code/core/src/test/java/org/apache/tamaya/core/internal/converters/BigDecimalConverterTest.java

/*
 * 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.tamaya.core.internal.converters;

import org.apache.tamaya.Configuration;
import org.apache.tamaya.spi.ConversionContext;
import org.junit.Test;

import java.math.BigDecimal;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

/**
 * Tests the default converter for bytes.
 */
public class BigDecimalConverterTest {

    /**
     * Test conversion. The createValue are provided by
     * {@link org.apache.tamaya.core.internal.converters.ConverterTestsPropertySource}.
     *
     * @throws Exception
     */
    @Test
    public void testConvert_BigDecimal_Decimal() throws Exception {
        Configuration config = Configuration.current();
        BigDecimal valueRead = config.get("tests.converter.bd.decimal", BigDecimal.class);
        assertThat(valueRead).isNotNull();
        assertThat(valueRead).isEqualTo(new BigDecimal(101));
    }

    /**
     * Test conversion. The createValue are provided by
     * {@link org.apache.tamaya.core.internal.converters.ConverterTestsPropertySource}.
     *
     * @throws Exception
     */
    @Test
    public void testConvert_BigDecimal_Hex() throws Exception {
        Configuration config = Configuration.current();
        BigDecimal valueRead = config.get("tests.converter.bd.hex.lowerX", BigDecimal.class);
        assertThat(valueRead).isNotNull();
        assertThat(valueRead).isEqualTo(new BigDecimal("47"));
        valueRead = config.get("tests.converter.bd.hex.upperX", BigDecimal.class);
        assertThat(valueRead).isNotNull();
        assertThat(valueRead).isEqualTo(new BigDecimal("63"));
        valueRead = config.get("tests.converter.bd.hex.negLowerX", BigDecimal.class);
        assertThat(valueRead).isNotNull();
        assertThat(valueRead).isEqualTo(new BigDecimal("-47"));
        valueRead = config.get("tests.converter.bd.hex.negUpperX", BigDecimal.class);
        assertThat(valueRead).isNotNull();
        assertThat(valueRead).isEqualTo(new BigDecimal("-63"));
    }

    /**
     * Test conversion. The createValue are provided by
     * {@link org.apache.tamaya.core.internal.converters.ConverterTestsPropertySource}.
     *
     * @throws Exception
     */
    @Test
    public void testConvert_NotPresent() throws Exception {
        Configuration config = Configuration.current();
        BigDecimal valueRead = config.get("tests.converter.bd.foo", BigDecimal.class);
        assertThat(valueRead).isNull();
    }

    /**
     * Test conversion. The createValue are provided by
     * {@link ConverterTestsPropertySource}.
     *
     * @throws Exception
     */
    @Test
    public void testConvert_BigDecimal_BigValue() throws Exception {
        Configuration config = Configuration.current();
        BigDecimal valueRead = config.get("tests.converter.bd.big", BigDecimal.class);
        assertThat(valueRead).isNotNull();
        assertThat(new BigDecimal("101666666666666662333337263723628763821638923628193612983618293628763"))
                        .isEqualTo(valueRead);
    }

    /**
     * Test conversion. The createValue are provided by
     * {@link ConverterTestsPropertySource}.
     *
     * @throws Exception
     */
    @Test
    public void testConvert_BigDecimal_BigFloatValue() throws Exception {
        Configuration config = Configuration.current();
        BigDecimal valueRead = config.get("tests.converter.bd.bigFloat", BigDecimal.class);
        assertThat(valueRead).isNotNull();
        assertThat(new BigDecimal("1016666666666666623333372637236287638216389293628763.1016666666666666623333372"
                + "63723628763821638923628193612983618293628763"))
                        .isEqualTo(valueRead);
    }

    @Test
    public void converterHandlesNullValueCorrectly() throws Exception {
        ConversionContext context = mock(ConversionContext.class);

        BigDecimalConverter converter = new BigDecimalConverter();
        BigDecimal value = converter.convert("", context);

        assertThat(value).isNull();
    }

    @Test
    public void callToConvertAddsMoreSupportedFormatsToTheContext() throws Exception {
        ConversionContext context = mock(ConversionContext.class);

        BigDecimalConverter converter = new BigDecimalConverter();
        BigDecimal value = converter.convert("", context);

        assertThat(value).isNull();
        verify(context).addSupportedFormats(BigDecimalConverter.class, "<bigDecimal> -> new BigDecimal(String)");
    }

    @Test
    public void testEquality() throws Exception {
        BigDecimalConverter converter = new BigDecimalConverter();

        assertThat(converter).isEqualTo(new BigDecimalConverter());
        assertThat(converter).isNotEqualTo(new BigIntegerConverter());
        assertThat(converter).isNotEqualTo(null);
    }
}