1 // Copyright 2015 The Chromium OS Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "bsdiff/extents.h" 6 7 #include <gtest/gtest.h> 8 #include <vector> 9 10 namespace bsdiff { 11 12 // ex_t comparator used for testing. 13 bool operator==(const struct ex_t& lhs, const struct ex_t& rhs) { 14 return lhs.off == rhs.off && lhs.len == rhs.len; 15 } 16 17 // PrintTo is used by gtest framework whenever it needs to print our type. 18 void PrintTo(const struct ex_t& extent, ::std::ostream* os) { 19 *os << extent.off << ":" << extent.len; 20 } 21 22 class ExtentsTest : public testing::Test { 23 protected: 24 std::vector<ex_t> extents_; 25 }; 26 27 TEST_F(ExtentsTest, CornerCasesHandledTest) { 28 EXPECT_TRUE(ParseExtentStr("", &extents_)); 29 EXPECT_TRUE(extents_.empty()); 30 } 31 32 TEST_F(ExtentsTest, SimpleCasesTest) { 33 EXPECT_TRUE(ParseExtentStr("10:20,30:40", &extents_)); 34 std::vector<ex_t> expected_values = {{10, 20}, {30, 40}}; 35 EXPECT_EQ(expected_values, extents_); 36 } 37 38 TEST_F(ExtentsTest, MalformedExtentsTest) { 39 std::vector<const char*> test_cases = { 40 ":", ",", "1,2", "1:", "1,", ":2", ",2", "1,2:3", "10:-1", "-2:10"}; 41 for (const char* test_case : test_cases) { 42 std::vector<ex_t> extents; 43 EXPECT_FALSE(ParseExtentStr(test_case, &extents)) << "while testing case \"" 44 << test_case << "\""; 45 EXPECT_EQ(std::vector<ex_t>(), extents); 46 } 47 } 48 49 TEST_F(ExtentsTest, NegativeValuesTest) { 50 // |-1| is used as a special case to read zeros for that extent. 51 EXPECT_TRUE(ParseExtentStr("10:20,-1:40,50:60", &extents_)); 52 std::vector<ex_t> expected_values = {{10, 20}, {-1, 40}, {50, 60}}; 53 EXPECT_EQ(expected_values, extents_); 54 } 55 56 } // namespace bsdiff 57
