24a51e1eee
R=sigurds@chromium.org Bug: v8:9247 Change-Id: I25743f048e3e6cd22a18e003e77c8b78f147b630 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630680 Reviewed-by: Sigurd Schneider <sigurds@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#61836}
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/init/v8.h"
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#include "src/codegen/source-position-table.h"
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#include "src/objects/objects.h"
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#include "test/unittests/test-utils.h"
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namespace v8 {
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namespace internal {
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namespace interpreter {
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class SourcePositionTableTest : public TestWithIsolate {
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public:
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SourcePositionTableTest() = default;
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~SourcePositionTableTest() override = default;
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SourcePosition toPos(int offset) {
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return SourcePosition(offset, offset % 10 - 1);
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}
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};
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// Some random offsets, mostly at 'suspicious' bit boundaries.
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static int offsets[] = {0, 1, 2, 3, 4, 30, 31, 32,
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33, 62, 63, 64, 65, 126, 127, 128,
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129, 250, 1000, 9999, 12000, 31415926};
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TEST_F(SourcePositionTableTest, EncodeStatement) {
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SourcePositionTableBuilder builder;
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for (size_t i = 0; i < arraysize(offsets); i++) {
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builder.AddPosition(offsets[i], toPos(offsets[i]), true);
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}
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// To test correctness, we rely on the assertions in ToSourcePositionTable().
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// (Also below.)
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CHECK(!builder.ToSourcePositionTable(isolate()).is_null());
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}
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TEST_F(SourcePositionTableTest, EncodeStatementDuplicates) {
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SourcePositionTableBuilder builder;
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for (size_t i = 0; i < arraysize(offsets); i++) {
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builder.AddPosition(offsets[i], toPos(offsets[i]), true);
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builder.AddPosition(offsets[i], toPos(offsets[i] + 1), true);
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}
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// To test correctness, we rely on the assertions in ToSourcePositionTable().
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// (Also below.)
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CHECK(!builder.ToSourcePositionTable(isolate()).is_null());
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}
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TEST_F(SourcePositionTableTest, EncodeExpression) {
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SourcePositionTableBuilder builder;
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for (size_t i = 0; i < arraysize(offsets); i++) {
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builder.AddPosition(offsets[i], toPos(offsets[i]), false);
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}
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CHECK(!builder.ToSourcePositionTable(isolate()).is_null());
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}
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TEST_F(SourcePositionTableTest, EncodeAscending) {
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SourcePositionTableBuilder builder;
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int code_offset = 0;
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int source_position = 0;
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for (size_t i = 0; i < arraysize(offsets); i++) {
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code_offset += offsets[i];
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source_position += offsets[i];
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if (i % 2) {
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builder.AddPosition(code_offset, toPos(source_position), true);
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} else {
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builder.AddPosition(code_offset, toPos(source_position), false);
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}
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}
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// Also test negative offsets for source positions:
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for (size_t i = 0; i < arraysize(offsets); i++) {
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code_offset += offsets[i];
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source_position -= offsets[i];
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if (i % 2) {
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builder.AddPosition(code_offset, toPos(source_position), true);
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} else {
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builder.AddPosition(code_offset, toPos(source_position), false);
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}
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}
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CHECK(!builder.ToSourcePositionTable(isolate()).is_null());
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}
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} // namespace interpreter
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} // namespace internal
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} // namespace v8
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