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src/goTest: fix multifile suite test fails to debug
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I have resumed the pull request #2415 and added the missing tests.

Here is the original description:

Collect a packages suites and maps their name with the caller function. This mapping is
used to fix a bug where vscode-go was formatting wrong arguments for dlv (-test.run).

Fixes #2414

Change-Id: Id6ac5d153fa1dbcdb7591b2bd0ee78bfa95686c6
GitHub-Last-Rev: 0fa9525
GitHub-Pull-Request: #3128
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/555676
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Auto-Submit: Hyang-Ah Hana Kim <hyangah@gmail.com>
Commit-Queue: Hyang-Ah Hana Kim <hyangah@gmail.com>
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@Cr4zySheep @gopherbot
Cr4zySheep authored and gopherbot committed Feb 12, 2024
1 parent 5b0d6db commit 7bfbcaf
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Showing 8 changed files with 325 additions and 35 deletions.
31 changes: 19 additions & 12 deletions extension/src/goTest.ts
View file
Original file line number Diff line number Diff line change
Expand Up @@ -18,10 +18,12 @@ import {
getBenchmarkFunctions,
getTestFlags,
getTestFunctionDebugArgs,
getTestFunctions,
getTestFunctionsAndTestSuite,
getTestTags,
goTest,
TestConfig
TestConfig,
SuiteToTestMap,
getTestFunctions
} from './testUtils';

// lastTestConfig holds a reference to the last executed TestConfig which allows
Expand Down Expand Up @@ -52,8 +54,11 @@ async function _testAtCursor(
throw new NotFoundError('No tests found. Current file is not a test file.');
}

const getFunctions = cmd === 'benchmark' ? getBenchmarkFunctions : getTestFunctions;
const testFunctions = (await getFunctions(goCtx, editor.document)) ?? [];
const { testFunctions, suiteToTest } = await getTestFunctionsAndTestSuite(
cmd === 'benchmark',
goCtx,
editor.document
);
// We use functionName if it was provided as argument
// Otherwise find any test function containing the cursor.
const testFunctionName =
Expand All @@ -67,9 +72,9 @@ async function _testAtCursor(
await editor.document.save();

if (cmd === 'debug') {
return debugTestAtCursor(editor, testFunctionName, testFunctions, goConfig);
return debugTestAtCursor(editor, testFunctionName, testFunctions, suiteToTest, goConfig);
} else if (cmd === 'benchmark' || cmd === 'test') {
return runTestAtCursor(editor, testFunctionName, testFunctions, goConfig, cmd, args);
return runTestAtCursor(editor, testFunctionName, testFunctions, suiteToTest, goConfig, cmd, args);
} else {
throw new Error(`Unsupported command: ${cmd}`);
}
Expand All @@ -92,7 +97,7 @@ async function _subTestAtCursor(
}

await editor.document.save();
const testFunctions = (await getTestFunctions(goCtx, editor.document)) ?? [];
const { testFunctions, suiteToTest } = await getTestFunctionsAndTestSuite(false, goCtx, editor.document);
// We use functionName if it was provided as argument
// Otherwise find any test function containing the cursor.
const currentTestFunctions = testFunctions.filter((func) => func.range.contains(editor.selection.start));
Expand Down Expand Up @@ -142,9 +147,9 @@ async function _subTestAtCursor(
const escapedName = escapeSubTestName(testFunctionName, subTestName);

