deac757bc7
Case statements have a list of statements associated with them, but are not blocks, and were hence not fixed-up correctly for code coverage. This CL also applies the fix-up to the "body" of case statements, in this way removing ranges reported as uncovered between the final break/return in a case and the next case (or end of function). Drive-by: Add optional pretty printing to code coverage test results. Change-Id: I5f4002d4e17b7253ed516d99f7c389ab2264be10 Bug: v8:9705 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1798426 Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Cr-Commit-Position: refs/heads/master@{#63719}
65 lines
2.0 KiB
JavaScript
65 lines
2.0 KiB
JavaScript
// Copyright 2017 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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// Flags: --allow-natives-syntax
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let TestCoverage;
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let TestCoverageNoGC;
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let nop;
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let gen;
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!function() {
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function GetCoverage(source) {
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for (var script of %DebugCollectCoverage()) {
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if (script.script === source) return script;
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}
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return undefined;
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};
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function TestCoverageInternal(
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name, source, expectation, collect_garbage, prettyPrintResults) {
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source = source.trim();
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eval(source);
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if (collect_garbage) %CollectGarbage("collect dead objects");
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var covfefe = GetCoverage(source);
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var stringified_result = JSON.stringify(covfefe);
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var stringified_expectation = JSON.stringify(expectation);
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const mismatch = stringified_result != stringified_expectation;
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if (mismatch) {
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console.log(stringified_result.replace(/[}],[{]/g, "},\n {"));
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}
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if (prettyPrintResults) {
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console.log("=== Coverage Expectation ===")
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for (const {start,end,count} of expectation) {
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console.log(`Range [${start}, ${end}) (count: ${count})`);
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console.log(source.substring(start, end));
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}
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console.log("=== Coverage Results ===")
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for (const {start,end,count} of covfefe) {
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console.log(`Range [${start}, ${end}) (count: ${count})`);
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console.log(source.substring(start, end));
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}
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console.log("========================")
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}
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assertEquals(stringified_expectation, stringified_result, name + " failed");
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};
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TestCoverage = function(name, source, expectation, prettyPrintResults) {
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TestCoverageInternal(name, source, expectation, true, prettyPrintResults);
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};
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TestCoverageNoGC = function(name, source, expectation, prettyPrintResults) {
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TestCoverageInternal(name, source, expectation, false, prettyPrintResults);
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};
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nop = function() {};
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gen = function*() {
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yield 1;
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yield 2;
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yield 3;
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};
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}();
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