See if splitting is causing the mismatch output issues in tests

src/DiagnosticsManager.ts

@@ -19,7 +19,7 @@ import stripAnsi = require("strip-ansi");
 import configuration from "./configuration";
 import { SwiftExecution } from "./tasks/SwiftExecution";
 import { WorkspaceContext } from "./WorkspaceContext";
-import { checkIfBuildComplete } from "./utilities/tasks";
+import { checkIfBuildComplete, lineBreakRegex } from "./utilities/tasks";
 
 interface ParsedDiagnostic {
     uri: string;
@@ -278,7 +278,7 @@ export class DiagnosticsManager implements vscode.Disposable {
             disposables.push(
                 swiftExecution.onDidWrite(data => {
                     const sanitizedData = (remainingData || "") + stripAnsi(data);
-                    const lines = sanitizedData.split(/\r\n|\n|\r/gm);
+                    const lines = sanitizedData.split(lineBreakRegex);
                     // If ends with \n then will be "" and there's no affect.
                     // Otherwise want to keep remaining data to pre-pend next write
                     remainingData = lines.pop();

src/SwiftPackage.ts

@@ -20,6 +20,7 @@ import { isPathInsidePath } from "./utilities/filesystem";
 import { SwiftToolchain } from "./toolchain/toolchain";
 import { BuildFlags } from "./toolchain/BuildFlags";
 import { SwiftOutputChannel } from "./ui/SwiftOutputChannel";
+import { lineBreakRegex } from "./utilities/tasks";
 
 /** Swift Package Manager contents */
 interface PackageContents {
@@ -313,7 +314,7 @@ export class SwiftPackage {
                 cwd: folder.fsPath,
             });
             const plugins: PackagePlugin[] = [];
-            const lines = stdout.split("\n").map(item => item.trim());
+            const lines = stdout.split(lineBreakRegex).map(item => item.trim());
             for (const line of lines) {
                 // ‘generate-documentation’ (plugin ‘Swift-DocC’ in package ‘SwiftDocCPlugin’)
                 const pluginMatch = /^‘(.*)’ \(plugin ‘(.*)’ in package ‘(.*)’\)/.exec(line);

src/TestExplorer/TestParsers/SwiftTestingOutputParser.ts

@@ -24,6 +24,7 @@ import { ITestRunState } from "./TestRunState";
 import { TestClass } from "../TestDiscovery";
 import { sourceLocationToVSCodeLocation } from "../../utilities/utilities";
 import { exec } from "child_process";
+import { lineBreakRegex } from "../../utilities/tasks";
 
 // All events produced by a swift-testing run will be one of these three types.
 // Detailed information about swift-testing's JSON schema is available here:
@@ -235,7 +236,7 @@ export class SwiftTestingOutputParser {
      * @param chunk A chunk of stdout emitted during a test run.
      */
     public parseStdout(chunk: string, runState: ITestRunState) {
-        for (const line of chunk.split("\n")) {
+        for (const line of chunk.split(lineBreakRegex)) {
             if (line.trim().length > 0) {
                 runState.recordOutput(undefined, `${line}\r\n`);
             }

src/TestExplorer/TestParsers/XCTestOutputParser.ts

@@ -17,6 +17,7 @@ import { sourceLocationToVSCodeLocation } from "../../utilities/utilities";
 import { MarkdownString, Location } from "vscode";
 // eslint-disable-next-line @typescript-eslint/no-require-imports
 import stripAnsi = require("strip-ansi");
+import { lineBreakRegex } from "../../utilities/tasks";
 
 /** Regex for parsing XCTest output */
 interface TestRegex {
@@ -190,7 +191,7 @@ export class XCTestOutputParser implements IXCTestOutputParser {
         // which we don't care about.
         const output = process.platform === "win32" ? stripAnsi(rawOutput) : rawOutput;
         const output2 = output.replace(/\r\n/g, "\n");
-        const lines = output2.split("\n");
+        const lines = output2.split(lineBreakRegex);
         if (runState.excess) {
             lines[0] = runState.excess + lines[0];
         }

src/process-list/BaseProcessList.ts

@@ -15,6 +15,7 @@
 import * as util from "util";
 import * as child_process from "child_process";
 import { Process, ProcessList } from ".";
+import { lineBreakRegex } from "../utilities/tasks";
 
 const exec = util.promisify(child_process.execFile);
 