if (cmd === 'debug') {
return debugTestAtCursor(editor, escapedName, testFunctions, goConfig);
return debugTestAtCursor(editor, escapedName, testFunctions, suiteToTest, goConfig);
} else if (cmd === 'test') {
return runTestAtCursor(editor, escapedName, testFunctions, goConfig, cmd, args);
return runTestAtCursor(editor, escapedName, testFunctions, suiteToTest, goConfig, cmd, args);
} else {
throw new Error(`Unsupported command: ${cmd}`);
}
Expand All @@ -160,7 +165,7 @@ async function _subTestAtCursor(
export function testAtCursor(cmd: TestAtCursorCmd): CommandFactory {
return (ctx, goCtx) => (args: any) => {
const goConfig = getGoConfig();
_testAtCursor(goCtx, goConfig, cmd, args).catch((err) => {
return _testAtCursor(goCtx, goConfig, cmd, args).catch((err) => {
if (err instanceof NotFoundError) {
vscode.window.showInformationMessage(err.message);
} else {
Expand Down Expand Up @@ -202,13 +207,14 @@ async function runTestAtCursor(
editor: vscode.TextEditor,
testFunctionName: string,
testFunctions: vscode.DocumentSymbol[],
suiteToTest: SuiteToTestMap,
goConfig: vscode.WorkspaceConfiguration,
cmd: TestAtCursorCmd,
args: any
) {
const testConfigFns = [testFunctionName];
if (cmd !== 'benchmark' && extractInstanceTestName(testFunctionName)) {
testConfigFns.push(...findAllTestSuiteRuns(editor.document, testFunctions).map((t) => t.name));
testConfigFns.push(...findAllTestSuiteRuns(editor.document, testFunctions, suiteToTest).map((t) => t.name));
}

const isMod = await isModSupported(editor.document.uri);
Expand Down Expand Up @@ -259,11 +265,12 @@ export async function debugTestAtCursor(
editorOrDocument: vscode.TextEditor | vscode.TextDocument,
testFunctionName: string,
testFunctions: vscode.DocumentSymbol[],
suiteToFunc: SuiteToTestMap,
goConfig: vscode.WorkspaceConfiguration,
sessionID?: string
) {
const doc = 'document' in editorOrDocument ? editorOrDocument.document : editorOrDocument;
const args = getTestFunctionDebugArgs(doc, testFunctionName, testFunctions);
const args = getTestFunctionDebugArgs(doc, testFunctionName, testFunctions, suiteToFunc);
const tags = getTestTags(goConfig);
const buildFlags = tags ? ['-tags', tags] : [];
const flagsFromConfig = getTestFlags(goConfig);
Expand Down
12 changes: 8 additions & 4 deletions extension/src/goTest/run.ts
View file
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ import vscode = require('vscode');
import { outputChannel } from '../goStatus';
import { isModSupported } from '../goModules';
import { getGoConfig } from '../config';
import { getBenchmarkFunctions, getTestFlags, getTestFunctions, goTest, GoTestOutput } from '../testUtils';
import { getTestFlags, getTestFunctionsAndTestSuite, goTest, GoTestOutput } from '../testUtils';
import { GoTestResolver } from './resolve';
import { dispose, forEachAsync, GoTest, Workspace } from './utils';
import { GoTestProfiler, ProfilingOptions } from './profile';
Expand Down Expand Up @@ -161,8 +161,11 @@ export class GoTestRunner {
await doc.save();

const goConfig = getGoConfig(test.uri);
const getFunctions = kind === 'benchmark' ? getBenchmarkFunctions : getTestFunctions;
const testFunctions = await getFunctions(this.goCtx, doc, token);
const { testFunctions, suiteToTest } = await getTestFunctionsAndTestSuite(
kind === 'benchmark',
this.goCtx,
doc
);

// TODO Can we get output from the debug session, in order to check for
// run/pass/fail events?
Expand Down Expand Up @@ -191,7 +194,8 @@ export class GoTestRunner {

const run = this.ctrl.createTestRun(request, `Debug ${name}`);
if (!testFunctions) return;
const started = await debugTestAtCursor(doc, escapeSubTestName(name), testFunctions, goConfig, id);
const started = await debugTestAtCursor(doc, escapeSubTestName(name), testFunctions, suiteToTest, goConfig, id);

if (!started) {
subs.forEach((s) => s.dispose());
run.end();
Expand Down
145 changes: 129 additions & 16 deletions extension/src/testUtils.ts
View file
Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ import cp = require('child_process');
import path = require('path');
import util = require('util');
import vscode = require('vscode');
import { promises as fs } from 'fs';

