From 290e98650827f8505aa98d8f334d941df4ca9e19 Mon Sep 17 00:00:00 2001
From: Mike Donnalley <mdonnalley@salesforce.com>
Date: Thu, 2 Nov 2023 08:23:11 -0600
Subject: [PATCH] fix: cache process.cwd()

---
 src/execCmd.ts     | 16 ++++++++++++++--
 src/testSession.ts | 16 +++++++---------
 2 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/src/execCmd.ts b/src/execCmd.ts
index e024b931..904de0e3 100644
--- a/src/execCmd.ts
+++ b/src/execCmd.ts
@@ -122,16 +122,17 @@ export const determineExecutable = (cli: CLI = 'inherit'): string => {
   const debug = Debug('testkit:determineExecutable');
 
   let bin: string | undefined;
+  const root = Cache.getInstance().get('pluginDir') ?? process.cwd();
   switch (cli) {
     case 'inherit':
       bin =
         env.getString('TESTKIT_EXECUTABLE_PATH') ??
-        pathJoin(process.cwd(), 'bin', process.platform === 'win32' ? 'run.cmd' : 'run.js');
+        pathJoin(root, 'bin', process.platform === 'win32' ? 'run.cmd' : 'run.js');
       break;
     case 'dev':
       bin =
         env.getString('TESTKIT_EXECUTABLE_PATH') ??
-        pathJoin(process.cwd(), 'bin', process.platform === 'win32' ? 'dev.cmd' : 'dev.js');
+        pathJoin(root, 'bin', process.platform === 'win32' ? 'dev.cmd' : 'dev.js');
       break;
     case 'sfdx':
       bin = cli;
@@ -452,3 +453,14 @@ export async function execInteractiveCmd(
     });
   });
 }
+
+export class Cache extends Map<string, string> {
+  private static instance: Cache;
+
+  public static getInstance(): Cache {
+    if (!Cache.instance) {
+      Cache.instance = new Cache();
+    }
+    return Cache.instance;
+  }
+}
diff --git a/src/testSession.ts b/src/testSession.ts
index 729a150a..3e88c416 100644
--- a/src/testSession.ts
+++ b/src/testSession.ts
@@ -19,7 +19,7 @@ import { zipDir } from './zip';
 
 import { TestProject, TestProjectOptions } from './testProject';
 import { DevhubAuthStrategy, getAuthStrategy, testkitHubAuth, transferExistingAuthToEnv } from './hubAuth';
-import { determineExecutable, JsonOutput } from './execCmd';
+import { Cache, JsonOutput } from './execCmd';
 
 export type ScratchOrgConfig = {
   /**
@@ -134,6 +134,12 @@ export class TestSession<T extends TestSessionOptions = TestSessionOptions> exte
     this.debug = debug('testkit:session');
     this.zipDir = zipDir;
 
+    // Cache the current process.cwd() so that we can use it when resolving
+    // the bin/run.js executable path. This is necessary because setting the
+    // project option changes the process.cwd() to the project dir, which
+    // doesn't have bin/run.js
+    Cache.getInstance().set('pluginDir', process.cwd());
+
     this.createdDate = new Date();
     this.id = genUniqueString(`${this.createdDate.valueOf()}%s`);
     this.retries = env.getNumber('TESTKIT_SETUP_RETRIES', this.options.retries ?? 0);
@@ -156,14 +162,6 @@ export class TestSession<T extends TestSessionOptions = TestSessionOptions> exte
         projectDir = this.project.dir;
       }
 
-      // The default bin/run.js in execCmd will no longer resolve properly when
-      // a test project is used since process.cwd is changed.  If the
-      // TESTKIT_EXECUTABLE_PATH env var is not being used, then set it
-      // to use the bin/run.js from the cwd now.
-      if (!env.getString('TESTKIT_EXECUTABLE_PATH')) {
-        env.setString('TESTKIT_EXECUTABLE_PATH', determineExecutable('inherit'));
-      }
-
       this.stubCwd(projectDir);
     }