1 /* 2 * Copyright (C) 2016 The Android Open Source Project 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.android.providers.contacts.sqlite; 17 18 import android.test.AndroidTestCase; 19 import android.test.MoreAsserts; 20 21 import com.android.providers.contacts.sqlite.SqlChecker.InvalidSqlException; 22 23 import java.util.ArrayList; 24 import java.util.Arrays; 25 import java.util.List; 26 27 public class SqlCheckerTest extends AndroidTestCase { 28 private ArrayList<String> getTokens(String sql) { 29 final ArrayList<String> tokens = new ArrayList<>(); 30 31 SqlChecker.findTokens(sql, SqlChecker.OPTION_NONE, token -> tokens.add(token)); 32 33 return tokens; 34 } 35 36 private void checkTokens(String sql, String spaceSeparatedExpectedTokens) { 37 final List<String> expected = spaceSeparatedExpectedTokens == null 38 ? new ArrayList<>() 39 : Arrays.asList(spaceSeparatedExpectedTokens.split(" +")); 40 41 assertEquals(expected, getTokens(sql)); 42 } 43 44 private void assertInvalidSql(String sql, String message) { 45 try { 46 getTokens(sql); 47 fail("Didn't throw InvalidSqlException"); 48 } catch (InvalidSqlException e) { 49 MoreAsserts.assertContainsRegex(message, e.getMessage()); 50 } 51 } 52 53 public void testWhitespaces() { 54 checkTokens(" select \t\r\n a\n\n ", "select a"); 55 checkTokens("a b", "a b"); 56 } 57 58 public void testComment() { 59 checkTokens("--\n", null); 60 checkTokens("a--\n", "a"); 61 checkTokens("a--abcdef\n", "a"); 62 checkTokens("a--abcdef\nx", "a x"); 63 checkTokens("a--\nx", "a x"); 64 assertInvalidSql("a--abcdef", "Unterminated comment"); 65 assertInvalidSql("a--abcdef\ndef--", "Unterminated comment"); 66 67 checkTokens("/**/", null); 68 assertInvalidSql("/*", "Unterminated comment"); 69 assertInvalidSql("/*/", "Unterminated comment"); 70 assertInvalidSql("/*\n* /*a", "Unterminated comment"); 71 checkTokens("a/**/", "a"); 72 checkTokens("/**/b", "b"); 73 checkTokens("a/**/b", "a b"); 74 checkTokens("a/* -- \n* /* **/b", "a b"); 75 } 76 77 public void testStrings() { 78 assertInvalidSql("'", "Unterminated quote"); 79 assertInvalidSql("a'", "Unterminated quote"); 80 assertInvalidSql("a'''", "Unterminated quote"); 81 assertInvalidSql("a''' ", "Unterminated quote"); 82 checkTokens("''", null); 83 checkTokens("''''", null); 84 checkTokens("a''''b", "a b"); 85 checkTokens("a' '' 'b", "a b"); 86 checkTokens("'abc'", null); 87 checkTokens("'abc\ndef'", null); 88 checkTokens("a'abc\ndef'", "a"); 89 checkTokens("'abc\ndef'b", "b"); 90 checkTokens("a'abc\ndef'b", "a b"); 91 checkTokens("a'''abc\nd''ef'''b", "a b"); 92 } 93 94 public void testDoubleQuotes() { 95 assertInvalidSql("\"", "Unterminated quote"); 96 assertInvalidSql("a\"", "Unterminated quote"); 97 assertInvalidSql("a\"\"\"", "Unterminated quote"); 98 assertInvalidSql("a\"\"\" ", "Unterminated quote"); 99 checkTokens("\"\"", ""); 100 checkTokens("\"\"\"\"", "\""); 101 checkTokens("a\"\"\"\"b", "a \" b"); 102 checkTokens("a\"\t\"\"\t\"b", "a \t\"\t b"); 103 checkTokens("\"abc\"", "abc"); 104 checkTokens("\"abc\ndef\"", "abc\ndef"); 105 checkTokens("a\"abc\ndef\"", "a abc\ndef"); 106 checkTokens("\"abc\ndef\"b", "abc\ndef b"); 107 checkTokens("a\"abc\ndef\"b", "a abc\ndef b"); 108 checkTokens("a\"\"\"abc\nd\"\"ef\"\"\"b", "a \"abc\nd\"ef\" b"); 109 } 110 111 public void testBackQuotes() { 112 assertInvalidSql("`", "Unterminated quote"); 113 assertInvalidSql("a`", "Unterminated quote"); 114 assertInvalidSql("a```", "Unterminated quote"); 115 assertInvalidSql("a``` ", "Unterminated quote"); 116 checkTokens("``", ""); 117 checkTokens("````", "`"); 118 checkTokens("a````b", "a ` b"); 119 checkTokens("a`\t``\t`b", "a \t`\t b"); 120 checkTokens("`abc`", "abc"); 121 checkTokens("`abc\ndef`", "abc\ndef"); 122 checkTokens("a`abc\ndef`", "a abc\ndef"); 123 checkTokens("`abc\ndef`b", "abc\ndef b"); 124 checkTokens("a`abc\ndef`b", "a abc\ndef b"); 125 checkTokens("a```abc\nd``ef```b", "a `abc\nd`ef` b"); 126 } 127 128 public void testBrackets() { 129 assertInvalidSql("[", "Unterminated quote"); 130 assertInvalidSql("a[", "Unterminated quote"); 131 assertInvalidSql("a[ ", "Unterminated quote"); 132 assertInvalidSql("a[[ ", "Unterminated quote"); 133 checkTokens("[]", ""); 134 checkTokens("[[]", "["); 135 checkTokens("a[[]b", "a [ b"); 