Apex test command throws vague error if no tests are found

[zenibako]

Expected result

Running sf apex run test --synchronous -c should pass and not exit the shell.

Actual result

Running sf apex run test --synchronous -c throws the below error and exits the shell with code 1:

Error (1): Always provide a classes, suites, tests, or testLevel property.

Additional information

This is easy to recreate with a fresh project (sf project generate) and scratch org (sf org create scratch --set-default --definition-file config/project-scratch-def.json).

System Information

CLI:
@salesforce/cli/2.76.7 darwin-arm64 node-v22.13.1

Plugin Version:
@oclif/plugin-autocomplete 3.2.20 (core)
@oclif/plugin-commands 4.1.19 (core)
@oclif/plugin-help 6.2.24 (core)
@oclif/plugin-not-found 3.2.40 (core)
@oclif/plugin-plugins 5.4.30 (core)
@oclif/plugin-search 1.2.20 (core)
@oclif/plugin-update 4.6.30 (core)
@oclif/plugin-version 2.2.23 (core)
@oclif/plugin-warn-if-update-available 3.1.32 (core)
@oclif/plugin-which 3.2.28 (core)
@salesforce/cli 2.76.7 (core)
apex 3.6.8 (core)
api 1.3.3 (core)
auth 3.6.92 (core)
code-analyzer 5.0.0-beta.1 (user)
data 4.0.9 (core)
deploy-retrieve 3.18.0 (core)
dev 2.5.1 (user)
info 3.4.37 (core)
limits 3.3.45 (core)
marketplace 1.3.7 (core)
org 5.2.29 (core)
packaging 2.9.16 (core)
schema 3.3.49 (core)
settings 2.4.14 (core)
sobject 1.4.50 (core)
telemetry 3.6.32 (core)
templates 56.3.37 (core)
trust 3.7.61 (core)
user 3.6.8 (core)
@salesforce/sfdx-scanner 4.9.0 (user)
deployment-validator 1.0.1 (link) /Users/chandleranderson/Projects/training-lab-plugin

SF ENV. VARS.
SF_USE_GENERIC_UNIX_KEYCHAIN,true
SF_BINPATH,/Users/chandleranderson/.local/share/sf/client/bin/sf
SF_BETA_TRACK_FILE_MOVES,true
SF_AC_ZSH_SETUP_PATH,/Users/chandleranderson/Library/Caches/sf/autocomplete/zsh_setup
SF_AUTOUPDATE_DISABLE,true
SF_DISABLE_AUTOUPDATE,true
SF_UPDATE_INSTRUCTIONS,Use "npm update --global @salesforce/cli" to update npm-based installations.

Windows: false
Shell: zsh
Channel: stable

---

Diagnostics

✅ pass - salesforcedx plugin isn’t installed
❌ fail - you have at least one linked plugin
✅ pass - [@salesforce/plugin-trust] can ping: https://registry.npmjs.org
✅ pass - [@salesforce/plugin-trust] can ping: https://registry.yarnpkg.com
✅ pass - [@salesforce/plugin-trust] can ping: https://registry.npmjs.org/
✅ pass - using latest or latest-rc CLI version
✅ pass - [@salesforce/plugin-deploy-retrieve] sourceApiVersion matches apiVersion
✅ pass - [@salesforce/plugin-deploy-retrieve] default target DevHub max apiVersion matches default target org max apiVersion
❌ warn - [@salesforce/plugin-deploy-retrieve] sourceApiVersion matches default target org max apiVersion
✅ pass - can access: https://test.salesforce.com
✅ pass - can access: https://appexchange.salesforce.com/services/data
✅ pass - can access: https://developer.salesforce.com/media/salesforce-cli/sf/channels/stable/sf-win32-x64-buildmanifest
❌ fail - [@salesforce/plugin-auth] CLI supports v2 crypto
✅ pass - [@salesforce/plugin-auth] CLI using stable v1 crypto

[cristiand391]

fyi @shetzel: the error msg comes from the server:
forcedotcom/salesforcedx-apex#306 (comment)

[git2gus]

This issue has been linked to a new work item: W-17866064