import { applyCodeCoverageToAllEditors } from './goCover';
import { toolExecutionEnvironment } from './goEnv';
Expand Down Expand Up @@ -50,6 +51,7 @@ const testMethodRegex = /^\(([^)]+)\)\.(Test|Test\P{Ll}.*)$/u;
const benchmarkRegex = /^Benchmark$|^Benchmark\P{Ll}.*/u;
const fuzzFuncRegx = /^Fuzz$|^Fuzz\P{Ll}.*/u;
const testMainRegex = /TestMain\(.*\*testing.M\)/;
const runTestSuiteRegex = /^\s*suite\.Run\(\w+,\s*(?:&?(?<type1>\w+)\{|new\((?<type2>\w+)\))/mu;

/**
* Input to goTest.
Expand Down Expand Up @@ -153,27 +155,76 @@ export async function getTestFunctions(
doc: vscode.TextDocument,
token?: vscode.CancellationToken
): Promise<vscode.DocumentSymbol[] | undefined> {
const result = await getTestFunctionsAndTestifyHint(goCtx, doc, token);
return result.testFunctions;
}

/**
* Returns all Go unit test functions in the given source file and an hint if testify is used.
*
* @param doc A Go source file
*/
export async function getTestFunctionsAndTestifyHint(
goCtx: GoExtensionContext,
doc: vscode.TextDocument,
token?: vscode.CancellationToken
): Promise<{ testFunctions?: vscode.DocumentSymbol[]; foundTestifyTestFunction?: boolean }> {
const documentSymbolProvider = GoDocumentSymbolProvider(goCtx, true);
const symbols = await documentSymbolProvider.provideDocumentSymbols(doc);
if (!symbols || symbols.length === 0) {
return;
return {};
}
const symbol = symbols[0];
if (!symbol) {
return;
return {};
}
const children = symbol.children;

// With gopls dymbol provider symbols, the symbols have the imports of all
// With gopls symbol provider, the symbols have the imports of all
// the package, so suite tests from all files will be found.
const testify = importsTestify(symbols);
return children.filter(

const allTestFunctions = children.filter(
(sym) =>
(sym.kind === vscode.SymbolKind.Function || sym.kind === vscode.SymbolKind.Method) &&
sym.kind === vscode.SymbolKind.Function &&
// Skip TestMain(*testing.M) - see https://github.com/golang/vscode-go/issues/482
!testMainRegex.test(doc.lineAt(sym.range.start.line).text) &&
(testFuncRegex.test(sym.name) || fuzzFuncRegx.test(sym.name) || (testify && testMethodRegex.test(sym.name)))
(testFuncRegex.test(sym.name) || fuzzFuncRegx.test(sym.name))
);

const allTestMethods = testify
? children.filter((sym) => sym.kind === vscode.SymbolKind.Method && testMethodRegex.test(sym.name))
: [];

return {
testFunctions: allTestFunctions.concat(allTestMethods),
foundTestifyTestFunction: allTestMethods.length > 0
};
}

/**
* Returns all the Go test functions (or benchmark) from the given Go source file, and the associated test suites when testify is used.
*
* @param doc A Go source file
*/
export async function getTestFunctionsAndTestSuite(
isBenchmark: boolean,
goCtx: GoExtensionContext,
doc: vscode.TextDocument
): Promise<{ testFunctions: vscode.DocumentSymbol[]; suiteToTest: SuiteToTestMap }> {
if (isBenchmark) {
return {
testFunctions: (await getBenchmarkFunctions(goCtx, doc)) ?? [],
suiteToTest: {}
};
}

const { testFunctions, foundTestifyTestFunction } = await getTestFunctionsAndTestifyHint(goCtx, doc);

return {
testFunctions: testFunctions ?? [],
suiteToTest: foundTestifyTestFunction ? await getSuiteToTestMap(goCtx, doc) : {}
};
}

