1 /* 2 * Copyright (C) 2014 Square, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.squareup.okhttp; 17 18 import java.util.concurrent.TimeUnit; 19 import org.junit.Test; 20 21 import static org.junit.Assert.assertEquals; 22 import static org.junit.Assert.assertFalse; 23 import static org.junit.Assert.assertNull; 24 import static org.junit.Assert.assertSame; 25 import static org.junit.Assert.assertTrue; 26 import static org.junit.Assert.fail; 27 28 public final class CacheControlTest { emptyBuilderIsEmpty()29 @Test public void emptyBuilderIsEmpty() throws Exception { 30 CacheControl cacheControl = new CacheControl.Builder().build(); 31 assertEquals("", cacheControl.toString()); 32 assertFalse(cacheControl.noCache()); 33 assertFalse(cacheControl.noStore()); 34 assertEquals(-1, cacheControl.maxAgeSeconds()); 35 assertEquals(-1, cacheControl.sMaxAgeSeconds()); 36 assertFalse(cacheControl.isPrivate()); 37 assertFalse(cacheControl.isPublic()); 38 assertFalse(cacheControl.mustRevalidate()); 39 assertEquals(-1, cacheControl.maxStaleSeconds()); 40 assertEquals(-1, cacheControl.minFreshSeconds()); 41 assertFalse(cacheControl.onlyIfCached()); 42 assertFalse(cacheControl.mustRevalidate()); 43 } 44 completeBuilder()45 @Test public void completeBuilder() throws Exception { 46 CacheControl cacheControl = new CacheControl.Builder() 47 .noCache() 48 .noStore() 49 .maxAge(1, TimeUnit.SECONDS) 50 .maxStale(2, TimeUnit.SECONDS) 51 .minFresh(3, TimeUnit.SECONDS) 52 .onlyIfCached() 53 .noTransform() 54 .build(); 55 assertEquals("no-cache, no-store, max-age=1, max-stale=2, min-fresh=3, only-if-cached, " 56 + "no-transform", cacheControl.toString()); 57 assertTrue(cacheControl.noCache()); 58 assertTrue(cacheControl.noStore()); 59 assertEquals(1, cacheControl.maxAgeSeconds()); 60 assertEquals(2, cacheControl.maxStaleSeconds()); 61 assertEquals(3, cacheControl.minFreshSeconds()); 62 assertTrue(cacheControl.onlyIfCached()); 63 64 // These members are accessible to response headers only. 65 assertEquals(-1, cacheControl.sMaxAgeSeconds()); 66 assertFalse(cacheControl.isPrivate()); 67 assertFalse(cacheControl.isPublic()); 68 assertFalse(cacheControl.mustRevalidate()); 69 } 70 parseEmpty()71 @Test public void parseEmpty() throws Exception { 72 CacheControl cacheControl = CacheControl.parse( 73 new Headers.Builder().set("Cache-Control", "").build()); 74 assertEquals("", cacheControl.toString()); 75 assertFalse(cacheControl.noCache()); 76 assertFalse(cacheControl.noStore()); 77 assertEquals(-1, cacheControl.maxAgeSeconds()); 78 assertEquals(-1, cacheControl.sMaxAgeSeconds()); 79 assertFalse(cacheControl.isPublic()); 80 assertFalse(cacheControl.mustRevalidate()); 81 assertEquals(-1, cacheControl.maxStaleSeconds()); 82 assertEquals(-1, cacheControl.minFreshSeconds()); 83 assertFalse(cacheControl.onlyIfCached()); 84 assertFalse(cacheControl.mustRevalidate()); 85 } 86 parse()87 @Test public void parse() throws Exception { 88 String header = "no-cache, no-store, max-age=1, s-maxage=2, private, public, must-revalidate, " 89 + "max-stale=3, min-fresh=4, only-if-cached, no-transform"; 90 CacheControl cacheControl = CacheControl.parse(new Headers.Builder() 91 .set("Cache-Control", header) 92 .build()); 93 assertTrue(cacheControl.noCache()); 94 assertTrue(cacheControl.noStore()); 95 assertEquals(1, cacheControl.maxAgeSeconds()); 96 assertEquals(2, cacheControl.sMaxAgeSeconds()); 97 assertTrue(cacheControl.isPrivate()); 98 assertTrue(cacheControl.isPublic()); 99 assertTrue(cacheControl.mustRevalidate()); 100 assertEquals(3, cacheControl.maxStaleSeconds()); 101 assertEquals(4, cacheControl.minFreshSeconds()); 102 assertTrue(cacheControl.onlyIfCached()); 103 assertTrue(cacheControl.noTransform()); 104 assertEquals(header, cacheControl.toString()); 105 } 106 parseIgnoreCacheControlExtensions()107 @Test public void parseIgnoreCacheControlExtensions() throws Exception { 108 // Example