DeepSource MCP Server

/** * @vitest-environment node */ import { TestableDeepSourceClient } from './utils/test-utils'; import { MetricDirection } from '../types/metrics'; describe('DeepSource Metric Calculator', () => { describe('calculateTrendDirection', () => { it('should calculate trend for higher-is-better metrics', () => { // Increasing values const increasingValues = [{ value: 70 }, { value: 75 }, { value: 80 }]; const result1 = TestableDeepSourceClient.testCalculateTrendDirection( increasingValues, MetricDirection.HIGHER_IS_BETTER ); expect(result1).toBeDefined(); // Decreasing values const decreasingValues = [{ value: 80 }, { value: 75 }, { value: 70 }]; const result2 = TestableDeepSourceClient.testCalculateTrendDirection( decreasingValues, MetricDirection.HIGHER_IS_BETTER ); expect(result2).toBeDefined(); }); it('should calculate trend for lower-is-better metrics', () => { // Decreasing values (positive trend for LOWER_IS_BETTER) const decreasingValues = [{ value: 10 }, { value: 8 }, { value: 5 }]; const result = TestableDeepSourceClient.testCalculateTrendDirection( decreasingValues, MetricDirection.LOWER_IS_BETTER ); expect(result).toBeDefined(); }); it('should handle edge cases', () => { // Empty array const emptyValues: Array<{ value: number }> = []; const result1 = TestableDeepSourceClient.testCalculateTrendDirection( emptyValues, MetricDirection.HIGHER_IS_BETTER ); expect(result1).toBeDefined(); // Single value const singleValue = [{ value: 75 }]; const result2 = TestableDeepSourceClient.testCalculateTrendDirection( singleValue, MetricDirection.HIGHER_IS_BETTER ); expect(result2).toBeDefined(); }); }); describe('createMetricHistoryResponse', () => { it('should create a metric history response object', () => { const params = { projectKey: 'test-project', metricShortcode: 'LCV', metricKey: 'AGGREGATE', }; const metric = { name: 'Line Coverage', shortcode: 'LCV', positiveDirection: 'HIGHER_IS_BETTER', unit: '%', }; const metricItem = { id: 'metric-1', key: 'AGGREGATE', threshold: 80, }; const historyValues = [ { value: 70, valueDisplay: '70%', threshold: 80, thresholdStatus: 'FAILING', }, { value: 85, valueDisplay: '85%', threshold: 80, thresholdStatus: 'PASSING', }, ]; const result = TestableDeepSourceClient.testCreateMetricHistoryResponse( params, metric, metricItem, historyValues ); expect(result).toBeDefined(); expect(result.name).toBe('Line Coverage'); expect(result.shortcode).toBe('LCV'); expect(result.metricKey).toBe('AGGREGATE'); expect(result.unit).toBe('%'); expect(result.positiveDirection).toBeDefined(); expect(result.threshold).toBe(80); expect(result.values).toEqual(historyValues); expect(result.isTrendingPositive).toBeDefined(); }); it('should handle missing threshold', () => { const params = { projectKey: 'test-project', metricShortcode: 'LCV', metricKey: 'AGGREGATE', }; const metric = { name: 'Line Coverage', shortcode: 'LCV', positiveDirection: 'HIGHER_IS_BETTER', unit: '%', }; const metricItem = { id: 'metric-1', key: 'AGGREGATE', // No threshold property }; const historyValues = [ { value: 70, valueDisplay: '70%', }, ]; const result = TestableDeepSourceClient.testCreateMetricHistoryResponse( params, metric, metricItem, historyValues ); expect(result).toBeDefined(); expect(result.threshold).toBeUndefined(); }); }); });