Name: tessl/npm-istanbul-lib-source-maps
Author: tessl

tessl/npm-istanbul-lib-source-maps

Source maps support for Istanbul code coverage toolkit, enabling accurate coverage reporting for transpiled JavaScript code

Overall
score

98%

Overview

Eval results

Files

Evaluation results

96%

63%

Source Map Coverage Debugger

Debug Logging and Error Handling

Criteria

Without context

With context

MapStore Creation

100%

Source Map Registration

100%

Source Map Retrieval

100%

Data URL Handling

30%

80%

Source Map Validation

33%

86%

Graceful Error Handling

100%

Verbose Logging

100%

80%

-5%

Coverage Report Transformer

Coverage Transformation

Criteria

Without context

With context

Store Creation

100%

Coverage Map Handling

100%

Transform Invocation

100%

66%

Async Handling

100%

Embedded Source Maps

33%

Return Value

100%

Coverage Reporter with Source Map Support

Source Map Store Creation

Criteria

Without context

With context

Store Creation

100%

Source Map Registration

100%

Coverage Transformation

100%

Async Handling

100%

Result Processing

100%

Error Handling

100%

Coverage Accumulator

Coverage Accumulation

Criteria

Without context

With context

MappedCoverage instantiation

100%

Statement accumulation

100%

Function accumulation

100%

Branch accumulation

100%

30%

Source Map Position Mapper

Position Mapping

Criteria

Without context

With context

TraceMap usage

100%

Position lookup

100%

Coordinate handling

100%

Null mapping handling

100%

Source file extraction

100%

60%

Coverage Transformer with Embedded Source Map Support

Zero-Configuration Embedded Source Maps

Criteria

Without context

With context

MapStore Creation

100%

transformCoverage Usage

100%

Embedded Map Detection

100%

registerMap Usage

100%

CoverageMap Handling

100%

Source Content Caching

100%

35%

Coverage Data Enrichment Tool

Input Source Map Addition

Criteria

Without context

With context

MapStore Creation

100%

Source Map Discovery

100%

Source Map Registration

100%

Coverage Data Enrichment

100%

Correct Return Value

50%

100%

Source Map Validator

Source Map Format Support

Criteria

Without context

With context

TraceMap usage

100%

Version validation

100%

Required property validation

100%

String/object parsing

100%

Position lookup methods

100%

Bias mode support

100%

37%

Source Map Retrieval Tool

Source Map Retrieval

Criteria

Without context

With context

MapStore Creation

100%

URL Registration

40%

100%

Object Registration

100%

Synchronous Retrieval

100%

Undefined Handling

100%

Coverage Path Normalizer

Path Resolution

Criteria

Without context

With context

Uses asAbsolute

100%

Uses isAbsolute

100%

Uses relativeTo

100%

Uses getUniqueKey

100%

Install with Tessl CLI

npx tessl i tessl/npm-istanbul-lib-source-maps

Evaluated: about 2 months ago
Agent: Claude Code

Table of Contents

Source Map Coverage Debugger Coverage Report Transformer Coverage Reporter with Source Map Support Coverage Accumulator Source Map Position Mapper Coverage Transformer with Embedded Source Map Support Coverage Data Enrichment Tool Source Map Validator Source Map Retrieval Tool Coverage Path Normalizer