The Tor Browser: toolkit/crashreporter/google-breakpad/src/common/test_assembler

toolkit/crashreporter/google-breakpad/src/common/test_assembler_unittest.cc@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/test_assembler_unittest.cc

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 // Copyright (c) 2010, Google Inc.
 // All rights reserved.
 //
 // 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 Inc. 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>
 // test_assembler_unittest.cc: Unit tests for google_breakpad::TestAssembler.
 #include <string>
 #include <string.h>
 #include "breakpad_googletest_includes.h"
 #include "common/test_assembler.h"
 #include "common/using_std_string.h"
 using google_breakpad::test_assembler::Label;
 using google_breakpad::test_assembler::Section;
 using google_breakpad::test_assembler::kBigEndian;
 using google_breakpad::test_assembler::kLittleEndian;
 using testing::Test;
 TEST(ConstructLabel, Simple) {
   Label l;
 }
 TEST(ConstructLabel, Undefined) {
   Label l;
   EXPECT_FALSE(l.IsKnownConstant());
 }
 TEST(ConstructLabelDeathTest, Undefined) {
   Label l;
   ASSERT_DEATH(l.Value(), "IsKnownConstant\\(&v\\)");
 }
 TEST(ConstructLabel, Constant) {
   Label l(0x060b9f974eaf301eULL);
   uint64_t v;
   EXPECT_TRUE(l.IsKnownConstant(&v));
   EXPECT_EQ(v, 0x060b9f974eaf301eULL);
   EXPECT_EQ(l.Value(), 0x060b9f974eaf301eULL);
 }
 TEST(ConstructLabel, Copy) {
   Label l;
   Label m(l);
   uint64_t v;
   EXPECT_TRUE(l.IsKnownOffsetFrom(m, &v));
   EXPECT_EQ(0U, v);
 }
 // The left-hand-side of a label assignment can be either
 // unconstrained, related, or known. The right-hand-side can be any of
 // those, or an integer.
 TEST(Assignment, UnconstrainedToUnconstrained) {
   Label l, m;
   l = m;
   EXPECT_EQ(0U, l-m);
   EXPECT_TRUE(l.IsKnownOffsetFrom(m));
   uint64_t d;
   EXPECT_TRUE(l.IsKnownOffsetFrom(m, &d));
   EXPECT_EQ(0U, d);
   EXPECT_FALSE(l.IsKnownConstant());
 }
 TEST(Assignment, UnconstrainedToRelated) {
   Label l, m, n;
   l = n;
   l = m;
   EXPECT_EQ(0U, l-m);
   EXPECT_TRUE(l.IsKnownOffsetFrom(m));
   uint64_t d;
   EXPECT_TRUE(l.IsKnownOffsetFrom(m, &d));
   EXPECT_EQ(0U, d);
   EXPECT_FALSE(l.IsKnownConstant());
 }
 TEST(Assignment, UnconstrainedToKnown) {
   Label l, m;
   l = 0x8fd16e55b20a39c1ULL;
   l = m;
   EXPECT_EQ(0U, l-m);
   EXPECT_TRUE(l.IsKnownOffsetFrom(m));
   uint64_t d;
   EXPECT_TRUE(l.IsKnownOffsetFrom(m, &d));
   EXPECT_EQ(0U, d);
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0x8fd16e55b20a39c1ULL, m.Value());
 }
 TEST(Assignment, RelatedToUnconstrained) {
   Label l, m, n;
   m = n;
   l = m;
   EXPECT_EQ(0U, l-n);
   EXPECT_TRUE(l.IsKnownOffsetFrom(n));
   uint64_t d;
   EXPECT_TRUE(l.IsKnownOffsetFrom(n, &d));
   EXPECT_EQ(0U, d);
   EXPECT_FALSE(l.IsKnownConstant());
 }
 TEST(Assignment, RelatedToRelated) {
   Label l, m, n, o;
   l = n;
   m = o;
   l = m;
   EXPECT_EQ(0U, n-o);
   EXPECT_TRUE(n.IsKnownOffsetFrom(o));
   uint64_t d;
   EXPECT_TRUE(n.IsKnownOffsetFrom(o, &d));
   EXPECT_EQ(0U, d);
   EXPECT_FALSE(l.IsKnownConstant());
 }
 TEST(Assignment, RelatedToKnown) {
   Label l, m, n;
   m = n;
   l = 0xd2011f8c82ad56f2ULL;
   l = m;
   EXPECT_TRUE(l.IsKnownConstant());
   EXPECT_EQ(0xd2011f8c82ad56f2ULL, l.Value());
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0xd2011f8c82ad56f2ULL, m.Value());
   EXPECT_TRUE(n.IsKnownConstant());
   EXPECT_EQ(0xd2011f8c82ad56f2ULL, n.Value());
 }
 TEST(Assignment, KnownToUnconstrained) {
   Label l, m;
   m = 0x50b024c0d6073887ULL;
   l = m;
   EXPECT_TRUE(l.IsKnownConstant());
   EXPECT_EQ(0x50b024c0d6073887ULL, l.Value());
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0x50b024c0d6073887ULL, m.Value());
 }
 TEST(Assignment, KnownToRelated) {
   Label l, m, n;
   l = n;
   m = 0x5348883655c727e5ULL;
   l = m;
   EXPECT_TRUE(l.IsKnownConstant());
   EXPECT_EQ(0x5348883655c727e5ULL, l.Value());
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0x5348883655c727e5ULL, m.Value());
   EXPECT_TRUE(n.IsKnownConstant());
   EXPECT_EQ(0x5348883655c727e5ULL, n.Value());
 }
 TEST(Assignment, KnownToKnown) {
   Label l, m;
   l = 0x36c209c20987564eULL;
   m = 0x36c209c20987564eULL;
   l = m;
   EXPECT_TRUE(l.IsKnownConstant());
   EXPECT_EQ(0x36c209c20987564eULL, l.Value());
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0x36c209c20987564eULL, m.Value());
 }
 TEST(Assignment, ConstantToUnconstrained) {
   Label l;
   l = 0xc02495f4d7f5a957ULL;
   EXPECT_TRUE(l.IsKnownConstant());
   EXPECT_EQ(0xc02495f4d7f5a957ULL, l.Value());
 }
 TEST(Assignment, ConstantToRelated) {
   Label l, m;
   l = m;
   l = 0x4577901cf275488dULL;
   EXPECT_TRUE(l.IsKnownConstant());
   EXPECT_EQ(0x4577901cf275488dULL, l.Value());
