104 lines
3.3 KiB
Java
104 lines
3.3 KiB
Java
package org.bukkit.metadata;
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import static org.junit.Assert.*;
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import org.bukkit.plugin.Plugin;
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import org.bukkit.plugin.TestPlugin;
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import org.junit.Test;
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public class MetadataValueAdapterTest {
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private TestPlugin plugin = new TestPlugin("x");
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@Test
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public void testAdapterBasics() {
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IncrementingMetaValue mv = new IncrementingMetaValue(plugin);
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// check getOwningPlugin
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assertEquals(mv.getOwningPlugin(), this.plugin);
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// Check value-getting and invalidation.
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assertEquals(new Integer(1), mv.value());
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assertEquals(new Integer(2), mv.value());
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mv.invalidate();
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assertEquals(new Integer(1), mv.value());
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}
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@Test
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public void testAdapterConversions() {
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IncrementingMetaValue mv = new IncrementingMetaValue(plugin);
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assertEquals(1, mv.asInt());
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assertEquals(2L, mv.asLong());
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assertEquals(3.0, mv.asFloat(), 0.001);
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assertEquals(4, mv.asByte());
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assertEquals(5.0, mv.asDouble(), 0.001);
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assertEquals(6, mv.asShort());
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assertEquals("7", mv.asString());
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}
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/** Boolean conversion is non-trivial, we want to test it thoroughly. */
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@Test
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public void testBooleanConversion() {
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// null is False.
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assertEquals(false, simpleValue(null).asBoolean());
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// String to boolean.
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assertEquals(true, simpleValue("True").asBoolean());
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assertEquals(true, simpleValue("TRUE").asBoolean());
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assertEquals(false, simpleValue("false").asBoolean());
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// Number to boolean.
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assertEquals(true, simpleValue(1).asBoolean());
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assertEquals(true, simpleValue(5.0).asBoolean());
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assertEquals(false, simpleValue(0).asBoolean());
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assertEquals(false, simpleValue(0.1).asBoolean());
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// Boolean as boolean, of course.
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assertEquals(true, simpleValue(Boolean.TRUE).asBoolean());
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assertEquals(false, simpleValue(Boolean.FALSE).asBoolean());
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// any object that is not null and not a Boolean, String, or Number is true.
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assertEquals(true, simpleValue(new Object()).asBoolean());
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}
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/** Test String conversions return an empty string when given null. */
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@Test
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public void testStringConversionNull() {
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assertEquals("", simpleValue(null).asString());
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}
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/**
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* Get a fixed value MetadataValue.
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*
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* @param value the value to wrap
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* @return the fixed value
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*/
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private MetadataValue simpleValue(Object value) {
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return new FixedMetadataValue(plugin, value);
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}
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/**
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* A sample non-trivial MetadataValueAdapter implementation.
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*
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* The rationale for implementing an incrementing value is to have a value
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* which changes with every call to value(). This is important for testing
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* because we want to make sure all the tested conversions are calling the
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* value() method exactly once and no caching is going on.
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*/
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class IncrementingMetaValue extends MetadataValueAdapter {
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private int internalValue = 0;
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protected IncrementingMetaValue(Plugin owningPlugin) {
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super(owningPlugin);
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}
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@Override
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public Object value() {
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return ++internalValue;
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}
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@Override
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public void invalidate() {
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internalValue = 0;
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}
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}
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}
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