38 lines
1.3 KiB
JavaScript
38 lines
1.3 KiB
JavaScript
var assert = require('assert');
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var JSONFileMetricsReporter = require('../../lib/metrics/jsonfilemetricsreporter').JSONFileMetricsReporter;
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var Metrics = require('../../lib/metrics/metrics');
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var os = require('os');
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var fs = require('fs');
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var path = require('path');
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describe('JSONFileMetricsReporter', function () {
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before(() => {
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Metrics.clearReportHooks();
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});
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describe('#report', function () {
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it('reports metrics to file', function (done) {
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const outfile = path.resolve(os.tmpdir(),
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'metrics' + Math.random() + '.txt');
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const reporter = new JSONFileMetricsReporter(outfile);
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Metrics.setReporter(reporter);
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Metrics.incCounter('abc');
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Metrics.incCounter('abc');
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Metrics.incCounter('def', 10);
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Metrics.addProperty('foo', { bar: 'baz' });
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Metrics.flush();
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setTimeout(function () {
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const contents = String(fs.readFileSync(outfile));
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const data = JSON.parse(contents);
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assert.strictEqual(data.abc, 2);
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assert.strictEqual(data.def, 10);
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assert.deepStrictEqual(data.foo, { bar: 'baz' });
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fs.unlinkSync(outfile);
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done();
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}, 100);
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});
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});
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});
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