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0x4577901cf275488dULL, m.Value());
 }
 TEST(Assignment, ConstantToKnown) {
   Label l;
   l = 0xec0b9c369b7e8ea7ULL;
   l = 0xec0b9c369b7e8ea7ULL;
   EXPECT_TRUE(l.IsKnownConstant());
   EXPECT_EQ(0xec0b9c369b7e8ea7ULL, l.Value());
 }
 TEST(AssignmentDeathTest, Self) {
   Label l;
   ASSERT_DEATH(l = l, "binding != this");
 }
 TEST(AssignmentDeathTest, IndirectCycle) {
   Label l, m, n;
   l = m;
   m = n;
   ASSERT_DEATH(n = l, "binding != this");
 }
 TEST(AssignmentDeathTest, Cycle) {
   Label l, m, n, o;
   l = m;
   m = n;
   o = n;
   ASSERT_DEATH(o = l, "binding != this");
 }
 TEST(Addition, LabelConstant) {
   Label l, m;
   m = l + 0x5248d93e8bbe9497ULL;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l));
   uint64_t d;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d));
   EXPECT_EQ(0x5248d93e8bbe9497ULL, d);
   EXPECT_FALSE(m.IsKnownConstant());
 }
 TEST(Addition, ConstantLabel) {
   Label l, m;
   m = 0xf51e94e00d6e3c84ULL + l;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l));
   uint64_t d;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d));
   EXPECT_EQ(0xf51e94e00d6e3c84ULL, d);
   EXPECT_FALSE(m.IsKnownConstant());
 }
 TEST(Addition, KnownLabelConstant) {
   Label l, m;
   l = 0x16286307042ce0d8ULL;
   m = l + 0x3fdddd91306719d7ULL;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l));
   uint64_t d;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d));
   EXPECT_EQ(0x3fdddd91306719d7ULL, d);
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0x16286307042ce0d8ULL + 0x3fdddd91306719d7ULL, m.Value());
 }
 TEST(Addition, ConstantKnownLabel) {
   Label l, m;
   l = 0x50f62d0cdd1031deULL;
   m = 0x1b13462d8577c538ULL + l;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l));
   uint64_t d;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d));
   EXPECT_EQ(0x1b13462d8577c538ULL, d);
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0x50f62d0cdd1031deULL + 0x1b13462d8577c538ULL, m.Value());
 }
 TEST(Subtraction, LabelConstant) {
   Label l, m;
   m = l - 0x0620884d21d3138eULL;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l));
   uint64_t d;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d));
   EXPECT_EQ(-0x0620884d21d3138eULL, d);
   EXPECT_FALSE(m.IsKnownConstant());
 }
 TEST(Subtraction, KnownLabelConstant) {
   Label l, m;
   l = 0x6237fbaf9ef7929eULL;
   m = l - 0x317730995d2ab6eeULL;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l));
   uint64_t d;
   EXPECT_TRUE(m.IsKnownOffsetFrom(l, &d));
   EXPECT_EQ(-0x317730995d2ab6eeULL, d);
   EXPECT_TRUE(m.IsKnownConstant());
   EXPECT_EQ(0x6237fbaf9ef7929eULL - 0x317730995d2ab6eeULL, m.Value());
 }
 TEST(SubtractionDeathTest, LabelLabel) {
   Label l, m;
   ASSERT_DEATH(l - m, "IsKnownOffsetFrom\\(label, &offset\\)");
 }
 TEST(Subtraction, LabelLabel) {
   Label l, m;
   l = m + 0x7fa77ec63e28a17aULL;
   EXPECT_EQ(0x7fa77ec63e28a17aULL, l - m);
   EXPECT_EQ(-0x7fa77ec63e28a17aULL, m - l);
 }
 TEST(IsKnownConstant, Undefined) {
   Label l;
   EXPECT_FALSE(l.IsKnownConstant());
 }
 TEST(IsKnownConstant, RelatedLabel) {
   Label l, m;
   l = m;
   EXPECT_FALSE(l.IsKnownConstant());
   EXPECT_FALSE(m.IsKnownConstant());
 }
 TEST(IsKnownConstant, Constant) {
   Label l;
   l = 0xf374b1bdd6a22576ULL;
   EXPECT_TRUE(l.IsKnownConstant());
 }
 TEST(IsKnownOffsetFrom, Unrelated) {
   Label l, m;
   EXPECT_FALSE(l.IsKnownOffsetFrom(m));
 }
 TEST(IsKnownOffsetFrom, Related) {
   Label l, m;
   l = m;
   EXPECT_TRUE(l.IsKnownOffsetFrom(m));
 }
 // Test the construction of chains of related labels, and the
 // propagation of values through them.
 //
 // Although the relations between labels are supposed to behave
 // symmetrically --- that is, 'a = b' should put a and b in
 // indistinguishable states --- there's a distinction made internally
 // between the target (a) and the source (b).
 //
 // So there are five test axes to cover:
 //
 // - Do we construct the chain with assignment ("Assign") or with constructors
 //   ("Construct")?
 //
 // - Do we set the value of the label at the start of the chain
 //   ("Start") or the label at the end ("End")?
 //
 // - Are we testing the propagation of a relationship between variable
 //   values ("Relation"), or the propagation of a known constant value
 //   ("Value")?
 //
 // - Do we set the value before building the chain ("Before") or after
 //   the chain has been built ("After")?
 //
 // - Do we add new relationships to the end of the existing chain
 //   ("Forward") or to the beginning ("Backward")?
 //
 // Of course, "Construct" and "Backward" can't be combined, which
 // eliminates eight combinations, and "Construct", "End", and "Before"
 // can't be combined, which eliminates two more, so there are are 22
 // combinations, not 32.
