{"uid":"cap_mgm68TEEfxb4Kxc1gyFf_","slug":"api-strale-io-7043d0cc","name":"Test Case Generator","description":"Generate test cases from a function description or signature. 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It takes a string parameter representing an email address and returns a boolean indicating whether the email is valid. The function should check for proper email format (local-part@domain.extension) and verify that the domain has valid MX records."},"response":{"_meta":{"payment":{"method":"x402","price_usd":0.162,"settlement_id":"0x0475735be8d802bbb893ea16cbf167fda8d6aa9077ffa9faa1d9be7fe9555d4b"},"capability":"test-case-generate","latency_ms":9467,"provenance":{"source":"claude-haiku","fetched_at":"2026-06-13T04:24:32.745Z"}},"test_cases":[{"name":"Valid email with common domain","input":"user@example.com","category":"happy_path","description":"Standard valid email format with existing domain","expected_output":true},{"name":"Valid email with subdomain","input":"user@mail.example.com","category":"happy_path","description":"Valid email with subdomain in domain part","expected_output":true},{"name":"Valid email with numbers and dots in local part","input":"user.name+tag@example.co.uk","category":"happy_path","description":"Valid email with special characters allowed in local part","expected_output":true},{"name":"Missing @ symbol","input":"userexample.com","category":"error_case","description":"Email without @ separator fails validation","expected_output":false},{"name":"Missing local part","input":"@example.com","category":"boundary","description":"Email with empty local part is invalid","expected_output":false},{"name":"Missing domain","input":"user@","category":"boundary","description":"Email with empty domain is invalid","expected_output":false},{"name":"Missing extension","input":"user@example","category":"boundary","description":"Email without domain extension fails validation","expected_output":false},{"name":"Empty string","input":"","category":"edge_case","description":"Empty email string is invalid","expected_output":false},{"name":"Spaces in email","input":"user name@example.com","category":"error_case","description":"Email with spaces is invalid","expected_output":false},{"name":"Multiple @ symbols","input":"user@domain@example.com","category":"error_case","description":"Email with multiple @ symbols is invalid","expected_output":false},{"name":"Domain with invalid MX records","input":"user@invalid-domain-12345-test.com","category":"edge_case","description":"Email with non-existent domain fails MX record verification","expected_output":false},{"name":"Only @ symbol","input":"@","category":"boundary","description":"String containing only @ symbol is invalid","expected_output":false},{"name":"Special characters in local part","input":"user+filter@example.com","category":"happy_path","description":"Valid email with plus sign in local part","expected_output":true},{"name":"Consecutive dots in local part","input":"user..name@example.com","category":"error_case","description":"Email with consecutive dots in local part is invalid","expected_output":false},{"name":"Domain with hyphen","input":"user@my-domain.com","category":"happy_path","description":"Valid email with hyphenated domain","expected_output":true},{"name":"Leading dot in local part","input":".user@example.com","category":"boundary","description":"Email starting with dot in local part is invalid","expected_output":false},{"name":"Trailing dot in local part","input":"user.@example.com","category":"boundary","description":"Email ending with dot in local part is invalid","expected_output":false},{"name":"Local part too long","input":"verylonglocalpartthatexceedsthemaximumlengthallowedforthelocalparthereitshouldbeabout64characters@example.com","category":"boundary","description":"Email with local part exceeding 64 characters is invalid","expected_output":false},{"name":"Domain with numeric extension","input":"user@example.123","category":"error_case","description":"Email with numeric-only extension is invalid","expected_output":false},{"name":"Case sensitivity test - uppercase","input":"USER@EXAMPLE.COM","category":"edge_case","description":"Email validation should be case-insensitive","expected_output":true},{"name":"International domain","input":"user@example.中国","category":"edge_case","description":"Email with internationalized domain name","expected_output":true},{"name":"Domain with single character","input":"user@a.com","category":"boundary","description":"Valid email with single-character domain","expected_output":true}],"total_cases":22,"coverage_notes":"Coverage includes: valid email formats (happy path), missing required components (@, local part, domain, extension), special characters and dots handling, MX record verification, RFC 5321/5322 compliance for format, edge cases like empty strings, spaces, multiple @ symbols, case sensitivity, internationalized domains, length constraints, and consecutive dot validation. Potential gaps: SMTP validation, disposable email detection, real-time SMTP verification, and Unicode character validation in local parts.","language_detected":"python"}},"exampleRequest":{"language":"python","include_edge_cases":true,"function_description":"A function that validates a user email address format and checks if the domain exists. It takes a string parameter representing an email address and returns a boolean indicating whether the email is valid. The function should check for proper email format (local-part@domain.extension) and verify that the domain has valid MX records."},"tags":["x402"],"displayCostAmount":"0.162","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.162/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.162","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.162","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qEXWgOpYtxfahdJvuC23_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.162","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates comprehensive test cases from a function description or signature, including happy path, edge cases, boundary tests, and error cases","exampleAgentPrompt":"Generate comprehensive test cases for a Python function that validates email addresses — include happy path, edge cases, boundary tests, and error cases.","exampleUseCases":null,"resultDescription":"A structured list of test cases covering: happy path scenarios (valid inputs that should succeed), edge cases (unusual but valid inputs), boundary tests (limit values like empty strings, max length), and error cases (invalid inputs that should raise exceptions or return errors). Results are keyed to the function description provided.","failureModes":["Missing required function_description parameter returns 400 Bad Request","Ambiguous or very short function description may produce generic or low-quality test cases","Unsupported language value may result in language-agnostic output or error","Payment failure (402) if USDC balance is insufficient","Service timeout for very complex or lengthy function descriptions"],"whenToPreferThis":"Use this endpoint when you need to quickly scaffold a comprehensive test suite for a function and want coverage across happy path, edge, boundary, and error scenarios without writing them manually. Especially useful for TDD workflows, code review automation, or when onboarding to an unfamiliar codebase.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":2,"lastUsedAt":"2026-07-24T18:35:56.442Z","lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T06:49:00.853Z","isFirstParty":false,"canonicalSlug":"api-strale-io-7043d0cc"}