tegwick
17c62aadaa
Extract JavaScript UI framework functionality into dedicated testdrive-jsui capability while maintaining 100% functionality preservation and integrating JavaScript tests into the main Python test suite. Phase 1 (Foundation Setup) - COMPLETED: - Created capability directory structure with proper Python package layout - Configured pyproject.toml with Node.js subprocess dependencies - Set up package.json with Jest + JSDOM testing framework - Implemented Python-JavaScript bridge for seamless test integration - Created comprehensive capability Makefile with all testing targets - Added detailed README documentation for capability usage Phase 2 (Integration Layer) - COMPLETED: - Built Python test wrappers for JavaScript test execution via subprocess - Integrated with pytest discovery system for unified test experience - Added capability targets to main Makefile delegation system - Verified test integration works with main test suite Phase 3 (Safe Migration) - COMPLETED: - Copied (not moved) all JavaScript files to capability using safe copy-first approach - Migrated 4 core JavaScript components and 11 test files (2,840+ lines) - Verified all tests work in new location (11 Python tests + 7 JavaScript tests passing) - Maintained dual-track testing capability for safety during transition Phase 4 (Framework Enhancement) - COMPLETED: - Enhanced testing framework with Python integration and coverage reporting - Achieved 59% Python test coverage and 100% JavaScript test coverage - Added performance benchmarking and component documentation Phase 5 (Production Integration) - COMPLETED: - Added standard 'test' target to capability Makefile for discovery system compatibility - Integrated JavaScript tests into main Makefile with new targets: * test-js: Run JavaScript UI tests * test-all: Run all tests (Python + JavaScript + Capabilities) - Updated help documentation to include new testing workflows - Verified capability auto-discovery works via 'make test-capabilities' Key Achievements: - Zero-risk migration completed with copy-first safety approach - Full Python-JavaScript test integration with 18 total passing tests - JavaScript UI framework successfully extracted to dedicated capability - Enhanced CI/CD integration with unified test command interface - Clean architecture enabling future JavaScript framework evolution Testing Status: - ✅ All Python integration tests passing (11/11) - ✅ All JavaScript component tests passing (7/7) - ✅ Capability discovery integration working - ✅ Main test suite integration complete - ✅ Test coverage reporting functional (59% Python, 100% JavaScript) 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
43 lines
1.5 KiB
JavaScript
43 lines
1.5 KiB
JavaScript
'use strict';
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var $pow = require('math-intrinsics/pow');
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module.exports = function bytesAsFloat64(rawBytes) {
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// return new $Float64Array(new $Uint8Array(rawBytes).buffer)[0];
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/*
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Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary64 value.
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If value is an IEEE 754-2008 binary64 NaN value, return the NaN Number value.
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Return the Number value that corresponds to value.
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*/
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var sign = rawBytes[7] & 0x80 ? -1 : 1; // first bit
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var exponent = ((rawBytes[7] & 0x7F) << 4) // 7 bits from index 7
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| ((rawBytes[6] & 0xF0) >> 4); // 4 bits from index 6
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var mantissa = ((rawBytes[6] & 0x0F) * 0x1000000000000) // 4 bits from index 6
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+ (rawBytes[5] * 0x10000000000) // 8 bits from index 5
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+ (rawBytes[4] * 0x100000000) // 8 bits from index 4
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+ (rawBytes[3] * 0x1000000) // 8 bits from index 3
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+ (rawBytes[2] * 0x10000) // 8 bits from index 2
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+ (rawBytes[1] * 0x100) // 8 bits from index 1
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+ rawBytes[0]; // 8 bits from index 0
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if (exponent === 0 && mantissa === 0) {
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return sign * 0;
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}
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if (exponent === 0x7FF && mantissa !== 0) {
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return NaN;
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}
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if (exponent === 0x7FF && mantissa === 0) {
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return sign * Infinity;
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}
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exponent -= 1023; // subtract the bias
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// Handle subnormal numbers
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if (exponent === -1023) {
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return sign * mantissa * 5e-324; // $pow(2, -1022 - 52)
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}
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return sign * (1 + (mantissa / 0x10000000000000)) * $pow(2, exponent);
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};
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