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fix: return error for malformed --extension flag values#3852

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Ankitsinghsisodya wants to merge 2 commits into
knative:mainfrom
Ankitsinghsisodya:fix/extensionsmap-malformed-input
Open

fix: return error for malformed --extension flag values#3852
Ankitsinghsisodya wants to merge 2 commits into
knative:mainfrom
Ankitsinghsisodya:fix/extensionsmap-malformed-input

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@Ankitsinghsisodya
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Problem

extensionsMap() in cmd/invoke.go silently dropped any --extension value that did not contain =. The invocation proceeded with fewer extensions than the user specified, with no feedback — particularly confusing when debugging CloudEvent routing.

Changes

cmd/invoke.go

  • Changed extensionsMap() signature from map[string]string to (map[string]string, error).
  • Returns a descriptive error for any entry missing = (e.g. invalid --extension "badformat": must be in key=value format).
  • Renamed the shadowing local variable extensionsMapresult for clarity.
  • Updated the call site to propagate the error before constructing InvokeMessage.

cmd/invoke_test.go

  • TestInvokeExtensionsMapValid: verifies correct parsing including values that themselves contain = (e.g. base64 strings like foo=bar=baz).
  • TestInvokeExtensionsMapMalformed: verifies that a missing = produces an error rather than a silent drop.

Testing

go test ./cmd/... -run TestInvokeExtensionsMap

Copilot AI review requested due to automatic review settings May 25, 2026 17:55
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knative-prow Bot commented May 25, 2026

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Ankitsinghsisodya
Once this PR has been reviewed and has the lgtm label, please assign matzew for approval. For more information see the Code Review Process.

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@knative-prow knative-prow Bot requested review from dsimansk and jrangelramos May 25, 2026 17:55
@knative-prow knative-prow Bot added size/M 🤖 PR changes 30-99 lines, ignoring generated files. needs-ok-to-test 🤖 Needs an org member to approve testing labels May 25, 2026
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knative-prow Bot commented May 25, 2026

Hi @Ankitsinghsisodya. Thanks for your PR.

I'm waiting for a knative member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

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- Added `extensionsMap` method to `invokeConfig` to parse key=value extensions and return a map.
- Introduced error handling for malformed extension entries.
- Created unit tests `TestInvokeExtensionsMapValid` and `TestInvokeExtensionsMapMalformed` to validate the parsing logic and error conditions.

This enhances the robustness of the extension handling in the invoke command.
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Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds strict parsing/validation for --extension CLI entries so malformed values error out instead of being silently ignored, and introduces tests for the new behavior.

Changes:

  • Parse Extensions as key=value with strings.SplitN(..., 2) and return an error when malformed.
  • Wire parsing errors into runInvoke so invoke fails fast on invalid extensions.
  • Add unit tests covering valid values (including values containing =) and malformed entries.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File Description
cmd/invoke.go Changes extensions parsing to return (map, error) and propagates parsing errors into invoke execution.
cmd/invoke_test.go Adds tests to validate correct parsing behavior and erroring on malformed extensions.

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Comment thread cmd/invoke.go
Comment thread cmd/invoke.go Outdated

func (c invokeConfig) extensionsMap() map[string]string {
extensionsMap := make(map[string]string)
func (c invokeConfig) extensionsMap() (map[string]string, error) {
@Ankitsinghsisodya Ankitsinghsisodya force-pushed the fix/extensionsmap-malformed-input branch from 788bb83 to 3fbb349 Compare May 25, 2026 17:55
- Renamed `extensionsMap` method to `parseExtensions` for clarity.
- Enhanced validation to check for empty keys in extension entries.
- Updated unit tests to cover cases for missing '=' and empty keys in extensions.

This change improves the robustness and clarity of extension parsing in the invoke command.
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codecov Bot commented May 25, 2026

Codecov Report

❌ Patch coverage is 72.72727% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 53.47%. Comparing base (e7d7dcf) to head (c806ceb).

Files with missing lines Patch % Lines
cmd/invoke.go 72.72% 2 Missing and 1 partial ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #3852      +/-   ##
==========================================
+ Coverage   53.44%   53.47%   +0.02%     
==========================================
  Files         200      200              
  Lines       23450    23455       +5     
==========================================
+ Hits        12533    12542       +9     
+ Misses       9662     9659       -3     
+ Partials     1255     1254       -1     
Flag Coverage Δ
e2e 33.71% <45.45%> (-0.01%) ⬇️
e2e go 29.65% <0.00%> (-0.01%) ⬇️
e2e node 25.95% <0.00%> (-0.01%) ⬇️
e2e python 29.98% <0.00%> (-0.01%) ⬇️
e2e quarkus 26.05% <0.00%> (-0.02%) ⬇️
e2e rust 25.53% <0.00%> (-0.01%) ⬇️
e2e springboot 24.20% <0.00%> (-0.01%) ⬇️
e2e typescript 26.05% <0.00%> (-0.01%) ⬇️
e2e-config-ci 26.77% <0.00%> (-0.01%) ⬇️
integration 15.77% <0.00%> (+0.02%) ⬆️
unit macos-14 42.25% <80.00%> (+0.02%) ⬆️
unit macos-latest 42.25% <80.00%> (+0.02%) ⬆️
unit ubuntu-24.04-arm 42.54% <72.72%> (+0.02%) ⬆️
unit ubuntu-latest 43.11% <80.00%> (+0.02%) ⬆️
unit windows-latest 42.32% <80.00%> (+0.02%) ⬆️

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2 participants