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Diffstat (limited to 'externals/breakpad/src/common/byte_cursor_unittest.cc')
| -rw-r--r-- | externals/breakpad/src/common/byte_cursor_unittest.cc | 779 |
1 files changed, 779 insertions, 0 deletions
diff --git a/externals/breakpad/src/common/byte_cursor_unittest.cc b/externals/breakpad/src/common/byte_cursor_unittest.cc new file mode 100644 index 0000000000..41180ca2e2 --- /dev/null +++ b/externals/breakpad/src/common/byte_cursor_unittest.cc @@ -0,0 +1,779 @@ +// Copyright 2010 Google LLC +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google LLC nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> + +// byte_cursor_unittest.cc: Unit tests for google_breakpad::ByteBuffer +// and google_breakpad::ByteCursor. + +#ifdef HAVE_CONFIG_H +#include <config.h> // Must come first +#endif + +#include <string> + +#include <string.h> + +#include "breakpad_googletest_includes.h" +#include "common/byte_cursor.h" +#include "common/using_std_string.h" + +using google_breakpad::ByteBuffer; +using google_breakpad::ByteCursor; + +TEST(Buffer, SizeOfNothing) { + uint8_t data[1]; + ByteBuffer buffer(data, 0); + EXPECT_EQ(0U, buffer.Size()); +} + +TEST(Buffer, SizeOfSomething) { + uint8_t data[10]; + ByteBuffer buffer(data, sizeof(data)); + EXPECT_EQ(10U, buffer.Size()); +} + +TEST(Extent, AvailableEmpty) { + uint8_t data[1]; + ByteBuffer buffer(data, 0); + ByteCursor cursor(&buffer); + EXPECT_EQ(0U, cursor.Available()); +} + +TEST(Extent, AtEndEmpty) { + uint8_t data[1]; + ByteBuffer buffer(data, 0); + ByteCursor cursor(&buffer); + EXPECT_TRUE(cursor.AtEnd()); +} + +TEST(Extent, AsBoolEmpty) { + uint8_t data[1]; + ByteBuffer buffer(data, 0); + ByteCursor cursor(&buffer); + EXPECT_TRUE(cursor); +} + +TEST(Extent, AvailableSome) { + uint8_t data[10]; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + EXPECT_EQ(10U, cursor.Available()); +} + +TEST(Extent, AtEndSome) { + uint8_t data[10]; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + EXPECT_FALSE(cursor.AtEnd()); + EXPECT_TRUE(cursor.Skip(sizeof(data)).AtEnd()); +} + +TEST(Extent, AsBoolSome) { + uint8_t data[10]; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + EXPECT_TRUE(cursor); + EXPECT_TRUE(cursor.Skip(sizeof(data))); + EXPECT_FALSE(cursor.Skip(1)); +} + +TEST(Extent, Cursor) { + uint8_t data[] = { 0xf7, + 0x9f, 0xbe, + 0x67, 0xfb, 0xd3, 0x58, + 0x6f, 0x36, 0xde, 0xd1, + 0x2a, 0x2a, 0x2a }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + uint8_t a; + uint16_t b; + uint32_t c; + uint32_t d; + uint8_t stars[3]; + + EXPECT_EQ(data + 0U, cursor.here()); + + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(data + 1U, cursor.here()); + + EXPECT_TRUE(cursor >> b); + EXPECT_EQ(data + 3U, cursor.here()); + + EXPECT_TRUE(cursor >> c); + EXPECT_EQ(data + 7U, cursor.here()); + + EXPECT_TRUE(cursor.Skip(4)); + EXPECT_EQ(data + 11U, cursor.here()); + + EXPECT_TRUE(cursor.Read(stars, 3)); + EXPECT_EQ(data + 14U, cursor.here()); + + EXPECT_FALSE(cursor >> d); + EXPECT_EQ(data + 14U, cursor.here()); +} + +TEST(Extent, SetOffset) { + uint8_t data[] = { 0x5c, 0x79, 0x8c, 0xd5 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + uint8_t a, b, c, d, e; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(0x5cU, a); + EXPECT_EQ(data + 1U, cursor.here()); + EXPECT_TRUE(((cursor >> b).set_here(data + 3) >> c).set_here(data + 1) + >> d >> e); + EXPECT_EQ(0x79U, b); + EXPECT_EQ(0xd5U, c); + EXPECT_EQ(0x79U, d); + EXPECT_EQ(0x8cU, e); + EXPECT_EQ(data + 3U, cursor.here()); +} + +TEST(BigEndian, Signed1) { + uint8_t data[] = { 0x00, 0x7f, 0x80, 0xff }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + int a, b, c, d, e; + ASSERT_TRUE(cursor + .Read(1, true, &a) + .Read(1, true, &b) + .Read(1, true, &c) + .Read(1, true, &d)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7f, b); + EXPECT_EQ(-0x80, c); + EXPECT_EQ(-1, d); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(1, true, &e)); +} + +TEST(BigEndian, Signed2) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x80, 0x7f, 0xff, + 0x80, 0x00, 0x80, 0x80, 0xff, 0xff, + 0x39, 0xf1, 0x8a, 0xbc, 0x5a, 0xec }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, true); + int a, b, c, d, e, f, g, h, i, j; + ASSERT_TRUE(cursor + .Read(2, true, &a) + .Read(2, true, &b) + .Read(2, true, &c) + .Read(2, true, &d) + .Read(2, true, &e) + .Read(2, true, &f) + .Read(2, true, &g) + .Read(2, true, &h) + .Read(2, true, &i)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x80, b); + EXPECT_EQ(0x7fff, c); + EXPECT_EQ(-0x8000, d); + EXPECT_EQ(-0x7f80, e); + EXPECT_EQ(-1, f); + EXPECT_EQ(0x39f1, g); + EXPECT_EQ(-0x7544, h); + EXPECT_EQ(0x5aec, i); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(2, true, &j)); +} + +TEST(BigEndian, Signed4) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xff, 0xff, 0xff, + 0x80, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, + 0xb6, 0xb1, 0xff, 0xef, + 0x19, 0x6a, 0xca, 0x46 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(4, true, &a) + .Read(4, true, &b) + .Read(4, true, &c) + .Read(4, true, &d) + .Read(4, true, &e) + .Read(4, true, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffff, b); + EXPECT_EQ(-0x80000000LL, c); + EXPECT_EQ(-1, d); + EXPECT_EQ((int32_t) 0xb6b1ffef, e); + EXPECT_EQ(0x196aca46, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(4, true, &g)); +} + +TEST(BigEndian, Signed8) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x93, 0x20, 0xd5, 0xe9, 0xd2, 0xd5, 0x87, 0x9c, + 0x4e, 0x42, 0x49, 0xd2, 0x7f, 0x84, 0x14, 0xa4 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, true); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(8, true, &a) + .Read(8, true, &b) + .Read(8, true, &c) + .Read(8, true, &d) + .Read(8, true, &e) + .Read(8, true, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffffffffffffLL, b); + EXPECT_EQ(-0x7fffffffffffffffLL - 1, c); + EXPECT_EQ(-1, d); + EXPECT_EQ((int64_t) 0x9320d5e9d2d5879cULL, e); + EXPECT_EQ(0x4e4249d27f8414a4LL, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(8, true, &g)); +} + +TEST(BigEndian, Unsigned1) { + uint8_t data[] = { 0x00, 0x7f, 0x80, 0xff }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + int32_t a, b, c, d, e; + ASSERT_TRUE(cursor + .Read(1, false, &a) + .Read(1, false, &b) + .Read(1, false, &c) + .Read(1, false, &d)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7f, b); + EXPECT_EQ(0x80, c); + EXPECT_EQ(0xff, d); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(1, false, &e)); +} + +TEST(BigEndian, Unsigned2) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x80, 0x7f, 0xff, + 0x80, 0x00, 0x80, 0x80, 0xff, 0xff, + 0x39, 0xf1, 0x8a, 0xbc, 0x5a, 0xec }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, true); + int64_t a, b, c, d, e, f, g, h, i, j; + ASSERT_TRUE(cursor + .Read(2, false, &a) + .Read(2, false, &b) + .Read(2, false, &c) + .Read(2, false, &d) + .Read(2, false, &e) + .Read(2, false, &f) + .Read(2, false, &g) + .Read(2, false, &h) + .Read(2, false, &i)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x80, b); + EXPECT_EQ(0x7fff, c); + EXPECT_EQ(0x8000, d); + EXPECT_EQ(0x8080, e); + EXPECT_EQ(0xffff, f); + EXPECT_EQ(0x39f1, g); + EXPECT_EQ(0x8abc, h); + EXPECT_EQ(0x5aec, i); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(2, false, &j)); +} + +TEST(BigEndian, Unsigned4) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xff, 0xff, 0xff, + 0x80, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, + 0xb6, 0xb1, 0xff, 0xef, + 0x19, 0x6a, 0xca, 0x46 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(4, false, &a) + .Read(4, false, &b) + .Read(4, false, &c) + .Read(4, false, &d) + .Read(4, false, &e) + .Read(4, false, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffff, b); + EXPECT_EQ(0x80000000, c); + EXPECT_EQ(0xffffffff, d); + EXPECT_EQ(0xb6b1ffef, e); + EXPECT_EQ(0x196aca46, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(4, false, &g)); +} + +TEST(BigEndian, Unsigned8) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x93, 0x20, 0xd5, 0xe9, 0xd2, 0xd5, 0x87, 0x9c, + 0x4e, 0x42, 0x49, 0xd2, 0x7f, 0x84, 0x14, 0xa4 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, true); + uint64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(8, false, &a) + .Read(8, false, &b) + .Read(8, false, &c) + .Read(8, false, &d) + .Read(8, false, &e) + .Read(8, false, &f)); + EXPECT_EQ(0U, a); + EXPECT_EQ(0x7fffffffffffffffULL, b); + EXPECT_EQ(0x8000000000000000ULL, c); + EXPECT_EQ(0xffffffffffffffffULL, d); + EXPECT_EQ(0x9320d5e9d2d5879cULL, e); + EXPECT_EQ(0x4e4249d27f8414a4ULL, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(8, false, &g)); +} + +TEST(LittleEndian, Signed1) { + uint8_t data[] = { 0x00, 0x7f, 0x80, 0xff }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int32_t a, b, c, d, e; + ASSERT_TRUE(cursor + .Read(1, true, &a) + .Read(1, true, &b) + .Read(1, true, &c) + .Read(1, true, &d)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7f, b); + EXPECT_EQ(-0x80, c); + EXPECT_EQ(-1, d); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(1, true, &e)); +} + +TEST(LittleEndian, Signed2) { + uint8_t data[] = { 0x00, 0x00, 0x80, 0x00, 0xff, 0x7f, + 0x00, 0x80, 0x80, 0x80, 0xff, 0xff, + 0xf1, 0x39, 0xbc, 0x8a, 0xec, 0x5a }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, false); + int32_t a, b, c, d, e, f, g, h, i, j; + ASSERT_TRUE(cursor + .Read(2, true, &a) + .Read(2, true, &b) + .Read(2, true, &c) + .Read(2, true, &d) + .Read(2, true, &e) + .Read(2, true, &f) + .Read(2, true, &g) + .Read(2, true, &h) + .Read(2, true, &i)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x80, b); + EXPECT_EQ(0x7fff, c); + EXPECT_EQ(-0x8000, d); + EXPECT_EQ(-0x7f80, e); + EXPECT_EQ(-1, f); + EXPECT_EQ(0x39f1, g); + EXPECT_EQ(-0x7544, h); + EXPECT_EQ(0x5aec, i); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(2, true, &j)); +} + +TEST(LittleEndian, Signed4) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0x7f, + 0x00, 0x00, 0x00, 0x80, + 0xff, 0xff, 0xff, 0xff, + 0xef, 0xff, 0xb1, 0xb6, + 0x46, 0xca, 0x6a, 0x19 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(4, true, &a) + .Read(4, true, &b) + .Read(4, true, &c) + .Read(4, true, &d) + .Read(4, true, &e) + .Read(4, true, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffff, b); + EXPECT_EQ(-0x80000000LL, c); + EXPECT_EQ(-1, d); + EXPECT_EQ((int32_t) 0xb6b1ffef, e); + EXPECT_EQ(0x196aca46, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(4, true, &g)); +} + +TEST(LittleEndian, Signed8) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x9c, 0x87, 0xd5, 0xd2, 0xe9, 0xd5, 0x20, 0x93, + 0xa4, 0x14, 0x84, 0x7f, 0xd2, 0x49, 0x42, 0x4e }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer, false); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(8, true, &a) + .Read(8, true, &b) + .Read(8, true, &c) + .Read(8, true, &d) + .Read(8, true, &e) + .Read(8, true, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffffffffffffLL, b); + EXPECT_EQ(-0x7fffffffffffffffLL - 1, c); + EXPECT_EQ(-1, d); + EXPECT_EQ((int64_t) 0x9320d5e9d2d5879cULL, e); + EXPECT_EQ(0x4e4249d27f8414a4LL, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(8, true, &g)); +} + +TEST(LittleEndian, Unsigned1) { + uint8_t data[] = { 0x00, 0x7f, 0x80, 0xff }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int32_t a, b, c, d, e; + ASSERT_TRUE(cursor + .Read(1, false, &a) + .Read(1, false, &b) + .Read(1, false, &c) + .Read(1, false, &d)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7f, b); + EXPECT_EQ(0x80, c); + EXPECT_EQ(0xff, d); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(1, false, &e)); +} + +TEST(LittleEndian, Unsigned2) { + uint8_t data[] = { 0x00, 0x00, 0x80, 0x00, 0xff, 0x7f, + 0x00, 0x80, 0x80, 0x80, 0xff, 0xff, + 0xf1, 0x39, 0xbc, 0x8a, 0xec, 0x5a }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int32_t a, b, c, d, e, f, g, h, i, j; + ASSERT_TRUE(cursor + .Read(2, false, &a) + .Read(2, false, &b) + .Read(2, false, &c) + .Read(2, false, &d) + .Read(2, false, &e) + .Read(2, false, &f) + .Read(2, false, &g) + .Read(2, false, &h) + .Read(2, false, &i)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x80, b); + EXPECT_EQ(0x7fff, c); + EXPECT_EQ(0x8000, d); + EXPECT_EQ(0x8080, e); + EXPECT_EQ(0xffff, f); + EXPECT_EQ(0x39f1, g); + EXPECT_EQ(0x8abc, h); + EXPECT_EQ(0x5aec, i); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(2, false, &j)); +} + +TEST(LittleEndian, Unsigned4) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0x7f, + 0x00, 0x00, 0x00, 0x80, + 0xff, 0xff, 0xff, 0xff, + 0xef, 0xff, 0xb1, 0xb6, + 0x46, 0xca, 0x6a, 0x19 