 TEST(LabelChain, AssignStartRelationBeforeForward) {
   Label a, b, c, d;
   Label x;
   a = x;
   b = a + 0x1;
   c = b + 0x10;
   d = c + 0x100;
   EXPECT_EQ(0x111U, d-x);
   EXPECT_EQ(0x11U,  c-x);
   EXPECT_EQ(0x1U,   b-x);
   EXPECT_EQ(0U,     a-x);
 }
 TEST(LabelChain, AssignStartRelationBeforeBackward) {
   Label a, b, c, d;
   Label x;
   a = x;
   d = c + 0x100;
   c = b + 0x10;
   b = a + 0x1;
   EXPECT_EQ(0x111U, d-x);
   EXPECT_EQ(0x11U,  c-x);
   EXPECT_EQ(0x1U,   b-x);
   EXPECT_EQ(0U,     a-x);
 }
 TEST(LabelChain, AssignStartRelationAfterForward) {
   Label a, b, c, d;
   Label x;
   b = a + 0x1;
   c = b + 0x10;
   d = c + 0x100;
   a = x;
   EXPECT_EQ(0x111U, d-x);
   EXPECT_EQ(0x11U,  c-x);
   EXPECT_EQ(0x1U,   b-x);
   EXPECT_EQ(0U,     a-x);
 }
 TEST(LabelChain, AssignStartRelationAfterBackward) {
   Label a, b, c, d;
   Label x;
   d = c + 0x100;
   c = b + 0x10;
   b = a + 0x1;
   a = x;
   EXPECT_EQ(0x111U, d-x);
   EXPECT_EQ(0x11U,  c-x);
   EXPECT_EQ(0x1U,   b-x);
   EXPECT_EQ(0U,     a-x);
 }
 TEST(LabelChain, AssignStartValueBeforeForward) {
   Label a, b, c, d;
   a = 0xa131200190546ac2ULL;
   b = a + 0x1;
   c = b + 0x10;
   d = c + 0x100;
   EXPECT_EQ(0xa131200190546ac2ULL + 0x111U, d.Value());
   EXPECT_EQ(0xa131200190546ac2ULL + 0x11U,  c.Value());
   EXPECT_EQ(0xa131200190546ac2ULL + 0x1U,   b.Value());
   EXPECT_EQ(0xa131200190546ac2ULL + 0U,     a.Value());
 }
 TEST(LabelChain, AssignStartValueBeforeBackward) {
   Label a, b, c, d;
   a = 0x8da17e1670ad4fa2ULL;
   d = c + 0x100;
   c = b + 0x10;
   b = a + 0x1;
   EXPECT_EQ(0x8da17e1670ad4fa2ULL + 0x111U, d.Value());
   EXPECT_EQ(0x8da17e1670ad4fa2ULL + 0x11U,  c.Value());
   EXPECT_EQ(0x8da17e1670ad4fa2ULL + 0x1U,   b.Value());
   EXPECT_EQ(0x8da17e1670ad4fa2ULL + 0U,     a.Value());
 }
 TEST(LabelChain, AssignStartValueAfterForward) {
   Label a, b, c, d;
   b = a + 0x1;
   c = b + 0x10;
   d = c + 0x100;
   a = 0x99b8f51bafd41adaULL;
   EXPECT_EQ(0x99b8f51bafd41adaULL + 0x111U, d.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL + 0x11U,  c.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL + 0x1U,   b.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL + 0U,     a.Value());
 }
 TEST(LabelChain, AssignStartValueAfterBackward) {
   Label a, b, c, d;
   d = c + 0x100;
   c = b + 0x10;
   b = a + 0x1;
   a = 0xc86ca1d97ab5df6eULL;
   EXPECT_EQ(0xc86ca1d97ab5df6eULL + 0x111U, d.Value());
   EXPECT_EQ(0xc86ca1d97ab5df6eULL + 0x11U,  c.Value());
   EXPECT_EQ(0xc86ca1d97ab5df6eULL + 0x1U,   b.Value());
   EXPECT_EQ(0xc86ca1d97ab5df6eULL + 0U,     a.Value());
 }
 TEST(LabelChain, AssignEndRelationBeforeForward) {
   Label a, b, c, d;
   Label x;
   x = d;
   b = a + 0x1;
   c = b + 0x10;
   d = c + 0x100;
   EXPECT_EQ(-(uint64_t)0x111U, a-x);
   EXPECT_EQ(-(uint64_t)0x110U, b-x);
   EXPECT_EQ(-(uint64_t)0x100U, c-x);
   EXPECT_EQ(-(uint64_t)0U,     d-x);
 }
 TEST(LabelChain, AssignEndRelationBeforeBackward) {
   Label a, b, c, d;
   Label x;
   x = d;
   d = c + 0x100;
   c = b + 0x10;
   b = a + 0x1;
   EXPECT_EQ(-(uint64_t)0x111U, a-x);
   EXPECT_EQ(-(uint64_t)0x110U, b-x);
   EXPECT_EQ(-(uint64_t)0x100U, c-x);
   EXPECT_EQ(-(uint64_t)0U,     d-x);
 }
 TEST(LabelChain, AssignEndRelationAfterForward) {
   Label a, b, c, d;
   Label x;
   b = a + 0x1;
   c = b + 0x10;
   d = c + 0x100;
   x = d;
   EXPECT_EQ(-(uint64_t)0x111U, a-x);
   EXPECT_EQ(-(uint64_t)0x110U, b-x);
   EXPECT_EQ(-(uint64_t)0x100U, c-x);
   EXPECT_EQ(-(uint64_t)0x000U, d-x);
 }
 TEST(LabelChain, AssignEndRelationAfterBackward) {
   Label a, b, c, d;
   Label x;
   d = c + 0x100;
   c = b + 0x10;
   b = a + 0x1;
   x = d;
   EXPECT_EQ(-(uint64_t)0x111U, a-x);
   EXPECT_EQ(-(uint64_t)0x110U, b-x);
   EXPECT_EQ(-(uint64_t)0x100U, c-x);
   EXPECT_EQ(-(uint64_t)0x000U, d-x);
 }
 TEST(LabelChain, AssignEndValueBeforeForward) {
   Label a, b, c, d;
   d = 0xa131200190546ac2ULL;
   b = a + 0x1;
   c = b + 0x10;
   d = c + 0x100;
   EXPECT_EQ(0xa131200190546ac2ULL - 0x111, a.Value());
   EXPECT_EQ(0xa131200190546ac2ULL - 0x110, b.Value());
   EXPECT_EQ(0xa131200190546ac2ULL - 0x100, c.Value());
   EXPECT_EQ(0xa131200190546ac2ULL - 0x000, d.Value());
 }
 TEST(LabelChain, AssignEndValueBeforeBackward) {
   Label a, b, c, d;
   d = 0x8da17e1670ad4fa2ULL;
   d = c + 0x100;
   c = b + 0x10;
   b = a + 0x1;
   EXPECT_EQ(0x8da17e1670ad4fa2ULL - 0x111, a.Value());
   EXPECT_EQ(0x8da17e1670ad4fa2ULL - 0x110, b.Value());
   EXPECT_EQ(0x8da17e1670ad4fa2ULL - 0x100, c.Value());
   EXPECT_EQ(0x8da17e1670ad4fa2ULL - 0x000, d.Value());
 }
 TEST(LabelChain, AssignEndValueAfterForward) {
   Label a, b, c, d;
   b = a + 0x1;
   c = b + 0x10;
   d = c + 0x100;
   d = 0x99b8f51bafd41adaULL;
