObjectBuilder().add("b", 1.1).build().getJsonNumber("b"); |
| assertFalse(a.equals(b)); |
| assertFalse(b.equals(a)); |
| } |
| |
| @Test(expected=ArithmeticException.class) |
| public void testBigIntegerExact() { |
| JsonArray array = Json.createArrayBuilder().add(100.0200).build(); |
| array.getJsonNumber(0).bigIntegerValueExact(); |
| } |
| |
| @Test |
| public void testBigInteger() { |
| JsonArray array = Json.createArrayBuilder().add(100.0200).build(); |
| Assert.assertEquals(new BigInteger("100"), array.getJsonNumber(0).bigIntegerValue()); |
| } |
| |
| @Test |
| public void testSlowBigIntegerConversion() { |
| JsonArray array = Json.createArrayBuilder() |
| .add(new BigDecimal("1e1000")) // 1e20000000 --> lost of damage |
| .add(Double.MAX_VALUE) |
| .build(); |
| |
| { // for Double |
| long start = System.nanoTime(); |
| for (int i = 1; i < 5; i++) { |
| // if it takes a few seconds in any machine, that's already too much |
| if (TimeUnit.NANOSECONDS.toSeconds(System.nanoTime() - start) > 1) { |
| fail("took too long: " + TimeUnit.NANOSECONDS.toSeconds(System.nanoTime() - start) + " s" + |
| " to compute " + i + " conversions toBigInteger"); |
| } |
| |
| array.getJsonNumber(1).bigIntegerValue(); |
| } |
| long end = System.nanoTime(); |
| System.out.println("took: " + TimeUnit.NANOSECONDS.toMillis(end - start) + " ms"); |
| } |
| |
| { // for Number |
| long start = System.nanoTime(); |
| for (int i = 1; i < 100; i++) { |
| // if it takes a second in any machine, that's already too much |
| // depends on the allowed scale in JsonNumberImpl#checkBigDecimalScale |
| if (TimeUnit.NANOSECONDS.toSeconds(System.nanoTime() - start) > 1) { |
| fail("took too long: " + TimeUnit.NANOSECONDS.toSeconds(System.nanoTime() - start) + " s" + |
| " to compute " + i + " conversions toBigInteger"); |
| } |
| |
| array.getJsonNumber(0).bigIntegerValue(); |
| } |
| long end = System.nanoTime(); |
| System.out.println("took: " + TimeUnit.NANOSECONDS.toMillis(end - start) + " ms"); |
| } |
| } |
| |
| @Test(expected = ArithmeticException.class) |
| public void testBigIntegerConversionLimit() { |
| JsonArray array = Json.createArrayBuilder() |
| .add(new BigDecimal("1e1001")) // limit is 1000 by default |
| .build(); |
| |
| array.getJsonNumber(0).bigIntegerValue(); |
| } |
| |
| @Test |
| public void testBigIntegerButFromJustALongTooLong() { |
| final StringWriter writer = new StringWriter(); |
| Json.createGenerator(writer).writeStartObject().write("value", new BigInteger("10002000000000000000")).writeEnd().close(); |
| final String asJson = writer.toString(); |
| final JsonNumber jsonNumber = Json.createReader(new StringReader(asJson)).readObject().getJsonNumber("value"); |
| Assert.assertEquals(new BigInteger("10002000000000000000"), jsonNumber.bigIntegerValue()); |
| } |
| |
| @Test |
| public void testHashCode() { |
| JsonNumber a = Json.createObjectBuilder().add("a", 1).build().getJsonNumber("a"); |
| JsonNumber b = Json.createObjectBuilder().add("b", 1.1).build().getJsonNumber("b"); |
| |
| Assert.assertEquals(a.hashCode(), a.bigDecimalValue().hashCode()); |
| Assert.assertEquals(b.hashCode(), b.bigDecimalValue().hashCode()); |
| } |
| } |