SGF-508 - Add unit tests and Javadoc for the PropertiesBuilder class.
This commit is contained in:
John Blum
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/*
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* Copyright 2012 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package org.springframework.data.gemfire.util;
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import static org.hamcrest.Matchers.equalTo;
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import static org.hamcrest.Matchers.is;
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import static org.hamcrest.Matchers.not;
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import static org.hamcrest.Matchers.notNullValue;
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import static org.hamcrest.Matchers.sameInstance;
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import static org.junit.Assert.assertThat;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.StringReader;
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import java.io.StringWriter;
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import java.util.Properties;
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import org.junit.Test;
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/**
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* Test suite of test cases testing the contract and functionality of the {@link PropertiesBuilder} class.
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*
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* @author John Blum
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* @see java.util.Properties
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* @see org.springframework.data.gemfire.util.PropertiesBuilder
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* @since 1.0.0
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*/
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public class PropertiesBuilderTests {
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protected Properties singletonProperties(String name, String value) {
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Properties properties = new Properties();
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properties.setProperty(name, value);
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return properties;
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}
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@Test
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@SuppressWarnings("unchecked")
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public void constructDefaultPropertiesBuilder() throws Exception {
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PropertiesBuilder builder = new PropertiesBuilder();
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Properties properties = builder.build();
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assertThat(properties, is(notNullValue(Properties.class)));
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assertThat(builder.getObject(), is(sameInstance(properties)));
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assertThat((Class<Properties>) builder.getObjectType(), is(equalTo(Properties.class)));
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assertThat(properties.isEmpty(), is(true));
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}
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@Test
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public void constructPropertiesBuilderWithDefaultProperties() {
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Properties defaults = singletonProperties("one", "1");
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PropertiesBuilder builder = new PropertiesBuilder(defaults);
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Properties properties = builder.build();
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assertThat(properties, is(notNullValue(Properties.class)));
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assertThat(properties, is(not(sameInstance(defaults))));
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assertThat(properties, is(equalTo(defaults)));
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}
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@Test
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public void constructPropertiesBuilderWithPropertiesBuilder() {
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PropertiesBuilder defaults = new PropertiesBuilder().setProperty("one", "1");
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PropertiesBuilder builder = new PropertiesBuilder(defaults);
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Properties properties = builder.build();
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assertThat(properties, is(notNullValue(Properties.class)));
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assertThat(properties.size(), is(equalTo(1)));
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assertThat(properties.getProperty("one"), is(equalTo("1")));
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}
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@Test
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public void propertiesBuilderIsSingleton() {
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assertThat(new PropertiesBuilder().isSingleton(), is(true));
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}
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@Test
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public void addPropertiesFromPropertiesIsSuccessful() {
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PropertiesBuilder builder = PropertiesBuilder.create()
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.setProperty("one", "1")
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.setProperty("two", "@");
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Properties sink = builder.build();
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assertThat(sink, is(notNullValue(Properties.class)));
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assertThat(sink.size(), is(2));
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assertThat(sink.getProperty("one"), is(equalTo("1")));
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assertThat(sink.getProperty("two"), is(equalTo("@")));
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assertThat(sink.containsKey("three"), is(false));
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Properties source = new Properties();
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source.setProperty("two", "2");
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source.setProperty("three", "3");
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builder.add(source);
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sink = builder.build();
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assertThat(sink, is(notNullValue(Properties.class)));
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assertThat(sink.size(), is(equalTo(3)));
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assertThat(sink, is(not(sameInstance(source))));
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assertThat(sink.getProperty("one"), is(equalTo("1")));
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assertThat(sink.getProperty("two"), is(equalTo("2")));
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assertThat(sink.getProperty("three"), is(equalTo("3")));
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}
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@Test
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public void addPropertiesFromPropertiesBuilderIsSuccessful() {
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PropertiesBuilder source = PropertiesBuilder.create()
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.setProperty("one", "1")
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.setProperty("two", "2");
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Properties properties = new PropertiesBuilder().add(source).build();
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assertThat(properties, is(notNullValue(Properties.class)));
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assertThat(properties.size(), is(equalTo(2)));
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assertThat(properties.getProperty("one"), is(equalTo("1")));