   EXPECT_EQ(0x99b8f51bafd41adaULL - 0x111, a.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL - 0x110, b.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL - 0x100, c.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL - 0x000, d.Value());
 }
 TEST(LabelChain, AssignEndValueAfterBackward) {
   Label a, b, c, d;
   d = c + 0x100;
   c = b + 0x10;
   b = a + 0x1;
   d = 0xc86ca1d97ab5df6eULL;
   EXPECT_EQ(0xc86ca1d97ab5df6eULL - 0x111, a.Value());
   EXPECT_EQ(0xc86ca1d97ab5df6eULL - 0x110, b.Value());
   EXPECT_EQ(0xc86ca1d97ab5df6eULL - 0x100, c.Value());
   EXPECT_EQ(0xc86ca1d97ab5df6eULL - 0x000, d.Value());
 }
 TEST(LabelChain, ConstructStartRelationBeforeForward) {
   Label x;
   Label a(x);
   Label b(a + 0x1);
   Label c(b + 0x10);
   Label d(c + 0x100);
   EXPECT_EQ(0x111U, d-x);
   EXPECT_EQ(0x11U,  c-x);
   EXPECT_EQ(0x1U,   b-x);
   EXPECT_EQ(0U,     a-x);
 }
 TEST(LabelChain, ConstructStartRelationAfterForward) {
   Label x;
   Label a;
   Label b(a + 0x1);
   Label c(b + 0x10);
   Label d(c + 0x100);
   a = x;
   EXPECT_EQ(0x111U, d-x);
   EXPECT_EQ(0x11U,  c-x);
   EXPECT_EQ(0x1U,   b-x);
   EXPECT_EQ(0U,     a-x);
 }
 TEST(LabelChain, ConstructStartValueBeforeForward) {
   Label a(0x5d234d177d01ccc8ULL);
   Label b(a + 0x1);
   Label c(b + 0x10);
   Label d(c + 0x100);
   EXPECT_EQ(0x5d234d177d01ccc8ULL + 0x111U, d.Value());
   EXPECT_EQ(0x5d234d177d01ccc8ULL + 0x011U, c.Value());
   EXPECT_EQ(0x5d234d177d01ccc8ULL + 0x001U, b.Value());
   EXPECT_EQ(0x5d234d177d01ccc8ULL + 0x000U, a.Value());
 }
 TEST(LabelChain, ConstructStartValueAfterForward) {
   Label a;
   Label b(a + 0x1);
   Label c(b + 0x10);
   Label d(c + 0x100);
   a = 0xded85d54586e84fcULL;
   EXPECT_EQ(0xded85d54586e84fcULL + 0x111U, d.Value());
   EXPECT_EQ(0xded85d54586e84fcULL + 0x011U, c.Value());
   EXPECT_EQ(0xded85d54586e84fcULL + 0x001U, b.Value());
   EXPECT_EQ(0xded85d54586e84fcULL + 0x000U, a.Value());
 }
 TEST(LabelChain, ConstructEndRelationAfterForward) {
   Label x;
   Label a;
   Label b(a + 0x1);
   Label c(b + 0x10);
   Label d(c + 0x100);
   x = d;
   EXPECT_EQ(-(uint64_t)0x111U, a-x);
   EXPECT_EQ(-(uint64_t)0x110U, b-x);
   EXPECT_EQ(-(uint64_t)0x100U, c-x);
   EXPECT_EQ(-(uint64_t)0x000U, d-x);
 }
 TEST(LabelChain, ConstructEndValueAfterForward) {
   Label a;
   Label b(a + 0x1);
   Label c(b + 0x10);
   Label d(c + 0x100);
   d = 0x99b8f51bafd41adaULL;
   EXPECT_EQ(0x99b8f51bafd41adaULL - 0x111, a.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL - 0x110, b.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL - 0x100, c.Value());
   EXPECT_EQ(0x99b8f51bafd41adaULL - 0x000, d.Value());
 }
 TEST(LabelTree, KnownValue) {
   Label l, m, n, o, p;
   l = m;
   m = n;
   o = p;
   p = n;
   l = 0x536b5de3d468a1b5ULL;
   EXPECT_EQ(0x536b5de3d468a1b5ULL, o.Value());
 }
 TEST(LabelTree, Related) {
   Label l, m, n, o, p;
   l = m - 1;
   m = n - 10;
   o = p + 100;
   p = n + 1000;
   EXPECT_EQ(1111U, o - l);
 }
 TEST(EquationDeathTest, EqualConstants) {
   Label m = 0x0d3962f280f07d24ULL;
   Label n = 0x0d3962f280f07d24ULL;
   m = n; // no death expected
 }
 TEST(EquationDeathTest, EqualIndirectConstants) {
   Label m = 0xa347f1e5238fe6a1ULL;
   Label n;
   Label o = n;
   n = 0xa347f1e5238fe6a1ULL;
   n = m; // no death expected
 }
 TEST(EquationDeathTest, ConstantClash) {
   Label m = 0xd4cc0f4f630ec741ULL;
   Label n = 0x934cd2d8254fc3eaULL;
   ASSERT_DEATH(m = n, "addend_ == addend");
 }
 TEST(EquationDeathTest, IndirectConstantClash) {
   Label m = 0xd4cc0f4f630ec741ULL;
   Label n, o;
   n = o;
   o = 0xcfbe3b83ac49ce86ULL;
   ASSERT_DEATH(m = n, "addend_ == addend");
 }
 // Assigning to a related label may free the next Binding on its
 // chain. This test always passes; it is interesting to memory
 // checkers and coverage analysis.
 TEST(LabelReferenceCount, AssignmentFree) {
   Label l;
   {
     Label m;
     l = m;
   }
   // This should free m's Binding.
   l = 0xca8bae92f0376d4fULL;
   ASSERT_EQ(0xca8bae92f0376d4fULL, l.Value());
 }
 // Finding the value of a label may free the Binding it refers to. This test
 // always passes; it is interesting to memory checkers and coverage analysis.
 TEST(LabelReferenceCount, FindValueFree) {
   Label l;
   {
     Label m, n;
     l = m;
     m = n;
     n = 0x7a0b0c576672daafULL;
     // At this point, l's Binding refers to m's Binding, which refers
     // to n's binding.
   }
   // Now, l is the only reference keeping the three Bindings alive.
   // Resolving its value should free l's and m's original bindings.
   ASSERT_EQ(0x7a0b0c576672daafULL, l.Value());
 }
 TEST(ConstructSection, Simple) {
   Section s;
 }
 TEST(ConstructSection, WithEndian) {
   Section s(kBigEndian);
 }
 // A fixture class for TestAssembler::Section tests.
