| // Copyright 2018 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include"sql/statement_id.h" |
| |
| #include<string> |
| |
| #include"testing/gtest/include/gtest/gtest.h" |
| |
| namespace sql{ |
| |
| namespace{ |
| |
| TEST(SqlStatementIdComparisonTest,FilenameComparedByValue){ |
| std::string filename1="foo"; |
| std::string filename2(filename1); |
| EXPECT_NE(filename1.data(), filename2.data()); |
| |
| StatementID id1({filename1,123}); |
| StatementID id2({filename2,123}); |
| |
| // Despite being constructed from distinct pointers, the two `StatementID`s |
| // compare equal. |
| EXPECT_EQ(id1, id2); |
| } |
| |
| // If a caller inadvertently uses `SQL_FROM_HERE` twice on the same line, they |
| // might be surprised that they get two `StatementID`s that compare equal. This |
| // might be solvable with the `__COUNTER__` macro. |
| TEST(SqlStatementIdComparisonTest,MacrosOnSameLineCompareEqual){ |
| // This test documents a sharp edge. Ideally, these IDs would *not* be equal. |
| EXPECT_EQ(SQL_FROM_HERE, SQL_FROM_HERE); |
| } |
| |
| classSqlStatementIdTest:public testing::Test{ |
| protected: |
| // This test takes advantage of the fact that statement IDs are logically |
| // (file, line) tuples, and are compared lexicographically. |
| SqlStatementIdTest() |
| : id1_(SQL_FROM_HERE),// file statement_id_unittest.cc, line L |
| id2_(SQL_FROM_HERE),// file statement_id_unittest.cc, line L+1 |
| id3_(SQL_FROM_HERE){// file statement_id_unittest.cc, line L+2 |
| } |
| |
| StatementID id1_; |
| StatementID id2_; |
| StatementID id3_; |
| }; |
| |
| TEST_F(SqlStatementIdTest,LessThan){ |
| EXPECT_FALSE(id1_< id1_); |
| EXPECT_FALSE(id2_< id2_); |
| EXPECT_FALSE(id3_< id3_); |
| |
| EXPECT_LT(id1_, id2_); |
| EXPECT_LT(id1_, id3_); |
| EXPECT_LT(id2_, id3_); |
| |
| EXPECT_FALSE(id2_< id1_); |
| EXPECT_FALSE(id3_< id1_); |
| EXPECT_FALSE(id3_< id2_); |
| } |
| |
| TEST_F(SqlStatementIdTest,CopyConstructor){ |
| StatementID id2_copy= id2_; |
| |
| EXPECT_FALSE(id2_copy< id2_); |
| EXPECT_FALSE(id2_< id2_copy); |
| |
| EXPECT_LT(id1_, id2_copy); |
| EXPECT_LT(id2_copy, id3_); |
| } |
| |
| TEST_F(SqlStatementIdTest,CopyAssignment){ |
| StatementID id2_copy(SQL_FROM_HERE); |
| |
| // The new ID should be different from ID2. |
| EXPECT_TRUE(id2_copy< id2_|| id2_< id2_copy); |
| |
| id2_copy= id2_; |
| |
| EXPECT_FALSE(id2_copy< id2_); |
| EXPECT_FALSE(id2_< id2_copy); |
| |
| EXPECT_LT(id1_, id2_copy); |
| EXPECT_LT(id2_copy, id3_); |
| } |
| |
| }// namespace |
| |
| }// namespace sql |
