tessl/npm-grafana--e2e

Grafana End-to-End Test Library built on Cypress with structured API for testing Grafana dashboards, data sources, panels, and administrative functions

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Benchmark Testing

Name: tessl/npm-grafana--e2e
Author: tessl

Performance benchmark testing for measuring Grafana operation performance and collecting application statistics during e2e test execution.

Capabilities

Benchmark Function

Run performance benchmarks with configurable parameters for measuring Grafana dashboard and application performance.

/**
 * Run performance benchmarks with dashboard configuration
 * @param args - Benchmark configuration object
 */
function benchmark(args: BenchmarkArguments): void;

interface BenchmarkArguments {
  /** Benchmark test name */
  name: string;
  /** Dashboard configuration for benchmark */
  dashboard: DashboardBenchmarkConfig;
  /** Number of test iterations to run */
  repeat: number;
  /** Duration per test iteration in milliseconds */
  duration: number;
  /** Optional app statistics collection */
  appStats?: AppStatsConfig;
  /** Skip benchmark execution if true */
  skipScenario?: boolean;
}

interface DashboardBenchmarkConfig {
  /** Dashboard folder path */
  folder: string;
  /** Delay after opening dashboard in milliseconds */
  delayAfterOpening: number;
  /** Skip panel validation during benchmark */
  skipPanelValidation: boolean;
}

interface AppStatsConfig {
  /** Function to start collecting application statistics */
  startCollecting?(window: Window): void;
  /** Function to collect and return application statistics */
  collect(window: Window): Record<string, unknown>;
}

Usage Examples:

import { e2e } from "@grafana/e2e";

// Basic benchmark test
e2e.benchmark({
  name: "Dashboard Load Performance",
  dashboard: {
    folder: "dashboards/performance-test",
    delayAfterOpening: 1000,
    skipPanelValidation: false
  },
  repeat: 5,
  duration: 30000
});

// Benchmark with app statistics collection
e2e.benchmark({
  name: "Memory Usage Benchmark",
  dashboard: {
    folder: "dashboards/memory-test",
    delayAfterOpening: 2000,
    skipPanelValidation: true
  },
  repeat: 10,
  duration: 60000,
  appStats: {
    startCollecting: (window: Window) => {
      // Start memory monitoring
      console.log("Starting memory collection");
    },
    collect: (window: Window) => {
      // Return collected metrics
      return {
        memoryUsage: (window as any).performance?.memory?.usedJSHeapSize || 0,
        timestamp: Date.now()
      };
    }
  }
});

// Conditional benchmark execution
e2e.benchmark({
  name: "Conditional Performance Test",
  dashboard: {
    folder: "dashboards/load-test",
    delayAfterOpening: 500,
    skipPanelValidation: false
  },
  repeat: 3,
  duration: 15000,
  skipScenario: process.env.SKIP_BENCHMARKS === "true"
});

Benchmark Configuration

Dashboard Configuration

Configure how dashboards are loaded and validated during benchmarks:

folder: Path to dashboard files for benchmark testing
delayAfterOpening: Wait time after dashboard opens to ensure full load
skipPanelValidation: Skip panel rendering validation for faster execution

Execution Parameters

Control benchmark test execution:

repeat: Number of iterations to run for statistical significance
duration: How long each iteration should run to capture performance data
skipScenario: Conditional execution based on environment or flags

Statistics Collection

Optional application statistics collection during benchmark execution:

startCollecting: Initialize performance monitoring
collect: Gather and return performance metrics

Integration with Test Scenarios

Benchmarks can be integrated with regular test scenarios:

import { e2e } from "@grafana/e2e";

e2e.scenario({
  describeName: "Performance Tests",
  itName: "should measure dashboard performance",
  scenario: () => {
    // Setup test data
    e2e.flows.addDashboard({
      title: "Performance Test Dashboard"
    });
    
    // Run benchmark
    e2e.benchmark({
      name: "Dashboard Rendering",
      dashboard: {
        folder: "current-dashboard",
        delayAfterOpening: 1000,
        skipPanelValidation: false
      },
      repeat: 3,
      duration: 10000
    });
    
    // Cleanup
    e2e.flows.revertAllChanges();
  }
});

Environment Configuration

Benchmarks can be configured via environment variables:

# Disable command logging for cleaner benchmark output
CYPRESS_NO_COMMAND_LOG=1

# Skip benchmark tests in CI
SKIP_BENCHMARKS=true

# Set benchmark iterations
BENCHMARK_REPEAT=10

Access environment variables in benchmark configuration:

e2e.benchmark({
  name: "Configurable Benchmark",
  dashboard: {
    folder: "dashboards/test",
    delayAfterOpening: 1000,
    skipPanelValidation: false
  },
  repeat: parseInt(process.env.BENCHMARK_REPEAT || "5"),
  duration: 30000,
  skipScenario: process.env.CI === "true"
});