diff options
Diffstat (limited to 'core/tests/coretests/src/android/database/sqlite/SQLiteTokenizerTest.java')
| -rw-r--r-- | core/tests/coretests/src/android/database/sqlite/SQLiteTokenizerTest.java | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/core/tests/coretests/src/android/database/sqlite/SQLiteTokenizerTest.java b/core/tests/coretests/src/android/database/sqlite/SQLiteTokenizerTest.java new file mode 100644 index 00000000000..a9d14828926 --- /dev/null +++ b/core/tests/coretests/src/android/database/sqlite/SQLiteTokenizerTest.java @@ -0,0 +1,173 @@ +/* + * Copyright (C) 2019 The Android Open Source Project + * + * Licensed 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 android.database.sqlite; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertTrue; +import static org.junit.Assert.fail; + +import androidx.test.runner.AndroidJUnit4; + +import org.junit.Test; +import org.junit.runner.RunWith; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; + +@RunWith(AndroidJUnit4.class) +public class SQLiteTokenizerTest { + private List<String> getTokens(String sql) { + return SQLiteTokenizer.tokenize(sql, SQLiteTokenizer.OPTION_NONE); + } + + private void checkTokens(String sql, String spaceSeparatedExpectedTokens) { + final List<String> expected = spaceSeparatedExpectedTokens == null + ? new ArrayList<>() + : Arrays.asList(spaceSeparatedExpectedTokens.split(" +")); + + assertEquals(expected, getTokens(sql)); + } + + private void assertInvalidSql(String sql, String message) { + try { + getTokens(sql); + fail("Didn't throw InvalidSqlException"); + } catch (IllegalArgumentException e) { + assertTrue("Expected " + e.getMessage() + " to contain " + message, + e.getMessage().contains(message)); + } + } + + @Test + public void testWhitespaces() { + checkTokens(" select \t\r\n a\n\n ", "select a"); + checkTokens("a b", "a b"); + } + + @Test + public void testComment() { + checkTokens("--\n", null); + checkTokens("a--\n", "a"); + checkTokens("a--abcdef\n", "a"); + checkTokens("a--abcdef\nx", "a x"); + checkTokens("a--\nx", "a x"); + assertInvalidSql("a--abcdef", "Unterminated comment"); + assertInvalidSql("a--abcdef\ndef--", "Unterminated comment"); + + checkTokens("/**/", null); + assertInvalidSql("/*", "Unterminated comment"); + assertInvalidSql("/*/", "Unterminated comment"); + assertInvalidSql("/*\n* /*a", "Unterminated comment"); + checkTokens("a/**/", "a"); + checkTokens("/**/b", "b"); + checkTokens("a/**/b", "a b"); + checkTokens("a/* -- \n* /* **/b", "a b"); + } + + @Test + public void testStrings() { + assertInvalidSql("'", "Unterminated quote"); + assertInvalidSql("a'", "Unterminated quote"); + assertInvalidSql("a'''", "Unterminated quote"); + assertInvalidSql("a''' ", "Unterminated quote"); + checkTokens("''", null); + checkTokens("''''", null); + checkTokens("a''''b", "a b"); + checkTokens("a' '' 'b", "a b"); + checkTokens("'abc'", null); + checkTokens("'abc\ndef'", null); + checkTokens("a'abc\ndef'", "a"); + checkTokens("'abc\ndef'b", "b"); + checkTokens("a'abc\ndef'b", "a b"); + checkTokens("a'''abc\nd''ef'''b", "a b"); + } + + @Test + public void testDoubleQuotes() { + assertInvalidSql("\"", "Unterminated quote"); + assertInvalidSql("a\"", "Unterminated quote"); + assertInvalidSql("a\"\"\"", "Unterminated quote"); + assertInvalidSql("a\"\"\" ", "Unterminated quote"); + checkTokens("\"\"", ""); + checkTokens("\"\"\"\"", "\""); + checkTokens("a\"\"\"\"b", "a \" b"); + checkTokens("a\"\t\"\"\t\"b", "a \t\"\t b"); + checkTokens("\"abc\"", "abc"); + checkTokens("\"abc\ndef\"", "abc\ndef"); + checkTokens("a\"abc\ndef\"", "a abc\ndef"); + checkTokens("\"abc\ndef\"b", "abc\ndef b"); + checkTokens("a\"abc\ndef\"b", "a abc\ndef b"); + checkTokens("a\"\"\"abc\nd\"\"ef\"\"\"b", "a \"abc\nd\"ef\" b"); + } + + @Test + public void testBackQuotes() { + assertInvalidSql("`", "Unterminated quote"); + assertInvalidSql("a`", "Unterminated quote"); + assertInvalidSql("a```", "Unterminated quote"); + assertInvalidSql("a``` ", "Unterminated quote"); + checkTokens("``", ""); + checkTokens("````", "`"); + checkTokens("a````b", "a ` b"); + checkTokens("a`\t``\t`b", "a \t`\t b"); + checkTokens("`abc`", "abc"); + checkTokens("`abc\ndef`", "abc\ndef"); + checkTokens("a`abc\ndef`", "a abc\ndef"); + checkTokens("`abc\ndef`b", "abc\ndef b"); + checkTokens("a`abc\ndef`b", "a abc\ndef b"); + checkTokens("a```abc\nd``ef```b", "a `abc\nd`ef` b"); + } + + @Test + public void testBrackets() { + assertInvalidSql("[", "Unterminated quote"); + assertInvalidSql("a[", "Unterminated quote"); + assertInvalidSql("a[ ", "Unterminated quote"); + assertInvalidSql("a[[ ", "Unterminated quote"); + checkTokens("[]", ""); + checkTokens("[[]", "["); + checkTokens("a[[]b", "a [ b"); + checkTokens("a[\t[\t]b", "a \t[\t b"); + checkTokens("[abc]", "abc"); + checkTokens("[abc\ndef]", "abc\ndef"); + checkTokens("a[abc\ndef]", "a abc\ndef"); + checkTokens("[abc\ndef]b", "abc\ndef b"); + checkTokens("a[abc\ndef]b", "a abc\ndef b"); + checkTokens("a[[abc\nd[ef[]b", "a [abc\nd[ef[ b"); + } + + @Test + public void testSemicolons() { + assertInvalidSql(";", "Semicolon is not allowed"); + assertInvalidSql(" ;", "Semicolon is not allowed"); + assertInvalidSql("; ", "Semicolon is not allowed"); + assertInvalidSql("-;-", "Semicolon is not allowed"); + checkTokens("--;\n", null); + checkTokens("/*;*/", null); + checkTokens("';'", null); + checkTokens("[;]", ";"); + checkTokens("`;`", ";"); + } + + @Test + public void testTokens() { + checkTokens("a,abc,a00b,_1,_123,abcdef", "a abc a00b _1 _123 abcdef"); + checkTokens("a--\nabc/**/a00b''_1'''ABC'''`_123`abc[d]\"e\"f", + "a abc a00b _1 _123 abc d e f"); + } +} |