 class SectionFixture {
  public:
   Section section;
   string contents;
   static const uint8_t data[];
   static const size_t data_size;
 };
 const uint8_t SectionFixture::data[] = {
 x87, 0x4f, 0x43, 0x67, 0x30, 0xd0, 0xd4, 0x0e
 };
 #define I0()
 #define I1(a) { a }
 #define I2(a,b) { a,b }
 #define I3(a,b,c) { a,b,c }
 #define I4(a,b,c,d) { a,b,c,d }
 #define I5(a,b,c,d,e) { a,b,c,d,e }
 #define I6(a,b,c,d,e,f) { a,b,c,d,e,f }
 #define I7(a,b,c,d,e,f,g) { a,b,c,d,e,f,g }
 #define I8(a,b,c,d,e,f,g,h) { a,b,c,d,e,f,g,h }
 #define I9(a,b,c,d,e,f,g,h,i) { a,b,c,d,e,f,g,h,i }
 #define ASSERT_BYTES(s, b)                                              \
   do                                                                    \
     {                                                                   \
       static const uint8_t expected_bytes[] = b;                       \
       ASSERT_EQ(sizeof(expected_bytes), s.size());                      \
       ASSERT_TRUE(memcmp(s.data(), (const char *) expected_bytes,       \
                          sizeof(expected_bytes)) == 0);                 \
     }                                                                   \
   while(0)
 class Append: public SectionFixture, public Test { };
 TEST_F(Append, Bytes) {
   section.Append(data, sizeof(data));
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_EQ(sizeof(data), contents.size());
   EXPECT_TRUE(0 == memcmp(contents.data(), (const char *) data, sizeof(data)));
 }
 TEST_F(Append, BytesTwice) {
   section.Append(data, sizeof(data));
   section.Append(data, sizeof(data));
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_EQ(2 * sizeof(data), contents.size());
   ASSERT_TRUE(0 == memcmp(contents.data(), (const char *) data, sizeof(data)));
   ASSERT_TRUE(0 == memcmp(contents.data() + sizeof(data),
                           (const char *) data, sizeof(data)));
 }
 TEST_F(Append, String) {
   string s1 = "howdy ";
   string s2 = "there";
   section.Append(s1);
   section.Append(s2);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_STREQ(contents.c_str(), "howdy there");
 }
 TEST_F(Append, CString) {
   section.AppendCString("howdy");
   section.AppendCString("");
   section.AppendCString("there");
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_EQ(string("howdy\0\0there\0", 13), contents);
 }
 TEST_F(Append, CStringSize) {
   section.AppendCString("howdy", 3);
   section.AppendCString("there", 5);
   section.AppendCString("fred", 6);
   section.AppendCString("natalie", 0);
   section.AppendCString("", 10);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_EQ(string("howtherefred\0\0\0\0\0\0\0\0\0\0\0\0", 24), contents);
 }
 TEST_F(Append, RepeatedBytes) {
   section.Append((size_t) 10, '*');
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_STREQ(contents.c_str(), "**********");
 }
 TEST_F(Append, GeneralLE1) {
   section.Append(kLittleEndian, 1, 42);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I1(42));
 }
 TEST_F(Append, GeneralLE2) {
   section.Append(kLittleEndian, 2, 0x15a1);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0xa1, 0x15));
 }
 TEST_F(Append, GeneralLE3) {
   section.Append(kLittleEndian, 3, 0x59ae8d);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x8d, 0xae, 0x59));
 }
 TEST_F(Append, GeneralLE4) {
   section.Append(kLittleEndian, 4, 0x51603c56);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I4(0x56, 0x3c, 0x60, 0x51));
 }
 TEST_F(Append, GeneralLE5) {
   section.Append(kLittleEndian, 5, 0x385e2803b4ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0xb4, 0x03, 0x28, 0x5e, 0x38));
 }
 TEST_F(Append, GeneralLE6) {
   section.Append(kLittleEndian, 6, 0xc7db9534dd1fULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I6(0x1f, 0xdd, 0x34, 0x95, 0xdb, 0xc7));
 }
 TEST_F(Append, GeneralLE7) {
   section.Append(kLittleEndian, 7, 0x1445c9f1b843e6ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I7(0xe6, 0x43, 0xb8, 0xf1, 0xc9, 0x45, 0x14));
 }
 TEST_F(Append, GeneralLE8) {
   section.Append(kLittleEndian, 8, 0xaf48019dfe5c01e5ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I8(0xe5, 0x01, 0x5c, 0xfe, 0x9d, 0x01, 0x48, 0xaf));
 }
 TEST_F(Append, GeneralBE1) {
   section.Append(kBigEndian, 1, 0xd0ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I1(0xd0));
 }
 TEST_F(Append, GeneralBE2) {
   section.Append(kBigEndian, 2, 0x2e7eULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2e, 0x7e));
 }
 TEST_F(Append, GeneralBE3) {
   section.Append(kBigEndian, 3, 0x37dad6ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x37, 0xda, 0xd6));
 }
 TEST_F(Append, GeneralBE4) {
   section.Append(kBigEndian, 4, 0x715935c7ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I4(0x71, 0x59, 0x35, 0xc7));
 }
 TEST_F(Append, GeneralBE5) {
   section.Append(kBigEndian, 5, 0x42baeb02b7ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x42, 0xba, 0xeb, 0x02, 0xb7));
 }
 TEST_F(Append, GeneralBE6) {
   section.Append(kBigEndian, 6, 0xf1cdf10e7b18ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I6(0xf1, 0xcd, 0xf1, 0x0e, 0x7b, 0x18));
 }
 TEST_F(Append, GeneralBE7) {
   section.Append(kBigEndian, 7, 0xf50a724f0b0d20ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I7(0xf5, 0x0a, 0x72, 0x4f, 0x0b, 0x0d, 0x20));
 }
 TEST_F(Append, GeneralBE8) {
   section.Append(kBigEndian, 8, 0xa6b2cb5e98dc9c16ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I8(0xa6, 0xb2, 0xcb, 0x5e, 0x98, 0xdc, 0x9c, 0x16));
 }
 TEST_F(Append, GeneralLE1Label) {
   Label l;
   section.Append(kLittleEndian, 1, l);
   l = 42;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I1(42));
 }
 TEST_F(Append, GeneralLE2Label) {
   Label l;
   section.Append(kLittleEndian, 2, l);
   l = 0x15a1;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0xa1, 0x15));
 }
 TEST_F(Append, GeneralLE3Label) {
   Label l;
   section.Append(kLittleEndian, 3, l);
   l = 0x59ae8d;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x8d, 0xae, 0x59));
 }
 TEST_F(Append, GeneralLE4Label) {
   Label l;
   section.Append(kLittleEndian, 4, l);
   l = 0x51603c56;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I4(0x56, 0x3c, 0x60, 0x51));
 }
 TEST_F(Append, GeneralLE5Label) {