@@ -46,7 +47,7 @@ export abstract class BaseProcessList implements ProcessList {
             maxBuffer: 10 * 1024 * 1024, // Increase the max buffer size to 10Mb
         });
         const parser = this.createParser();
-        return (await execCommand).stdout.split("\n").flatMap(line => {
+        return (await execCommand).stdout.split(lineBreakRegex).flatMap(line => {
             const process = parser(line.toString());
             if (!process || process.id === execCommand.child.pid) {
                 return [];

src/toolchain/toolchain.ts

@@ -25,6 +25,7 @@ import { Version } from "../utilities/version";
 import { BuildFlags } from "./BuildFlags";
 import { Sanitizer } from "./Sanitizer";
 import { SwiftlyConfig } from "./ToolchainVersion";
+import { lineBreakRegex } from "../utilities/tasks";
 
 /**
  * Contents of **Info.plist** on Windows.
@@ -235,7 +236,8 @@ export class SwiftToolchain {
             execFile("mdfind", [`kMDItemCFBundleIdentifier == 'com.apple.dt.Xcode'`]),
             this.getXcodeDeveloperDir(),
         ]);
-        const spotlightXcodes = mdfindOutput.length > 0 ? mdfindOutput.trimEnd().split("\n") : [];
+        const spotlightXcodes =
+            mdfindOutput.length > 0 ? mdfindOutput.trimEnd().split(lineBreakRegex) : [];
         const selectedXcode = this.getXcodeDirectory(xcodeDeveloperDir);
 
         // Combine the results from both commands
@@ -933,7 +935,7 @@ export class SwiftToolchain {
             }
             const { stdout } = await execSwift(["--version"], { swiftExecutable });
             return {
-                compilerVersion: stdout.split("\n", 1)[0],
+                compilerVersion: stdout.split(lineBreakRegex, 1)[0],
                 paths: { runtimeLibraryPaths: [""] },
             };
         } catch {

src/ui/SwiftBuildStatus.ts

@@ -18,7 +18,7 @@ import * as vscode from "vscode";
 import configuration, { ShowBuildStatusOptions } from "../configuration";
 import { RunningTask, StatusItem } from "./StatusItem";
 import { SwiftExecution } from "../tasks/SwiftExecution";
-import { checkIfBuildComplete } from "../utilities/tasks";
+import { checkIfBuildComplete, lineBreakRegex } from "../utilities/tasks";
 
 /**
  * Progress of `swift` build, parsed from the
@@ -121,7 +121,7 @@ export class SwiftBuildStatus implements vscode.Disposable {
             // We'll process data one line at a time, in reverse order
             // since the latest interesting message is all we need to
             // be concerned with
-            const lines = sanitizedData.split(/\r\n|\n|\r/gm).reverse();
+            const lines = sanitizedData.split(lineBreakRegex).reverse();
             for (const line of lines) {
                 if (checkIfBuildComplete(line)) {
                     update(name);

src/utilities/tasks.ts

@@ -14,6 +14,8 @@
 import * as path from "path";
 import * as vscode from "vscode";
 
+export const lineBreakRegex = /\r\n|\n|\r/gm;
+
 export function resolveTaskCwd(task: vscode.Task, cwd?: string): string | undefined {
     const scopeWorkspaceFolder = getScopeWorkspaceFolder(task);
     if (!cwd) {

test/integration-tests/testexplorer/XCTestOutputParser.test.ts

@@ -24,6 +24,7 @@ import { sourceLocationToVSCodeLocation } from "../../../src/utilities/utilities
 import { TestXUnitParser } from "../../../src/TestExplorer/TestXUnitParser";
 import { activateExtensionForSuite } from "../utilities/testutilities";
 import { SwiftOutputChannel } from "../../../src/ui/SwiftOutputChannel";
+import { lineBreakRegex } from "../../../src/utilities/tasks";
 
 enum ParserTestKind {
     Regular = "Regular Test Run",
@@ -33,7 +34,7 @@ enum ParserTestKind {
 suite("XCTestOutputParser Suite", () => {
     function inputToTestOutput(input: string) {
         return input
-            .split("\n")
+            .split(lineBreakRegex)
             .slice(0, -1)
             .map(line => `${line}\r\n`);
     }