/**
Expand All @@ -199,17 +250,16 @@ export function extractInstanceTestName(symbolName: string): string {
export function getTestFunctionDebugArgs(
document: vscode.TextDocument,
testFunctionName: string,
testFunctions: vscode.DocumentSymbol[]
testFunctions: vscode.DocumentSymbol[],
suiteToFunc: SuiteToTestMap
): string[] {
if (benchmarkRegex.test(testFunctionName)) {
return ['-test.bench', '^' + testFunctionName + '$', '-test.run', 'a^'];
}
const instanceMethod = extractInstanceTestName(testFunctionName);
if (instanceMethod) {
const testFns = findAllTestSuiteRuns(document, testFunctions);
const testSuiteRuns = ['-test.run', `^${testFns.map((t) => t.name).join('|')}$`];
const testSuiteTests = ['-testify.m', `^${instanceMethod}$`];
return [...testSuiteRuns, ...testSuiteTests];
const testFns = findAllTestSuiteRuns(document, testFunctions, suiteToFunc);
return ['-test.run', `^${testFns.map((t) => t.name).join('|')}$/^${instanceMethod}$`];
} else {
return ['-test.run', `^${testFunctionName}$`];
}
Expand All @@ -222,12 +272,22 @@ export function getTestFunctionDebugArgs(
*/
export function findAllTestSuiteRuns(
doc: vscode.TextDocument,
allTests: vscode.DocumentSymbol[]
allTests: vscode.DocumentSymbol[],
suiteToFunc: SuiteToTestMap
): vscode.DocumentSymbol[] {
// get non-instance test functions
const testFunctions = allTests?.filter((t) => !testMethodRegex.test(t.name));
// filter further to ones containing suite.Run()
return testFunctions?.filter((t) => doc.getText(t.range).includes('suite.Run(')) ?? [];
const suites = allTests
// Find all tests with receivers.
?.map((e) => e.name.match(testMethodRegex))
.filter((e) => e?.length === 3)
// Take out receiever, strip leading *.
.map((e) => e && e[1].replace(/^\*/g, ''))
// Map receiver name to test that runs "suite.Run".
.map((e) => e && suiteToFunc[e])
// Filter out empty results.
.filter((e): e is vscode.DocumentSymbol => !!e);

// Dedup.
return [...new Set(suites)];
}

/**
Expand All @@ -254,6 +314,59 @@ export async function getBenchmarkFunctions(
return children.filter((sym) => sym.kind === vscode.SymbolKind.Function && benchmarkRegex.test(sym.name));
}

export type SuiteToTestMap = Record<string, vscode.DocumentSymbol>;

/**
* Returns a mapping between a package's function receivers to
* the test method that initiated them with "suite.Run".
*
* @param the URI of a Go source file.
* @return function symbols from all source files of the package, mapped by target suite names.
*/
export async function getSuiteToTestMap(
goCtx: GoExtensionContext,
doc: vscode.TextDocument,
token?: vscode.CancellationToken
) {
// Get all the package documents.
const packageDir = path.parse(doc.fileName).dir;
const packageContent = await fs.readdir(packageDir, { withFileTypes: true });
const packageFilenames = packageContent
// Only go files.
.filter((dirent) => dirent.isFile())
.map((dirent) => dirent.name)
.filter((name) => name.endsWith('.go'));
const packageDocs = await Promise.all(
packageFilenames.map((e) => path.join(packageDir, e)).map(vscode.workspace.openTextDocument)
);

const suiteToTest: SuiteToTestMap = {};
for (const packageDoc of packageDocs) {
const funcs = await getTestFunctions(goCtx, packageDoc, token);
if (!funcs) {
continue;
}

for (const func of funcs) {
const funcText = packageDoc.getText(func.range);

// Matches run suites of the types:
// type1: suite.Run(t, MySuite{
// type1: suite.Run(t, &MySuite{
// type2: suite.Run(t, new(MySuite)
const matchRunSuite = funcText.match(runTestSuiteRegex);
if (!matchRunSuite) {
continue;
}

const g = matchRunSuite.groups;
suiteToTest[g?.type1 || g?.type2 || ''] = func;
}
}

return suiteToTest;
}

/**
* go test -json output format.
* which is a subset of https://golang.org/cmd/test2json/#hdr-Output_Format
Expand Down
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