test: add continuous profiling configuration tests

Add test-nsolid-config-continuous-profiling.js for API configuration.
Add test-nsolid-config-continuous-profiling-env.js for environment
variables.

PR-URL: #282
Reviewed-By: Juan José Arboleda <[email protected]>

Author: santigimeno

test/fixtures/test-nsolid-config-continuous-profiling-env-script.js

@@ -0,0 +1,18 @@
+'use strict';
+
+// This script is used by test-nsolid-config-continuous-profiling-env.js
+// to test environment variable configuration
+
+require('../common');
+const nsolid = require('nsolid');
+
+// Start N-Solid with default configuration
+nsolid.start();
+
+// Output the configuration as JSON
+console.log(JSON.stringify({
+  contCpuProfile: nsolid.config.contCpuProfile,
+  contCpuProfileInterval: nsolid.config.contCpuProfileInterval,
+  contHeapProfile: nsolid.config.contHeapProfile,
+  contHeapProfileInterval: nsolid.config.contHeapProfileInterval
+}));

test/parallel/test-nsolid-config-continuous-profiling-env.js

@@ -0,0 +1,70 @@
+'use strict';
+
+// This test verifies that continuous profiling configuration works
+// correctly when set via environment variables
+
+require('../common');
+const assert = require('assert');
+const { spawnSync } = require('child_process');
+const path = require('path');
+
+// Helper to run a small script with specific environment variables
+function runWithEnv(envVars) {
+  const script = path.join(__dirname, '../fixtures/test-nsolid-config-continuous-profiling-env-script.js');
+
+  const result = spawnSync(process.execPath, [script], {
+    env: {
+      ...process.env,
+      ...envVars
+    },
+    encoding: 'utf8'
+  });
+
+  if (result.status !== 0) {
+    console.error(result.stderr);
+    throw new Error(`Script execution failed with status ${result.status}`);
+  }
+
+  return JSON.parse(result.stdout.trim());
+}
+
+// Test default values (when no environment variables are set)
+{
+  const config = runWithEnv({});
+  assert.strictEqual(config.contCpuProfile, false);
+  assert.strictEqual(config.contCpuProfileInterval, 30000); // Default is 30 seconds
+}
+
+// Test CPU continuous profiling configuration via environment variables
+{
+  const config = runWithEnv({
+    NSOLID_CONT_CPU_PROFILE: 'true',
+    NSOLID_CONT_CPU_PROFILE_INTERVAL: '60000'
+  });
+  assert.strictEqual(config.contCpuProfile, true);
+  assert.strictEqual(config.contCpuProfileInterval, 60000);
+}
+
+
+// Test boolean coercion for environment variables
+{
+  const config = runWithEnv({
+    NSOLID_CONT_CPU_PROFILE: '1',
+  });
+  assert.strictEqual(config.contCpuProfile, true);
+}
+
+{
+  const config = runWithEnv({
+    NSOLID_CONT_CPU_PROFILE: 'yes'
+  });
+  assert.strictEqual(config.contCpuProfile, true);
+}
+
+// Test disabling via environment variables
+{
+  const config = runWithEnv({
+    NSOLID_CONT_CPU_PROFILE: 'false',
+  });
+  assert.strictEqual(config.contCpuProfile, false);
+}

test/parallel/test-nsolid-config-continuous-profiling.js

@@ -0,0 +1,53 @@
+'use strict';
+
+require('../common');
+const assert = require('assert');
+const nsolid = require('nsolid');
+
+// Test CPU continuous profiling configuration
+nsolid.start({
+  command: 9001,
+  contCpuProfile: true,
+  contCpuProfileInterval: 60000
+});
+
+assert.strictEqual(nsolid.config.contCpuProfile, true);
+assert.strictEqual(nsolid.config.contCpuProfileInterval, 60000);
+
+// Test changing CPU continuous profiling configuration
+nsolid.start({
+  contCpuProfile: false,
+  contCpuProfileInterval: 120000
+});
+
+assert.strictEqual(nsolid.config.contCpuProfile, false);
+assert.strictEqual(nsolid.config.contCpuProfileInterval, 120000);
+
+// Test enabling CPU continuous profiling
+nsolid.start({
+  contCpuProfile: true
+});
+
+assert.strictEqual(nsolid.config.contCpuProfile, true);
+assert.strictEqual(nsolid.config.contCpuProfileInterval, 120000);
+
+// Test type coercion for boolean values
+nsolid.start({
+  contCpuProfile: 'true',
+});
+
+assert.strictEqual(nsolid.config.contCpuProfile, true);
+
+// Test type coercion for interval values
+nsolid.start({
+  contCpuProfileInterval: '45000',
+});
+
+assert.strictEqual(nsolid.config.contCpuProfileInterval, 45000);
+
+// Test disabling CPU profiling
+nsolid.start({
+  contCpuProfile: false,
+});
+
+assert.strictEqual(nsolid.config.contCpuProfile, false);