found duplicate test name '%s' in 'verify' test cases. 'veri

Error message

found duplicate test name '%s' in 'verify' test cases. 'verify' test case names must be unique

What it means

Verify test case names must be unique across all pipelines in the run context, since Skaffold keys results and logs by test name. validateVerifyTests collects Verify test cases from every pipeline and errors when a name appears more than once.

Source

Thrown at pkg/skaffold/schema/validation/validation.go:720

	}

	return nil
}

// validateVerifyTests
// - makes sure that each test name is unique
// - makes sure that each container name is unique
func validateVerifyTests(runCtx *runcontext.RunContext) []error {
	var errs []error
	seenTestName := map[string]bool{}
	seenContainerName := map[string]bool{}
	tcs := []*latest.VerifyTestCase{}
	for _, pipeline := range runCtx.GetPipelines() {
		tcs = append(tcs, pipeline.Verify...)
	}
	for _, tc := range tcs {
		if _, ok := seenTestName[tc.Name]; ok {
			errs = append(errs, fmt.Errorf("found duplicate test name '%s' in 'verify' test cases. 'verify' test case names must be unique", tc.Name))
		}
		if _, ok := seenContainerName[tc.Container.Name]; ok {
			errs = append(errs, fmt.Errorf("found duplicate container name '%s' in 'verify' test cases. 'verify' container names must be unique", tc.Container.Name))
		}
		seenTestName[tc.Name] = true
		seenContainerName[tc.Container.Name] = true
	}
	return errs
}

// validateCustomActions
// - makes sure that each custom action name is unique
// - makes sure that each custom action container name is unique
func validateCustomActionsNames(runCtx *runcontext.RunContext) (errs []error) {
	acs := []latest.Action{}
	seenAcs := map[string]bool{}
	seenConts := map[string]bool{}

View on GitHub (pinned to a1189de023)

Solutions

Rename one of the duplicate verify test cases so all names are unique
Remove the redundant test case if it is an accidental duplicate
Check all included skaffold configs for name collisions when using multiple configs

Example fix

# before
verify:
  - name: integration-test
    container: { name: tester, image: gcr.io/tester }
  - name: integration-test
    container: { name: tester2, image: gcr.io/tester2 }
# after
verify:
  - name: integration-test
    container: { name: tester, image: gcr.io/tester }
  - name: smoke-test
    container: { name: tester2, image: gcr.io/tester2 }

Defensive patterns

Strategy: validation

Validate before calling

const names = configs.flatMap(c => c.verify ?? []).map(t => t.name);
const dupes = names.filter((n, i) => names.indexOf(n) !== i);
if (dupes.length) throw new Error(`duplicate verify test names: ${[...new Set(dupes)].join(', ')}`);

Try / catch

try {
  await skaffold.verify(config);
} catch (e) {
  if (/duplicate test name .* in 'verify'/.test(e.message)) {
    console.error('Rename the duplicated verify test case');
  } else throw e;
}

Prevention

Give verify test cases descriptive, unique names (e.g. module-prefixed)
Check names across all included configs when composing multi-config projects
Run skaffold diagnose in CI to catch duplicate names before deploys

When it happens

Trigger: Two or more entries in verify (across any pipelines returned by runCtx.GetPipelines()) share the same `name:` field, processed via ProcessWithRunContext.

Common situations: Copy-pasting a verify test case and forgetting to rename it, or multi-config (multi-module) projects where each config defines a same-named verify test.

Related errors

AI-assisted analysis of GoogleContainerTools/skaffold@a1189de023 (2026-09-05). Data as JSON: /api/errors/0e9a71d62466449b. Report an issue: GitHub.