   Label l;
   section.Append(kLittleEndian, 5, l);
   l = 0x385e2803b4ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0xb4, 0x03, 0x28, 0x5e, 0x38));
 }
 TEST_F(Append, GeneralLE6Label) {
   Label l;
   section.Append(kLittleEndian, 6, l);
   l = 0xc7db9534dd1fULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I6(0x1f, 0xdd, 0x34, 0x95, 0xdb, 0xc7));
 }
 TEST_F(Append, GeneralLE7Label) {
   Label l;
   section.Append(kLittleEndian, 7, l);
   l = 0x1445c9f1b843e6ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I7(0xe6, 0x43, 0xb8, 0xf1, 0xc9, 0x45, 0x14));
 }
 TEST_F(Append, GeneralLE8Label) {
   Label l;
   section.Append(kLittleEndian, 8, l);
   l = 0xaf48019dfe5c01e5ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I8(0xe5, 0x01, 0x5c, 0xfe, 0x9d, 0x01, 0x48, 0xaf));
 }
 TEST_F(Append, GeneralBE1Label) {
   Label l;
   section.Append(kBigEndian, 1, l);
   l = 0xd0ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I1(0xd0));
 }
 TEST_F(Append, GeneralBE2Label) {
   Label l;
   section.Append(kBigEndian, 2, l);
   l = 0x2e7eULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2e, 0x7e));
 }
 TEST_F(Append, GeneralBE3Label) {
   Label l;
   section.Append(kBigEndian, 3, l);
   l = 0x37dad6ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x37, 0xda, 0xd6));
 }
 TEST_F(Append, GeneralBE4Label) {
   Label l;
   section.Append(kBigEndian, 4, l);
   l = 0x715935c7ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I4(0x71, 0x59, 0x35, 0xc7));
 }
 TEST_F(Append, GeneralBE5Label) {
   Label l;
   section.Append(kBigEndian, 5, l);
   l = 0x42baeb02b7ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x42, 0xba, 0xeb, 0x02, 0xb7));
 }
 TEST_F(Append, GeneralBE6Label) {
   Label l;
   section.Append(kBigEndian, 6, l);
   l = 0xf1cdf10e7b18ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I6(0xf1, 0xcd, 0xf1, 0x0e, 0x7b, 0x18));
 }
 TEST_F(Append, GeneralBE7Label) {
   Label l;
   section.Append(kBigEndian, 7, l);
   l = 0xf50a724f0b0d20ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I7(0xf5, 0x0a, 0x72, 0x4f, 0x0b, 0x0d, 0x20));
 }
 TEST_F(Append, GeneralBE8Label) {
   Label l;
   section.Append(kBigEndian, 8, l);
   l = 0xa6b2cb5e98dc9c16ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I8(0xa6, 0xb2, 0xcb, 0x5e, 0x98, 0xdc, 0x9c, 0x16));
 }
 TEST_F(Append, B8) {
   section.Append(1, 0x2a);
   section.B8(0xd3U);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2a, 0xd3));
 }
 TEST_F(Append, B8Label) {
   Label l;
   section.Append(1, 0x2a);
   section.B8(l);
   l = 0x4bU;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2a, 0x4b));
 }
 TEST_F(Append, B16) {
   section.Append(1, 0x2a);
   section.B16(0x472aU);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x2a, 0x47, 0x2a));
 }
 TEST_F(Append, B16Label) {
   Label l;
   section.Append(1, 0x2a);
   section.B16(l);
   l = 0x55e8U;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x2a, 0x55, 0xe8));
 }
 TEST_F(Append, B32) {
   section.Append(1, 0x2a);
   section.B32(0xbd412cbcU);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x2a, 0xbd, 0x41, 0x2c, 0xbc));
 }
 TEST_F(Append, B32Label) {
   Label l;
   section.Append(1, 0x2a);
   section.B32(l);
   l = 0x208e37d5U;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x2a, 0x20, 0x8e, 0x37, 0xd5));
 }
 TEST_F(Append, B64) {
   section.Append(1, 0x2a);
   section.B64(0x3402a013111e68adULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents,
                I9(0x2a, 0x34, 0x02, 0xa0, 0x13, 0x11, 0x1e, 0x68, 0xad));
 }
 TEST_F(Append, B64Label) {
   Label l;
   section.Append(1, 0x2a);
   section.B64(l);
   l = 0x355dbfbb4ac6d57fULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents,
                I9(0x2a, 0x35, 0x5d, 0xbf, 0xbb, 0x4a, 0xc6, 0xd5, 0x7f));
 }
 TEST_F(Append, L8) {
   section.Append(1, 0x2a);
   section.L8(0x26U);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2a, 0x26));
 }
 TEST_F(Append, L8Label) {
   Label l;
   section.Append(1, 0x2a);
   section.L8(l);
   l = 0xa8U;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2a, 0xa8));
 }
 TEST_F(Append, L16) {
   section.Append(1, 0x2a);
   section.L16(0xca6dU);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x2a, 0x6d, 0xca));
 }
 TEST_F(Append, L16Label) {
   Label l;
   section.Append(1, 0x2a);
   section.L16(l);
   l = 0xd21fU;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x2a, 0x1f, 0xd2));
 }
 TEST_F(Append, L32) {
   section.Append(1, 0x2a);
   section.L32(0x558f6181U);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x2a, 0x81, 0x61, 0x8f, 0x55));
 }
 TEST_F(Append, L32Label) {
   Label l;
   section.Append(1, 0x2a);
   section.L32(l);
   l = 0x4b810f82U;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x2a, 0x82, 0x0f, 0x81, 0x4b));
 }
 TEST_F(Append, L64) {
   section.Append(1, 0x2a);
   section.L64(0x564384f7579515bfULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents,
                I9(0x2a, 0xbf, 0x15, 0x95, 0x57, 0xf7, 0x84, 0x43, 0x56));
 }
 TEST_F(Append, L64Label) {
   Label l;
   section.Append(1, 0x2a);
   section.L64(l);
   l = 0x424b1d020667c8dbULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents,
                I9(0x2a, 0xdb, 0xc8, 0x67, 0x06, 0x02, 0x1d, 0x4b, 0x42));
 }
 TEST_F(Append, D8Big) {
   section.set_endianness(kBigEndian);
   section.Append(1, 0x2a);
   section.D8(0xe6U);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2a, 0xe6));
 }
 TEST_F(Append, D8BigLabel) {
   Label l;
   section.set_endianness(kBigEndian);
   section.Append(1, 0x2a);
   section.D8(l);
   l = 0xeeU;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2a, 0xee));
 }
 TEST_F(Append, D16Big) {
   section.set_endianness(kBigEndian);
   section.Append(1, 0x2a);
   section.D16(0x83b1U);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x2a, 0x83, 0xb1));
 }
 TEST_F(Append, D16BigLabel) {
   Label l;
   section.set_endianness(kBigEndian);
   section.Append(1, 0x2a);
   section.D16(l);
   l = 0x5b55U;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x2a, 0x5b, 0x55));
 }
 TEST_F(Append, D32Big) {
   section.set_endianness(kBigEndian);
   section.Append(1, 0x2a);
