golang-stretchr-testify

Comprehensive guide to stretchr/testify for Golang testing. Covers assert, require, mock, and suite packages in depth. Use when writing tests with testify, creating mocks, setting up test suites, or choosing between assert and require. Covers testify assertions, mock expectations, argument matchers, call verification, suite lifecycle, and advanced patterns like Eventually, JSONEq, and custom matchers. Apply when the codebase imports github.com/stretchr/testify.

1.37x

Quality

89%

Does it follow best practices?

Impact

84%

1.37x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Evaluation results

98%

Test Suite for a Cache-Backed User Repository

Testify suite lifecycle and require syntax

Criteria

Without context

With context

Suite embeds suite.Suite

100%

Launcher function present

100%

SetupSuite for one-time init

100%

SetupTest for per-test mocks

100%

s.Require() for preconditions

100%

Suite method naming

100%

All three test cases present

100%

is/must naming convention

100%

AssertExpectations called

80%

No assert for guards

100%

suite.Run receives new(Suite)

100%

Package compiles

100%

78%

Testing a Payment Processor with Retry Logic

Mock patterns: MatchedBy, retry .Once() chaining, AssertExpectations

Criteria

Without context

With context

Mock embeds mock.Mock

100%

m.Called() in methods

100%

AssertExpectations called

100%

mock.MatchedBy for AuditEntry

100%

Predicate checks Amount

37%

100%

Predicate checks Status

37%

100%

Chained .Once() for retry

100%

Retry call count verified

80%

100%

mock.Anything for context

100%

No exact AuditEntry equality

100%

.Once() or .Times() used

100%

54%

-10%

Tests for a Report Generation Service

Advanced assertions: JSONEq, ElementsMatch, InDelta, ErrorIs, EventuallyWithT

Criteria

Without context

With context

JSONEq for JSON comparison

100%

No string equal for JSON

100%

ElementsMatch for unordered slice

InDelta for float tolerance

100%

ErrorIs for wrapped error

100%

No Equal for error check

100%

Pointer not compared with Equal

50%

EventuallyWithT for async

Multiple assertions in callback

No Eventually without T

100%

require for preconditions

100%

is/must naming

100%

Repository: samber/cc-skills-golang
Commit: 8c7e016

Evaluated: 6 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Test Suite for a Cache-Backed User Repository Testing a Payment Processor with Retry Logic Tests for a Report Generation Service

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