136 checkTokens("a[\t[\t]b", "a \t[\t b"); 137 checkTokens("[abc]", "abc"); 138 checkTokens("[abc\ndef]", "abc\ndef"); 139 checkTokens("a[abc\ndef]", "a abc\ndef"); 140 checkTokens("[abc\ndef]b", "abc\ndef b"); 141 checkTokens("a[abc\ndef]b", "a abc\ndef b"); 142 checkTokens("a[[abc\nd[ef[]b", "a [abc\nd[ef[ b"); 143 } 144 145 public void testSemicolons() { 146 assertInvalidSql(";", "Semicolon is not allowed"); 147 assertInvalidSql(" ;", "Semicolon is not allowed"); 148 assertInvalidSql("; ", "Semicolon is not allowed"); 149 assertInvalidSql("-;-", "Semicolon is not allowed"); 150 checkTokens("--;\n", null); 151 checkTokens("/*;*/", null); 152 checkTokens("';'", null); 153 checkTokens("[;]", ";"); 154 checkTokens("`;`", ";"); 155 } 156 157 public void testTokens() { 158 checkTokens("a,abc,a00b,_1,_123,abcdef", "a abc a00b _1 _123 abcdef"); 159 checkTokens("a--\nabc/**/a00b''_1'''ABC'''`_123`abc[d]\"e\"f", 160 "a abc a00b _1 _123 abc d e f"); 161 } 162 163 private SqlChecker getChecker(String... tokens) { 164 return new SqlChecker(Arrays.asList(tokens)); 165 } 166 167 private void checkEnsureNoInvalidTokens(boolean ok, String sql, String... tokens) { 168 if (ok) { 169 getChecker(tokens).ensureNoInvalidTokens(sql); 170 } else { 171 try { 172 getChecker(tokens).ensureNoInvalidTokens(sql); 173 fail("Should have thrown"); 174 } catch (InvalidSqlException e) { 175 // okay 176 } 177 } 178 } 179 180 public void testEnsureNoInvalidTokens() { 181 checkEnsureNoInvalidTokens(true, "a b c", "Select"); 182 183 checkEnsureNoInvalidTokens(false, "a b ;c", "Select"); 184 checkEnsureNoInvalidTokens(false, "a b seLeCt", "Select"); 185 186 checkEnsureNoInvalidTokens(true, "a b select", "x"); 187 188 checkEnsureNoInvalidTokens(false, "A b select", "x", "a"); 189 checkEnsureNoInvalidTokens(false, "A b select", "a", "x"); 190 191 checkEnsureNoInvalidTokens(true, "a /*select*/ b c ", "select"); 192 checkEnsureNoInvalidTokens(true, "a 'select' b c ", "select"); 193 194 checkEnsureNoInvalidTokens(true, "a b ';' c"); 195 checkEnsureNoInvalidTokens(true, "a b /*;*/ c"); 196 197 checkEnsureNoInvalidTokens(false, "a b x_ c"); 198 checkEnsureNoInvalidTokens(false, "a b [X_OK] c"); 199 checkEnsureNoInvalidTokens(true, "a b 'x_' c"); 200 checkEnsureNoInvalidTokens(true, "a b /*x_*/ c"); 201 } 202 203 private void checkEnsureSingleTokenOnly(boolean ok, String sql, String... tokens) { 204 if (ok) { 205 getChecker(tokens).ensureSingleTokenOnly(sql); 206 } else { 207 try { 208 getChecker(tokens).ensureSingleTokenOnly(sql); 209 fail("Should have thrown"); 210 } catch (InvalidSqlException e) { 211 // okay 212 } 213 } 214 } 215 216 public void testEnsureSingleTokenOnly() { 217 checkEnsureSingleTokenOnly(true, "a", "select"); 218 checkEnsureSingleTokenOnly(true, "ab", "select"); 219 checkEnsureSingleTokenOnly(true, "selec", "select"); 220 checkEnsureSingleTokenOnly(true, "selectx", "select"); 221 222 checkEnsureSingleTokenOnly(false, "select", "select"); 223 checkEnsureSingleTokenOnly(false, "select", "a", "select"); 224 checkEnsureSingleTokenOnly(false, "select", "select", "b"); 225 checkEnsureSingleTokenOnly(false, "select", "a", "select", "b"); 226 227 228 checkEnsureSingleTokenOnly(true, "`a`", "select"); 229 checkEnsureSingleTokenOnly(true, "[a]", "select"); 230 checkEnsureSingleTokenOnly(true, "\"a\"", "select"); 231 232 checkEnsureSingleTokenOnly(false, "'a'", "select"); 233 234 checkEnsureSingleTokenOnly(false, "b`a`", "select"); 235 checkEnsureSingleTokenOnly(false, "b[a]", "select"); 236 checkEnsureSingleTokenOnly(false, "b\"a\"", "select"); 237 checkEnsureSingleTokenOnly(false, "b'a'", "select"); 238 239 checkEnsureSingleTokenOnly(false, "`a`c", "select"); 240 checkEnsureSingleTokenOnly(false, "[a]c", "select"); 241 checkEnsureSingleTokenOnly(false, "\"a\"c", "select"); 242 checkEnsureSingleTokenOnly(false, "'a'c", "select"); 243 244 checkEnsureSingleTokenOnly(false, "", "select"); 245 checkEnsureSingleTokenOnly(false, "--", "select"); 246 checkEnsureSingleTokenOnly(false, "/**/", "select"); 247 checkEnsureSingleTokenOnly(false, " \n", "select"); 248 checkEnsureSingleTokenOnly(false, "a--", "select"); 249 checkEnsureSingleTokenOnly(false, "a/**/", "select"); 250 checkEnsureSingleTokenOnly(false, "a \n", "select"); 251 } 252 } 253