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(4, false, &a) + .Read(4, false, &b) + .Read(4, false, &c) + .Read(4, false, &d) + .Read(4, false, &e) + .Read(4, false, &f)); + EXPECT_EQ(0, a); + EXPECT_EQ(0x7fffffff, b); + EXPECT_EQ(0x80000000, c); + EXPECT_EQ(0xffffffff, d); + EXPECT_EQ(0xb6b1ffef, e); + EXPECT_EQ(0x196aca46, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(4, false, &g)); +} + +TEST(LittleEndian, Unsigned8) { + uint8_t data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x9c, 0x87, 0xd5, 0xd2, 0xe9, 0xd5, 0x20, 0x93, + 0xa4, 0x14, 0x84, 0x7f, 0xd2, 0x49, 0x42, 0x4e }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + uint64_t a, b, c, d, e, f, g; + ASSERT_TRUE(cursor + .Read(8, false, &a) + .Read(8, false, &b) + .Read(8, false, &c) + .Read(8, false, &d) + .Read(8, false, &e) + .Read(8, false, &f)); + EXPECT_EQ(0U, a); + EXPECT_EQ(0x7fffffffffffffffULL, b); + EXPECT_EQ(0x8000000000000000ULL, c); + EXPECT_EQ(0xffffffffffffffffULL, d); + EXPECT_EQ(0x9320d5e9d2d5879cULL, e); + EXPECT_EQ(0x4e4249d27f8414a4ULL, f); + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor.Read(8, false, &g)); +} + +TEST(Extractor, Signed1) { + uint8_t data[] = { 0xfd }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int8_t a; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(-3, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Signed2) { + uint8_t data[] = { 0x13, 0xcd }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int16_t a; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(-13037, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Signed4) { + uint8_t data[] = { 0xd2, 0xe4, 0x53, 0xe9 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + int32_t a; + // For some reason, G++ 4.4.1 complains: + // warning: array subscript is above array bounds + // in ByteCursor::Read(size_t, bool, T*) as it inlines this call, but + // I'm not able to see how such a reference would occur. + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(-380377902, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Unsigned1) { + uint8_t data[] = { 0xfd }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + uint8_t a; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(0xfd, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Unsigned2) { + uint8_t data[] = { 0x13, 0xcd }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + uint16_t a; + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(0xcd13, a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Unsigned4) { + uint8_t data[] = { 0xd2, 0xe4, 0x53, 0xe9 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + uint32_t a; + // For some reason, G++ 4.4.1 complains: + // warning: array subscript is above array bounds + // in ByteCursor::Read(size_t, bool, T*) as it inlines this call, but + // I'm not able to see how such a reference would occur. + EXPECT_TRUE(cursor >> a); + EXPECT_EQ(0xe953e4d2, a); + EXPECT_FALSE(cursor >> a); + EXPECT_FALSE(cursor >> a); +} + +TEST(Extractor, Mixed) { + uint8_t data[] = { 0x42, + 0x25, 0x0b, + 0x3d, 0x25, 0xed, 0x2a, + 0xec, 0x16, 0x9e, 0x14, 0x61, 0x5b, 0x2c, 0xcf, + 0xd8, + 0x22, 0xa5, + 0x3a, 0x02, 0x6a, 0xd7, + 0x93, 0x2a, 0x2d, 0x8d, 0xb4, 0x95, 0xe0, 0xc6 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + cursor.set_big_endian(true); + + uint8_t a; + uint16_t b; + uint32_t c; + uint64_t