{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/test-driven-development/refs/heads/main/json-schema/test-driven-development-coverage-report-schema.json",
  "title": "CoverageReport",
  "description": "A code coverage report produced after running a TDD test suite, showing the percentage of code lines, branches, and functions covered by tests.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Unique identifier for the coverage report."
    },
    "project": {
      "type": "string",
      "description": "Name of the project or repository this coverage report applies to."
    },
    "commit_hash": {
      "type": "string",
      "description": "Git commit hash for which this coverage was measured."
    },
    "branch": {
      "type": "string",
      "description": "Git branch name."
    },
    "build_id": {
      "type": "string",
      "description": "CI build identifier associated with this coverage report."
    },
    "summary": {
      "$ref": "#/$defs/CoverageSummary",
      "description": "Overall coverage statistics for the project."
    },
    "files": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/FileCoverage"
      },
      "description": "Per-file coverage breakdown."
    },
    "generated_at": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp when the coverage report was generated."
    },
    "tool": {
      "type": "string",
      "description": "Coverage tool used to generate the report (e.g., Istanbul, JaCoCo, coverage.py)."
    }
  },
  "required": ["id", "project", "summary", "generated_at"],
  "$defs": {
    "CoverageSummary": {
      "type": "object",
      "properties": {
        "lines_pct": {
          "type": "number",
          "minimum": 0,
          "maximum": 100,
          "description": "Percentage of code lines covered by tests."
        },
        "branches_pct": {
          "type": "number",
          "minimum": 0,
          "maximum": 100,
          "description": "Percentage of code branches covered by tests."
        },
        "functions_pct": {
          "type": "number",
          "minimum": 0,
          "maximum": 100,
          "description": "Percentage of functions covered by tests."
        },
        "statements_pct": {
          "type": "number",
          "minimum": 0,
          "maximum": 100,
          "description": "Percentage of statements covered by tests."
        },
        "lines_total": {
          "type": "integer",
          "description": "Total number of executable lines."
        },
        "lines_covered": {
          "type": "integer",
          "description": "Number of executable lines covered by tests."
        }
      },
      "required": ["lines_pct"]
    },
    "FileCoverage": {
      "type": "object",
      "properties": {
        "file_path": {
          "type": "string",
          "description": "Relative path to the source file."
        },
        "lines_pct": {
          "type": "number",
          "minimum": 0,
          "maximum": 100,
          "description": "Line coverage percentage for this file."
        },
        "branches_pct": {
          "type": "number",
          "minimum": 0,
          "maximum": 100,
          "description": "Branch coverage percentage for this file."
        }
      },
      "required": ["file_path", "lines_pct"]
    }
  }
}