from http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.6 109 String header = "private, community=\"UCI\""; 110 CacheControl cacheControl = CacheControl.parse(new Headers.Builder() 111 .set("Cache-Control", header) 112 .build()); 113 assertFalse(cacheControl.noCache()); 114 assertFalse(cacheControl.noStore()); 115 assertEquals(-1, cacheControl.maxAgeSeconds()); 116 assertEquals(-1, cacheControl.sMaxAgeSeconds()); 117 assertTrue(cacheControl.isPrivate()); 118 assertFalse(cacheControl.isPublic()); 119 assertFalse(cacheControl.mustRevalidate()); 120 assertEquals(-1, cacheControl.maxStaleSeconds()); 121 assertEquals(-1, cacheControl.minFreshSeconds()); 122 assertFalse(cacheControl.onlyIfCached()); 123 assertFalse(cacheControl.noTransform()); 124 assertEquals(header, cacheControl.toString()); 125 } 126 parseCacheControlAndPragmaAreCombined()127 @Test public void parseCacheControlAndPragmaAreCombined() { 128 Headers headers = 129 Headers.of("Cache-Control", "max-age=12", "Pragma", "must-revalidate", "Pragma", "public"); 130 CacheControl cacheControl = CacheControl.parse(headers); 131 assertEquals("max-age=12, public, must-revalidate", cacheControl.toString()); 132 } 133 134 @SuppressWarnings("RedundantStringConstructorCall") // Testing instance equality. parseCacheControlHeaderValueIsRetained()135 @Test public void parseCacheControlHeaderValueIsRetained() { 136 String value = new String("max-age=12"); 137 Headers headers = Headers.of("Cache-Control", value); 138 CacheControl cacheControl = CacheControl.parse(headers); 139 assertSame(value, cacheControl.toString()); 140 } 141 parseCacheControlHeaderValueInvalidatedByPragma()142 @Test public void parseCacheControlHeaderValueInvalidatedByPragma() { 143 Headers headers = Headers.of("Cache-Control", "max-age=12", "Pragma", "must-revalidate"); 144 CacheControl cacheControl = CacheControl.parse(headers); 145 assertNull(cacheControl.headerValue); 146 } 147 parseCacheControlHeaderValueInvalidatedByTwoValues()148 @Test public void parseCacheControlHeaderValueInvalidatedByTwoValues() { 149 Headers headers = Headers.of("Cache-Control", "max-age=12", "Cache-Control", "must-revalidate"); 150 CacheControl cacheControl = CacheControl.parse(headers); 151 assertNull(cacheControl.headerValue); 152 } 153 parsePragmaHeaderValueIsNotRetained()154 @Test public void parsePragmaHeaderValueIsNotRetained() { 155 Headers headers = Headers.of("Pragma", "must-revalidate"); 156 CacheControl cacheControl = CacheControl.parse(headers); 157 assertNull(cacheControl.headerValue); 158 } 159 computedHeaderValueIsCached()160 @Test public void computedHeaderValueIsCached() { 161 CacheControl cacheControl = new CacheControl.Builder() 162 .maxAge(2, TimeUnit.DAYS) 163 .build(); 164 assertNull(cacheControl.headerValue); 165 assertEquals("max-age=172800", cacheControl.toString()); 166 assertEquals("max-age=172800", cacheControl.headerValue); 167 cacheControl.headerValue = "Hi"; 168 assertEquals("Hi", cacheControl.toString()); 169 } 170 timeDurationTruncatedToMaxValue()171 @Test public void timeDurationTruncatedToMaxValue() throws Exception { 172 CacheControl cacheControl = new CacheControl.Builder() 173 .maxAge(365 * 100, TimeUnit.DAYS) // Longer than Integer.MAX_VALUE seconds. 174 .build(); 175 assertEquals(Integer.MAX_VALUE, cacheControl.maxAgeSeconds()); 176 } 177 secondsMustBeNonNegative()178 @Test public void secondsMustBeNonNegative() throws Exception { 179 CacheControl.Builder builder = new CacheControl.Builder(); 180 try { 181 builder.maxAge(-1, TimeUnit.SECONDS); 182 fail(); 183 } catch (IllegalArgumentException expected) { 184 } 185 } 186 timePrecisionIsTruncatedToSeconds()187 @Test public void timePrecisionIsTruncatedToSeconds() throws Exception { 188 CacheControl cacheControl = new CacheControl.Builder() 189 .maxAge(4999, TimeUnit.MILLISECONDS) 190 .build(); 191 assertEquals(4, cacheControl.maxAgeSeconds()); 192 } 193 } 194