d; + int8_t e; + int16_t f; + int32_t g; + int64_t h; + int z; + EXPECT_FALSE(cursor.AtEnd()); + EXPECT_TRUE(cursor >> a >> b >> c >> d >> e >> f >> g >> h); + EXPECT_EQ(0x42U, a); + EXPECT_EQ(0x250bU, b); + EXPECT_EQ(0x3d25ed2aU, c); + EXPECT_EQ(0xec169e14615b2ccfULL, d); + EXPECT_EQ(-40, e); + EXPECT_EQ(0x22a5, f); + EXPECT_EQ(0x3a026ad7, g); + EXPECT_EQ(-7842405714468937530LL, h); + + EXPECT_TRUE(cursor.AtEnd()); + EXPECT_FALSE(cursor >> z); +} + +TEST(Strings, Zero) { + uint8_t data[] = { 0xa6 }; + ByteBuffer buffer(data, 0); + ByteCursor cursor(&buffer); + + uint8_t received[1]; + received[0] = 0xc2; + EXPECT_TRUE(cursor.Read(received, 0)); + EXPECT_EQ(0xc2U, received[0]); +} + +TEST(Strings, Some) { + uint8_t data[] = { 0x5d, 0x31, 0x09, 0xa6, 0x2e, 0x2c, 0x83, 0xbb }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + uint8_t received[7] = { 0xa7, 0xf7, 0x43, 0x0c, 0x27, 0xea, 0xed }; + EXPECT_TRUE(cursor.Skip(2).Read(received, 5)); + uint8_t expected[7] = { 0x09, 0xa6, 0x2e, 0x2c, 0x83, 0xea, 0xed }; + EXPECT_TRUE(memcmp(received, expected, 7) == 0); +} + +TEST(Strings, TooMuch) { + uint8_t data[] = { 0x5d, 0x31, 0x09, 0xa6, 0x2e, 0x2c, 0x83, 0xbb }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + uint8_t received1[3]; + uint8_t received2[3]; + uint8_t received3[3]; + EXPECT_FALSE(cursor + .Read(received1, 3) + .Read(received2, 3) + .Read(received3, 3)); + uint8_t expected1[3] = { 0x5d, 0x31, 0x09 }; + uint8_t expected2[3] = { 0xa6, 0x2e, 0x2c }; + + EXPECT_TRUE(memcmp(received1, expected1, 3) == 0); + EXPECT_TRUE(memcmp(received2, expected2, 3) == 0); +} + +TEST(Strings, PointTo) { + uint8_t data[] = { 0x83, 0x80, 0xb4, 0x38, 0x00, 0x2c, 0x0a, 0x27 }; + ByteBuffer buffer(data, sizeof(data)); + ByteCursor cursor(&buffer); + + const uint8_t* received1; + const uint8_t* received2; + const uint8_t* received3; + const uint8_t* received4; + EXPECT_FALSE(cursor + .PointTo(&received1, 3) + .PointTo(&received2, 3) + .PointTo(&received3) + .PointTo(&received4, 3)); + EXPECT_EQ(data + 0, received1); + EXPECT_EQ(data + 3, received2); + EXPECT_EQ(data + 6, received3); + EXPECT_EQ(NULL, received4); +} + +TEST(Strings, CString) { + uint8_t data[] = "abc\0\0foo"; + ByteBuffer buffer(data, sizeof(data) - 1); // don't include terminating '\0' + ByteCursor cursor(&buffer); + + string a, b, c; + EXPECT_TRUE(cursor.CString(&a).CString(&b)); + EXPECT_EQ("abc", a); + EXPECT_EQ("", b); + EXPECT_FALSE(cursor.CString(&c)); + EXPECT_EQ("", c); + EXPECT_TRUE(cursor.AtEnd()); +} + +TEST(Strings, CStringLimit) { + uint8_t data[] = "abcdef\0\0foobar"; + ByteBuffer buffer(data, sizeof(data) - 1); // don't include terminating '\0' + ByteCursor cursor(&buffer); + + string a, b, c, d, e; + + EXPECT_TRUE(cursor.CString(&a, 3)); + EXPECT_EQ("abc", a); + + EXPECT_TRUE(cursor.CString(&b, 0)); + EXPECT_EQ("", b); + + EXPECT_TRUE(cursor.CString(&c, 6)); + EXPECT_EQ("def", c); + + EXPECT_TRUE(cursor.CString(&d, 4)); + EXPECT_EQ("ooba", d); + + EXPECT_FALSE(cursor.CString(&e, 4)); + EXPECT_EQ("", e); + + EXPECT_TRUE(cursor.AtEnd()); +} + +// uint8_t data[] = { 0xa6, 0x54, 0xdf, 0x67, 0x51, 0x43, 0xac, 0xf1 }; +// ByteBuffer buffer(data, sizeof(data)); |