[sql] Framework for allowing tests to handle errors.

sql/connection_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "sql/connection.h"
 #include "sql/meta_table.h"
 #include "sql/statement.h"
+#include "sql/test/scoped_error_ignorer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/sqlite/sqlite3.h"
 
 class SQLConnectionTest : public testing::Test {
  public:
   SQLConnectionTest() {}
 
   virtual void SetUp() {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     ASSERT_TRUE(db_.Open(db_path()));
@@ skipping 108 matching lines @@
 
 TEST_F(SQLConnectionTest, Rollback) {
   ASSERT_TRUE(db().BeginTransaction());
   ASSERT_TRUE(db().BeginTransaction());
   EXPECT_EQ(2, db().transaction_nesting());
   db().RollbackTransaction();
   EXPECT_FALSE(db().CommitTransaction());
   EXPECT_TRUE(db().BeginTransaction());
 }
 
+// Test the scoped error ignorer by attempting to insert a duplicate
+// value into an index.
+TEST_F(SQLConnectionTest, ScopedIgnoreError) {
+  const char* kCreateSql = "CREATE TABLE foo (id INTEGER UNIQUE)";
+  ASSERT_TRUE(db().Execute(kCreateSql));
+  ASSERT_TRUE(db().Execute("INSERT INTO foo (id) VALUES (12)"));
+
+  sql::ScopedErrorIgnorer ignore_errors;
+  ignore_errors.IgnoreError(SQLITE_CONSTRAINT);
+  ASSERT_FALSE(db().Execute("INSERT INTO foo (id) VALUES (12)"));
+  ASSERT_TRUE(ignore_errors.CheckIgnoredErrors());
+}
+
 // Test that sql::Connection::Raze() results in a database without the
 // tables from the original database.
 TEST_F(SQLConnectionTest, Raze) {
   const char* kCreateSql = "CREATE TABLE foo (id INTEGER PRIMARY KEY, value)";
   ASSERT_TRUE(db().Execute(kCreateSql));
   ASSERT_TRUE(db().Execute("INSERT INTO foo (value) VALUES (12)"));
 
   int pragma_auto_vacuum = 0;
   {
     sql::Statement s(db().GetUniqueStatement("PRAGMA auto_vacuum"));
@@ skipping 241 matching lines @@
 
   sql::MetaTable meta_table;
   // Below call needs a temporary directory in sqlite3
   // On Android, it can pass only when the temporary directory is set.
   // Otherwise, sqlite3 doesn't find the correct directory to store
   // temporary files and will report the error 'unable to open
   // database file'.
   ASSERT_TRUE(meta_table.Init(&db(), 4, 4));
 }
 #endif