Stepan Koltsov
33a59ff5fe
In the most places in frontend identifier is stored in Name class, was in String. Name has two advantages over String: * validation: you cannot accidentally create identifier with dot, for example * readability: if you see String, you don't now whether it is identifier, fq name, jvm class name or something else Name's disadvantage is (small) performance overhead. We have no value types in JVM.
107 lines
3.9 KiB
Java
107 lines
3.9 KiB
Java
/*
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* Copyright 2010-2012 JetBrains s.r.o.
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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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package org.jetbrains.jet;
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import com.google.common.collect.Lists;
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import org.jetbrains.jet.lang.resolve.name.FqName;
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import org.jetbrains.jet.lang.resolve.name.FqNameUnsafe;
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import org.jetbrains.jet.lang.resolve.name.Name;
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import org.junit.Assert;
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import org.junit.Test;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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/**
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* @author Stepan Koltsov
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*/
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public class FqNameTest {
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@Test
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public void pathRoot() {
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List<FqName> path = new FqName("").path();
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Assert.assertEquals(1, path.size());
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Assert.assertEquals("", path.get(0).getFqName());
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}
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@Test
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public void pathLevel1() {
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List<FqName> path = new FqName("com").path();
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Assert.assertEquals(2, path.size());
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Assert.assertEquals("", path.get(0).getFqName());
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Assert.assertEquals("com", path.get(1).getFqName());
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Assert.assertEquals("com", path.get(1).shortName().getName());
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Assert.assertEquals("", path.get(1).parent().getFqName());
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}
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@Test
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public void pathLevel2() {
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List<FqName> path = new FqName("com.jetbrains").path();
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Assert.assertEquals(3, path.size());
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Assert.assertEquals("", path.get(0).getFqName());
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Assert.assertEquals("com", path.get(1).getFqName());
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Assert.assertEquals("com", path.get(1).shortName().getName());
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Assert.assertEquals("", path.get(1).parent().getFqName());
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Assert.assertEquals("com.jetbrains", path.get(2).getFqName());
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Assert.assertEquals("jetbrains", path.get(2).shortName().getName());
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Assert.assertEquals("com", path.get(2).parent().getFqName());
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}
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@Test
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public void pathLevel3() {
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List<FqName> path = new FqName("com.jetbrains.jet").path();
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Assert.assertEquals(4, path.size());
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Assert.assertEquals("", path.get(0).getFqName());
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Assert.assertEquals("com", path.get(1).getFqName());
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Assert.assertEquals("com", path.get(1).shortName().getName());
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Assert.assertEquals("", path.get(1).parent().getFqName());
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Assert.assertEquals("com.jetbrains", path.get(2).getFqName());
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Assert.assertEquals("jetbrains", path.get(2).shortName().getName());
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Assert.assertEquals("com", path.get(2).parent().getFqName());
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Assert.assertEquals("com.jetbrains.jet", path.get(3).getFqName());
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Assert.assertEquals("jet", path.get(3).shortName().getName());
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Assert.assertEquals("com.jetbrains", path.get(3).parent().getFqName());
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}
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@Test
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public void pathSegments() {
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Assert.assertEquals(Lists.newArrayList(), new FqName("").pathSegments());
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for (String name : new String[] { "com", "com.jetbrains", "com.jetbrains.jet" }) {
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List<Name> segments = new FqName(name).pathSegments();
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List<String> segmentsStrings = new ArrayList<String>();
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for (Name segment : segments) {
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segmentsStrings.add(segment.getName());
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}
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Assert.assertEquals(Arrays.asList(name.split("\\.")), segmentsStrings);
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}
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}
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@Test
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public void safeUnsafe() {
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FqName fqName = new FqName("com.yandex");
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Assert.assertSame(fqName, fqName.toUnsafe().toSafe());
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}
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@Test
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public void unsafeSafe() {
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FqNameUnsafe fqName = new FqNameUnsafe("ru.yandex");
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Assert.assertSame(fqName, fqName.toSafe().toUnsafe());
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}
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}
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