{ "_comment": "Example mutation testing results JSON. Use this as a template for your own results.", "project": "example-project", "version": "1.0.0", "timestamp": "2024-01-26T10:00:00Z", "mutationScore": 85.71, "_comment": "Overall mutation score. Higher is better.", "summary": { "totalMutations": 21, "killed": 18, "survived": 3, "timeout": 0, "noCoverage": 0, "runtimeErrors": 0, "compileErrors": 0, "ignored": 0 }, "files": [ { "path": "src/calculator.js", "_comment": "Relative path to the file.", "mutations": [ { "id": 1, "location": { "start": { "line": 5, "column": 9 }, "end": { "line": 5, "column": 10 } }, "mutatorName": "ArithmeticOperator", "_comment": "Type of mutation applied.", "original": "+", "replacement": "-", "status": "Killed", "_comment": "Killed: Test caught the mutation. Survived: Mutation went undetected.", "killingTest": "test/calculator.test.js:test addition", "_comment": "Test that killed the mutation. Null if survived.", "description": "Replaced + with -", "static": false }, { "id": 2, "location": { "start": { "line": 9, "column": 9 }, "end": { "line": 9, "column": 10 } }, "mutatorName": "ArithmeticOperator", "original": "-", "replacement": "+", "status": "Killed", "killingTest": "test/calculator.test.js:test subtraction", "description": "Replaced - with +", "static": false }, { "id": 3, "location": { "start": { "line": 13, "column": 9 }, "end": { "line": 13, "column": 10 } }, "mutatorName": "ArithmeticOperator", "original": "*", "replacement": "/", "status": "Survived", "_comment": "This mutation survived, indicating a gap in the test suite.", "killingTest": null, "description": "Replaced * with /", "static": false } ] }, { "path": "src/utils.js", "mutations": [ { "id": 4, "location": { "start": { "line": 2, "column": 5 }, "end": { "line": 2, "column": 7 } }, "mutatorName": "ConditionalExpression", "original": ">=", "replacement": "<", "status": "Killed", "killingTest": "test/utils.test.js:test isPositive", "description": "Replaced >= with <", "static": false }, { "id": 5, "location": { "start": { "line": 6, "column": 12 }, "end": { "line": 6, "column": 14 } }, "mutatorName": "LogicalOperator", "original": "&&", "replacement": "||", "status": "Killed", "killingTest": "test/utils.test.js:test isValid", "description": "Replaced && with ||", "static": false }, { "id": 6, "location": { "start": { "line": 10, "column": 4 }, "end": { "line": 10, "column": 5 } }, "mutatorName": "BooleanLiteral", "original": "true", "replacement": "false", "status": "Survived", "killingTest": null, "description": "Replaced true with false", "static": false } ] } ] }