domain: add negative testing for SendTask()

[ei-sugimoto]

What problem does this PR solve?

Issue Number: close #54115

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[sre-bot]

All committers have signed the CLA.

[ti-chi-bot]

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[ti-chi-bot]

Hi @ei-sugimoto. Thanks for your PR.

I'm waiting for a pingcap 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. Regular contributors should join the org to skip this step.

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Hi @ei-sugimoto. Thanks for your PR.

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[lance6716]

/ok-to-test

@ei-sugimoto Hi, please sign CLA as bot said

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.2796%. Comparing base (74a7173) to head (f0a83fb).

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #54116         +/-   ##
=================================================
- Coverage   72.9019%   55.2796%   -17.6223%     
=================================================
  Files          1520       1641        +121     
  Lines        434902     605579     +170677     
=================================================
+ Hits         317052     334762      +17710     
- Misses        98339     248360     +150021     
- Partials      19511      22457       +2946     

Flag	Coverage Δ
integration	35.7006% <ø> (?)
unit	71.7811% <ø> (-0.1160%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.9656% <ø> (ø)
parser	∅ <ø> (∅)
br	46.5405% <ø> (+0.3646%)	⬆️

[lance6716]

Here's the error from CI

Please run make bazel_prepare to update .bazel files, or just apply the following git diff (run git apply - and paste following contents):

diff --git a/pkg/domain/BUILD.bazel b/pkg/domain/BUILD.bazel
index 8b4f659c35..abead8a809 100644
--- a/pkg/domain/BUILD.bazel
+++ b/pkg/domain/BUILD.bazel
@@ -132,7 +132,7 @@ go_test(
     ],
     embed = [":domain"],
     flaky = True,
-    shard_count = 27,
+    shard_count = 28,
     deps = [
         "//pkg/config",
         "//pkg/ddl",

[ei-sugimoto]

@hawkingrei Thanks, Review!!
@lance6716 Thanks, Review and I sign CLA .

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, lance6716

The full list of commands accepted by this bot can be found here.

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Needs approval from an approver in each of these files:

• pkg/domain/OWNERS [lance6716]

Approvers can indicate their approval by writing /approve in a comment
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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-20 02:42:31.841453478 +0000 UTC m=+255478.326942311: ☑️ agreed by hawkingrei.
• 2024-06-23 00:20:50.452508741 +0000 UTC m=+506176.937997569: ☑️ agreed by lance6716.