{"record":{"id":"bee53c45cb0583f0","repo":"mochajs/mocha","slug":"err-mocha-invalid-arg-type-bee53c","errorCode":"ERR_MOCHA_INVALID_ARG_TYPE","errorMessage":"Suite \"${suite.fullTitle()}\" was defined but no callback was supplied. Supply a callback or explicitly skip the suite.","messagePattern":"Suite \"(.+?)\" was defined but no callback was supplied\\. Supply a callback or explicitly skip the suite\\.","errorType":"error_code","errorClass":"TypeError","httpStatus":null,"severity":"error","filePath":"lib/interfaces/common.js","lineNumber":146,"sourceCode":"        var suite = Suite.create(suites[0], opts.title);\n        suite.pending = Boolean(opts.pending);\n        suite.file = opts.file;\n        suites.unshift(suite);\n        if (opts.isOnly) {\n          suite.markOnly();\n        }\n        if (\n          suite.pending &&\n          mocha.options.forbidPending &&\n          shouldBeTested(suite)\n        ) {\n          throw createUnsupportedError(\"Pending test forbidden\");\n        }\n        if (typeof opts.fn === \"function\") {\n          opts.fn.call(suite);\n          suites.shift();\n        } else if (typeof opts.fn === \"undefined\" && !suite.pending) {\n          throw createMissingArgumentError(\n            'Suite \"' +\n              suite.fullTitle() +\n              '\" was defined but no callback was supplied. ' +\n              \"Supply a callback or explicitly skip the suite.\",\n            \"callback\",\n            \"function\",\n          );\n        } else if (!opts.fn && suite.pending) {\n          suites.shift();\n        }\n\n        return suite;\n      },\n    },\n\n    test: {\n      /**\n       * Exclusive test-case.","sourceCodeStart":128,"sourceCodeEnd":164,"githubUrl":"https://github.com/mochajs/mocha/blob/6bcbee4fd9a95351cedf0fdcb14c7d696486bc5a/lib/interfaces/common.js#L128-L164","documentation":"Error \"Suite \"${suite.fullTitle()}\" was defined but no callback was supplied. Supply a callback or explicitly skip the suite.\" thrown in mochajs/mocha.","triggerScenarios":"Thrown at lib/interfaces/common.js:146 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"6bcbee4fd9a95351cedf0fdcb14c7d696486bc5a","analyzedAt":"2026-09-01T03:41:47.182Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}