   section.D32(0xd0b0e431U);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x2a, 0xd0, 0xb0, 0xe4, 0x31));
 }
 TEST_F(Append, D32BigLabel) {
   Label l;
   section.set_endianness(kBigEndian);
   section.Append(1, 0x2a);
   section.D32(l);
   l = 0x312fb340U;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x2a, 0x31, 0x2f, 0xb3, 0x40));
 }
 TEST_F(Append, D64Big) {
   section.set_endianness(kBigEndian);
   section.Append(1, 0x2a);
   section.D64(0xb109843500dbcb16ULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents,
                I9(0x2a, 0xb1, 0x09, 0x84, 0x35, 0x00, 0xdb, 0xcb, 0x16));
 }
 TEST_F(Append, D64BigLabel) {
   Label l;
   section.set_endianness(kBigEndian);
   section.Append(1, 0x2a);
   section.D64(l);
   l = 0x9a0d61b70f671fd7ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents,
                I9(0x2a, 0x9a, 0x0d, 0x61, 0xb7, 0x0f, 0x67, 0x1f, 0xd7));
 }
 TEST_F(Append, D8Little) {
   section.set_endianness(kLittleEndian);
   section.Append(1, 0x2a);
   section.D8(0x42U);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2a, 0x42));
 }
 TEST_F(Append, D8LittleLabel) {
   Label l;
   section.set_endianness(kLittleEndian);
   section.Append(1, 0x2a);
   section.D8(l);
   l = 0x05U;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I2(0x2a, 0x05));
 }
 TEST_F(Append, D16Little) {
   section.set_endianness(kLittleEndian);
   section.Append(1, 0x2a);
   section.D16(0xc5c5U);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x2a, 0xc5, 0xc5));
 }
 TEST_F(Append, D16LittleLabel) {
   Label l;
   section.set_endianness(kLittleEndian);
   section.Append(1, 0x2a);
   section.D16(l);
   l = 0xb620U;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I3(0x2a, 0x20, 0xb6));
 }
 TEST_F(Append, D32Little) {
   section.set_endianness(kLittleEndian);
   section.Append(1, 0x2a);
   section.D32(0x1a87d0feU);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x2a, 0xfe, 0xd0, 0x87, 0x1a));
 }
 TEST_F(Append, D32LittleLabel) {
   Label l;
   section.set_endianness(kLittleEndian);
   section.Append(1, 0x2a);
   section.D32(l);
   l = 0xb8012d6bU;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I5(0x2a, 0x6b, 0x2d, 0x01, 0xb8));
 }
 TEST_F(Append, D64Little) {
   section.set_endianness(kLittleEndian);
   section.Append(1, 0x2a);
   section.D64(0x42de75c61375a1deULL);
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents,
                I9(0x2a, 0xde, 0xa1, 0x75, 0x13, 0xc6, 0x75, 0xde, 0x42));
 }
 TEST_F(Append, D64LittleLabel) {
   Label l;
   section.set_endianness(kLittleEndian);
   section.Append(1, 0x2a);
   section.D64(l);
   l = 0x8b3bececf3fb5312ULL;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents,
                I9(0x2a, 0x12, 0x53, 0xfb, 0xf3, 0xec, 0xec, 0x3b, 0x8b));
 }
 TEST_F(Append, Variety) {
   Label a, b, c, d, e, f, g, h;
   section.Append(kBigEndian, 1, a)
       .Append(kLittleEndian, 8, h)
       .Append(kBigEndian, 1, 0x8bULL)
       .Append(kLittleEndian, 8, 0x0ea56540448f4439ULL)
       .Append(kBigEndian, 2, b)
       .Append(kLittleEndian, 7, g)
       .Append(kBigEndian, 2, 0xcf15ULL)
       .Append(kLittleEndian, 7, 0x29694f04c5724aULL)
       .Append(kBigEndian, 3, c)
       .Append(kLittleEndian, 6, f)
       .Append(kBigEndian, 3, 0x8c3ffdULL)
       .Append(kLittleEndian, 6, 0x6f11ba80187aULL)
       .Append(kBigEndian, 4, d)
       .Append(kLittleEndian, 5, e)
       .Append(kBigEndian, 4, 0x2fda2472ULL)
       .Append(kLittleEndian, 5, 0x0aa02d423fULL)
       .Append(kBigEndian, 5, e)
       .Append(kLittleEndian, 4, d)
       .Append(kBigEndian, 5, 0x53ba432138ULL)
       .Append(kLittleEndian, 4, 0xf139ae60ULL)
       .Append(kBigEndian, 6, f)
       .Append(kLittleEndian, 3, c)
       .Append(kBigEndian, 6, 0x168e436af716ULL)
       .Append(kLittleEndian, 3, 0x3ef189ULL)
       .Append(kBigEndian, 7, g)
       .Append(kLittleEndian, 2, b)
       .Append(kBigEndian, 7, 0xacd4ef233e47d9ULL)
       .Append(kLittleEndian, 2, 0x5311ULL)
       .Append(kBigEndian, 8, h)
       .Append(kLittleEndian, 1, a)
       .Append(kBigEndian, 8, 0x4668d5f1c93637a1ULL)
       .Append(kLittleEndian, 1, 0x65ULL);
   a = 0x79ac9bd8aa256b35ULL;
   b = 0x22d13097ef86c91cULL;
   c = 0xf204968b0a05862fULL;
   d = 0x163177f15a0eb4ecULL;
   e = 0xbd1b0f1d977f2246ULL;
   f = 0x2b0842eee83c6461ULL;
   g = 0x92f4b928a4bf875eULL;
   h = 0x61a199a8f7286ba6ULL;
   ASSERT_EQ(8 * 18U, section.Size());
   ASSERT_TRUE(section.GetContents(&contents));
   static const uint8_t expected[] = {
 x35,    0xa6, 0x6b, 0x28, 0xf7, 0xa8, 0x99, 0xa1, 0x61,
 x8b,    0x39, 0x44, 0x8f, 0x44, 0x40, 0x65, 0xa5, 0x0e,
 xc9, 0x1c,    0x5e, 0x87, 0xbf, 0xa4, 0x28, 0xb9, 0xf4,
 xcf, 0x15,    0x4a, 0x72, 0xc5, 0x04, 0x4f, 0x69, 0x29,
 x05, 0x86, 0x2f,    0x61, 0x64, 0x3c, 0xe8, 0xee, 0x42,
 x8c, 0x3f, 0xfd,    0x7a, 0x18, 0x80, 0xba, 0x11, 0x6f,
 x5a, 0x0e, 0xb4, 0xec,    0x46, 0x22, 0x7f, 0x97, 0x1d,
 x2f, 0xda, 0x24, 0x72,    0x3f, 0x42, 0x2d, 0xa0, 0x0a,
 x1d, 0x97, 0x7f, 0x22, 0x46,    0xec, 0xb4, 0x0e, 0x5a,
 x53, 0xba, 0x43, 0x21, 0x38,    0x60, 0xae, 0x39, 0xf1,
 x42, 0xee, 0xe8, 0x3c, 0x64, 0x61,    0x2f, 0x86, 0x05,
 x16, 0x8e, 0x43, 0x6a, 0xf7, 0x16,    0x89, 0xf1, 0x3e,
 xf4, 0xb9, 0x28, 0xa4, 0xbf, 0x87, 0x5e,    0x1c, 0xc9,
 xac, 0xd4, 0xef, 0x23, 0x3e, 0x47, 0xd9,    0x11, 0x53,
 x61, 0xa1, 0x99, 0xa8, 0xf7, 0x28, 0x6b, 0xa6,    0x35,
 x46, 0x68, 0xd5, 0xf1, 0xc9, 0x36, 0x37, 0xa1,    0x65,
   };
   ASSERT_TRUE(0 == memcmp(contents.data(), expected, sizeof(expected)));
 }
 TEST_F(Append, Section) {
   section.Append("murder");
   {
     Section middle;
     middle.Append(" she");
     section.Append(middle);
   }
   section.Append(" wrote");
   EXPECT_EQ(16U, section.Size());
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_STREQ(contents.c_str(), "murder she wrote");
 }
 TEST_F(Append, SectionRefs) {
   section.Append("sugar ");
   Label l;
   {
     Section middle;
     Label m;
     middle.B32(m);
     section.Append(middle);
     m = 0x66726565;
   }
   section.Append(" jazz");
   EXPECT_EQ(15U, section.Size());
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_STREQ(contents.c_str(), "sugar free jazz");
 }
 TEST_F(Append, LEB128_0) {