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assertThat(properties.getProperty("two"), is(equalTo("2")));
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}
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@Test
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public void fromInputStreamIsSuccessful() throws IOException {
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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Properties source = singletonProperties("one", "1");
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source.store(out, "fromInputStreamIsSuccessfulTest");
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Properties sink = PropertiesBuilder.create().from(new ByteArrayInputStream(out.toByteArray())).build();
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assertThat(sink, is(notNullValue(Properties.class)));
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assertThat(sink, is(not(sameInstance(source))));
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assertThat(sink, is(equalTo(source)));
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}
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@Test
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public void fromReaderIsSuccessful() throws IOException {
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StringWriter writer = new StringWriter();
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Properties source = singletonProperties("one", "1");
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source.store(writer, "fromReaderIsSuccessfulTest");
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Properties sink = PropertiesBuilder.create().from(new StringReader(writer.toString())).build();
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assertThat(sink, is(notNullValue(Properties.class)));
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assertThat(sink, is(not(sameInstance(source))));
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assertThat(sink, is(equalTo(source)));
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}
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@Test
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public void fromXmlInputStreamIsSuccessful() throws IOException {
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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Properties source = singletonProperties("one", "1");
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source.storeToXML(out, "fromXmlInputStreamIsSuccessfulTest");
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Properties sink = PropertiesBuilder.create().fromXml(new ByteArrayInputStream(out.toByteArray())).build();
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assertThat(sink, is(notNullValue(Properties.class)));
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assertThat(sink, is(not(sameInstance(source))));
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assertThat(sink, is(equalTo(source)));
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}
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@Test
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public void setObjectPropertyValuesIsSuccessful() {
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Properties properties = PropertiesBuilder.create()
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.setProperty("boolean", Boolean.TRUE)
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.setProperty("character", 'A')
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.setProperty("integer", 1)
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.setProperty("double", Math.PI)
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.setProperty("string", (Object) "test")
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.build();
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assertThat(properties, is(notNullValue(Properties.class)));
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assertThat(properties.size(), is(equalTo(5)));
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assertThat(properties.getProperty("boolean"), is(equalTo(Boolean.TRUE.toString())));
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assertThat(properties.getProperty("character"), is(equalTo("A")));
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assertThat(properties.getProperty("integer"), is(equalTo("1")));
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assertThat(properties.getProperty("double"), is(equalTo(String.valueOf(Math.PI))));
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assertThat(properties.getProperty("string"), is(equalTo("test")));
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}
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@Test
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public void setPropertyIgnoresNullObjectValue() {
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Properties properties = PropertiesBuilder.create().setProperty("object", null).build();
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assertThat(properties, is(notNullValue(Properties.class)));
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assertThat(properties.isEmpty(), is(true));
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}
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@Test
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public void setPropertyIgnoresEmptyAndNullLiteralStringValues() {
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Properties properties = PropertiesBuilder.create()
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.setProperty("blank", " ")
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.setProperty("empty", "")
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.setProperty("null", "null")
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.build();
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assertThat(properties, is(notNullValue(Properties.class)));
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assertThat(properties.isEmpty(), is(true));
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}
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@Test
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public void setStringPropertyValuesIsSuccessful() {
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Properties properties = PropertiesBuilder.create()
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.setProperty("one", "1")
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.setProperty("two", "2")
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.build();
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assertThat(properties, is(notNullValue(Properties.class)));
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assertThat(properties.size(), is(equalTo(2)));
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assertThat(properties.getProperty("one"), is(equalTo("1")));
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assertThat(properties.getProperty("two"), is(equalTo("2")));
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}
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@Test
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public void stringLiteralIsValuable() {
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assertThat(PropertiesBuilder.create().isValuable("test"), is(true));
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}
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@Test
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public void nullStringLiteralIsNotValuable() {
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assertThat(PropertiesBuilder.create().isValuable("null"), is(false));
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assertThat(PropertiesBuilder.create().isValuable("Null"), is(false));
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assertThat(PropertiesBuilder.create().isValuable("NULL"), is(false));
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}
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@Test
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public void emptyStringLiteralIsNotValuable() {
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assertThat(PropertiesBuilder.create().isValuable(" "), is(false));
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assertThat(PropertiesBuilder.create().isValuable(""), is(false));
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}
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}
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