| /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| ~ 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.sling.api.scripting; |
| |
| import java.util.AbstractMap; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.function.Supplier; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| public class LazyBindingsTest { |
| private static final String THE_QUESTION = "What is The Answer to the Ultimate Question of Life, The Universe, and Everything?"; |
| private static final int THE_ANSWER = 42; |
| |
| private Set<String> usedSuppliers; |
| private LazyBindings lazyBindings; |
| |
| private final LazyBindings.Supplier supplier = new LazyBindings.Supplier() { |
| @Override |
| public Object get() { |
| usedSuppliers.add(THE_QUESTION); |
| return THE_ANSWER; |
| } |
| }; |
| |
| @Before |
| public void setUp() { |
| usedSuppliers = new HashSet<>(); |
| final Map<String, LazyBindings.Supplier> supplierMap = new HashMap<>(); |
| supplierMap.put(THE_QUESTION, supplier); |
| lazyBindings = new LazyBindings(supplierMap); |
| } |
| |
| @After |
| public void tearDown() { |
| usedSuppliers = null; |
| lazyBindings = null; |
| } |
| |
| @Test |
| public void testGet() { |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| assertEquals(THE_ANSWER, lazyBindings.get(THE_QUESTION)); |
| assertTrue(usedSuppliers.contains(THE_QUESTION)); |
| assertNull(lazyBindings.get("none")); |
| } |
| |
| @Test |
| public void testRemove() { |
| lazyBindings.put("a", 0); |
| assertNull(lazyBindings.remove("null")); |
| assertEquals(0, lazyBindings.remove("a")); |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| assertEquals(THE_ANSWER, lazyBindings.remove(THE_QUESTION)); |
| assertTrue(usedSuppliers.contains(THE_QUESTION)); |
| } |
| |
| @Test |
| public void testPut() { |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| Object supplierProvidedValueReplacement = lazyBindings.put(THE_QUESTION, 43); |
| assertNull(supplierProvidedValueReplacement); |
| assertEquals(43, lazyBindings.get(THE_QUESTION)); |
| |
| lazyBindings.put("putSupplier", (LazyBindings.Supplier) () -> { |
| usedSuppliers.add("putSupplier"); |
| return "putSupplierValue"; |
| }); |
| assertFalse(usedSuppliers.contains("putSupplier")); |
| assertTrue(lazyBindings.containsKey("putSupplier")); |
| assertEquals("putSupplierValue", lazyBindings.get("putSupplier")); |
| assertTrue(usedSuppliers.contains("putSupplier")); |
| } |
| |
| @Test |
| public void testPutAll() { |
| Map<String, Object> toMerge = new HashMap<>(); |
| toMerge.put(THE_QUESTION, (LazyBindings.Supplier) () -> { |
| usedSuppliers.add(THE_QUESTION); |
| return THE_ANSWER; |
| }); |
| toMerge.put("b", 1); |
| toMerge.put("c", 2); |
| lazyBindings.put("a", 0); |
| lazyBindings.put("putSupplier", (LazyBindings.Supplier) () -> { |
| usedSuppliers.add("putSupplier"); |
| return "putSupplierValue"; |
| }); |
| lazyBindings.putAll(toMerge); |
| Set<String> keys = new HashSet<>(Arrays.asList(THE_QUESTION, "a", "b", "c", "putSupplier")); |
| assertEquals(keys, lazyBindings.keySet()); |
| assertEquals(THE_ANSWER, lazyBindings.get(THE_QUESTION)); |
| assertTrue(usedSuppliers.contains(THE_QUESTION)); |
| assertEquals("putSupplierValue", lazyBindings.get("putSupplier")); |
| assertTrue(usedSuppliers.contains("putSupplier")); |
| assertEquals(2, lazyBindings.get("c")); |
| } |
| |
| @Test |
| public void testClearSizeEmpty() { |
| lazyBindings.put("a", 0); |
| assertEquals(2, lazyBindings.size()); |
| assertFalse(lazyBindings.isEmpty()); |
| lazyBindings.clear(); |
| assertEquals(0, lazyBindings.size()); |
| assertTrue(lazyBindings.isEmpty()); |
| } |
| |
| @Test |
| public void testLazyContainsKey() { |
| lazyBindings.put("a", 0); |
| assertTrue(lazyBindings.containsKey(THE_QUESTION)); |
| assertTrue(lazyBindings.containsKey("a")); |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| } |
| |
| @Test |
| public void testContainsValue() { |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| assertFalse(lazyBindings.containsValue(THE_ANSWER)); |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| lazyBindings.put("a", 0); |
| assertTrue(lazyBindings.containsValue(0)); |
| } |
| |
| @Test |
| public void testEntrySet() { |
| lazyBindings.put("a", 0); |
| Set<Map.Entry<String, Object>> expectedEntrySet = new HashSet<>(); |
| expectedEntrySet.add(new AbstractMap.SimpleEntry<>("a", 0)); |
| expectedEntrySet.add(new AbstractMap.SimpleEntry<>(THE_QUESTION, supplier)); |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| assertEquals(expectedEntrySet, lazyBindings.entrySet()); |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| } |
| |
| @Test |
| public void testKeySet() { |
| lazyBindings.put("a", 0); |
| assertEquals(new HashSet<>(Arrays.asList(THE_QUESTION, "a")), lazyBindings.keySet()); |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| } |
| |
| @Test |
| public void testValues() { |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| Collection<Object> values = lazyBindings.values(); |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| assertEquals(0, values.size()); |
| lazyBindings.put("a", 0); |
| Set<Object> expectedValues = new HashSet<>(); |
| expectedValues.add(0); |
| assertEquals(expectedValues, new HashSet<>(lazyBindings.values())); |
| } |
| |
| @Test |
| public void testGetOrDefault() { |
| lazyBindings.put("a", 0); |
| assertEquals(0, lazyBindings.getOrDefault("a", 1)); |
| assertFalse(usedSuppliers.contains(THE_QUESTION)); |
| assertEquals(THE_ANSWER, lazyBindings.getOrDefault(THE_QUESTION, THE_ANSWER + 1)); |
| assertTrue(usedSuppliers.contains(THE_QUESTION)); |
| assertEquals(1, lazyBindings.getOrDefault("b", 1)); |
| } |
| |
| @Test |
| public void testThatNormalSuppliersAreNotUnwrapped() { |
| final String supplierName = "regularSupplier"; |
| Supplier<Object> regularSupplier = () -> { |
| usedSuppliers.add(supplierName); |
| return 0; |
| }; |
| lazyBindings.put(supplierName, regularSupplier); |
| assertEquals(regularSupplier, lazyBindings.get(supplierName)); |
| assertFalse(usedSuppliers.contains(supplierName)); |
| } |
| |
| } |