   section.LEB128(0);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\0", 1), contents);
 }
 TEST_F(Append, LEB128_0x3f) {
   section.LEB128(0x3f);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x3f", 1), contents);
 }
 TEST_F(Append, LEB128_0x40) {
   section.LEB128(0x40);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xc0\x00", 2), contents);
 }
 TEST_F(Append, LEB128_0x7f) {
   section.LEB128(0x7f);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xff\x00", 2), contents);
 }
 TEST_F(Append, LEB128_0x80) {
   section.LEB128(0x80);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\x01", 2), contents);
 }
 TEST_F(Append, LEB128_0xff) {
   section.LEB128(0xff);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xff\x01", 2), contents);
 }
 TEST_F(Append, LEB128_0x1fff) {
   section.LEB128(0x1fff);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xff\x3f", 2), contents);
 }
 TEST_F(Append, LEB128_0x2000) {
   section.LEB128(0x2000);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\xc0\x00", 3), contents);
 }
 TEST_F(Append, LEB128_n1) {
   section.LEB128(-1);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x7f", 1), contents);
 }
 TEST_F(Append, LEB128_n0x40) {
   section.LEB128(-0x40);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x40", 1), contents);
 }
 TEST_F(Append, LEB128_n0x41) {
   section.LEB128(-0x41);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xbf\x7f", 2), contents);
 }
 TEST_F(Append, LEB128_n0x7f) {
   section.LEB128(-0x7f);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x81\x7f", 2), contents);
 }
 TEST_F(Append, LEB128_n0x80) {
   section.LEB128(-0x80);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\x7f", 2), contents);
 }
 TEST_F(Append, LEB128_n0x2000) {
   section.LEB128(-0x2000);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\x40", 2), contents);
 }
 TEST_F(Append, LEB128_n0x2001) {
   section.LEB128(-0x2001);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xff\xbf\x7f", 3), contents);
 }
 TEST_F(Append,ULEB128_0) {
   section.ULEB128(0);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\0", 1), contents);
 }
 TEST_F(Append,ULEB128_1) {
   section.ULEB128(1);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x01", 1), contents);
 }
 TEST_F(Append,ULEB128_0x3f) {
   section.ULEB128(0x3f);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x3f", 1), contents);
 }
 TEST_F(Append,ULEB128_0x40) {
   section.ULEB128(0x40);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x40", 1), contents);
 }
 TEST_F(Append,ULEB128_0x7f) {
   section.ULEB128(0x7f);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x7f", 1), contents);
 }
 TEST_F(Append,ULEB128_0x80) {
   section.ULEB128(0x80);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\x01", 2), contents);
 }
 TEST_F(Append,ULEB128_0xff) {
   section.ULEB128(0xff);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xff\x01", 2), contents);
 }
 TEST_F(Append,ULEB128_0x100) {
   section.ULEB128(0x100);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\x02", 2), contents);
 }
 TEST_F(Append,ULEB128_0x1fff) {
   section.ULEB128(0x1fff);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xff\x3f", 2), contents);
 }
 TEST_F(Append,ULEB128_0x2000) {
   section.ULEB128(0x2000);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\x40", 2), contents);
 }
 TEST_F(Append,ULEB128_0x3fff) {
   section.ULEB128(0x3fff);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xff\x7f", 2), contents);
 }
 TEST_F(Append,ULEB128_0x4000) {
   section.ULEB128(0x4000);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\x80\x01", 3), contents);
 }
 TEST_F(Append,ULEB128_12857) {
   section.ULEB128(12857);
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\xb9\x64", 2), contents);
 }
 TEST_F(Append, LEBChain) {
   section.LEB128(-0x80).ULEB128(12857).Append("*");
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(string("\x80\x7f\xb9\x64*", 5), contents);
 }
 class GetContents: public SectionFixture, public Test { };
 TEST_F(GetContents, Undefined) {
   Label l;
   section.Append(kLittleEndian, 8, l);
   ASSERT_FALSE(section.GetContents(&contents));
 }
 TEST_F(GetContents, ClearsContents) {
   section.Append((size_t) 10, '*');
   EXPECT_EQ(10U, section.Size());
   EXPECT_TRUE(section.GetContents(&contents));
   EXPECT_EQ(0U, section.Size());
 }
 TEST_F(GetContents, ClearsReferences) {
   Label l;
   section.Append(kBigEndian, 1, l);
   l = 42;
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_BYTES(contents, I1(42));
   ASSERT_TRUE(section.GetContents(&contents)); // should not die
 }
 class Miscellanea: public SectionFixture, public Test { };
 TEST_F(Miscellanea, Clear) {
   section.Append("howdy");
   Label l;
   section.L32(l);
   EXPECT_EQ(9U, section.Size());
   section.Clear();
   EXPECT_EQ(0U, section.Size());
   l = 0x8d231bf0U;
   ASSERT_TRUE(section.GetContents(&contents)); // should not die
 }
 TEST_F(Miscellanea, Align) {
   section.Append("*");
   EXPECT_EQ(1U, section.Size());
   section.Align(4).Append("*");
   EXPECT_EQ(5U, section.Size());
   section.Append("*").Align(2);
   EXPECT_EQ(6U, section.Size());
 }
 TEST_F(Miscellanea, AlignPad) {
   section.Append("*");
   EXPECT_EQ(1U, section.Size());
   section.Align(4, ' ').Append("*");
   EXPECT_EQ(5U, section.Size());
   section.Append("*").Align(2, ' ');
   EXPECT_EQ(6U, section.Size());
   ASSERT_TRUE(section.GetContents(&contents));
   ASSERT_EQ(string("*   **"), contents);
 }
 TEST_F(Miscellanea, StartHereMark) {
   Label m;
   section.Append(42, ' ').Mark(&m).Append(13, '+');
   EXPECT_EQ(42U, m - section.start());
   EXPECT_EQ(42U + 13U, section.Here() - section.start());
   EXPECT_FALSE(section.start().IsKnownConstant());
   EXPECT_FALSE(m.IsKnownConstant());
   EXPECT_FALSE(section.Here().IsKnownConstant());
 }
 TEST_F(Miscellanea, Endianness) {
   section.set_endianness(kBigEndian);
   EXPECT_EQ(kBigEndian, section.endianness());
   section.set_endianness(kLittleEndian);
   EXPECT_EQ(kLittleEndian, section.endianness());
 }

The Tor Browser / annotate

toolkit/crashreporter/google-breakpad/src/common/test_assembler_unittest.cc@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/test_assembler_unittest.cc