+++ /dev/null
-This test verifies PerfTestRunner.computeStatistics(), including: min, max, median, mean, sum, variance, and stdev.
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-Ensure no latent divide by 0's for an odd number of elements.
-data = [0,0,0,0,0]
-PASS stats.min is 0
-PASS stats.max is 0
-PASS stats.median is 0
-PASS stats.mean is 0
-PASS stats.sum is 0
-PASS stats.variance is 0
-PASS stats.stdev is 0
-
-This test will catch if any order dependencies in the data, such as
-needing to be numerically sorted, are not resolved by the algorithm.
-This variant covers an odd number of elements.
-data = [1,10,2,20,5]
-PASS stats.min is 1
-PASS stats.max is 20
-PASS stats.median is 5
-PASS stats.mean is 7.6
-PASS stats.sum is 38
-PASS stats.min is 1
-PASS stats.max is 20
-PASS stats.median is 5
-PASS stats.mean is 7.6
-PASS stats.sum is 38
-PASS stats.variance is within 0.0001 of 48.239999999999995
-PASS stats.stdev is within 0.0001 of 6.945502141674135
-
-This test will catch if any order dependencies in the data, such as
-needing to be numerically sorted, are not resolved by the algorithm.
-This variant covers an odd number of elements, and negative values.
-data = [-1,-10,-2,-20,-5]
-PASS stats.min is -20
-PASS stats.max is -1
-PASS stats.median is -5
-PASS stats.mean is -7.6
-PASS stats.sum is -38
-PASS stats.min is -20
-PASS stats.max is -1
-PASS stats.median is -5
-PASS stats.mean is -7.6
-PASS stats.sum is -38
-PASS stats.variance is within 0.0001 of 48.239999999999995
-PASS stats.stdev is within 0.0001 of 6.945502141674135
-
-Ensure no latent divide by 0's for an even number of elements.
-data = [0,0,0,0]
-PASS stats.median is 0
-
-This test verifies that median is handled correctly for
-an even number of elements.
-data = [1,10,2,20,5,6]
-PASS stats.median is 5.5
-PASS stats.median is 5.5
-
-This test verifies that median is handled correctly for
-an even number of elements, including negative numbers.
-data = [-1,-10,-2,-20,-5,-6]
-PASS stats.median is -5.5
-PASS stats.median is -5.5
-
-PASS successfullyParsed is true
-
-TEST COMPLETE
-
+++ /dev/null
-<!DOCTYPE html>
-<html>
-<head>
-<script src="../../../fast/js/resources/js-test-pre.js"></script>
-<script src="../../../../PerformanceTests/resources/runner.js"></script>
-<script type="text/javascript">
-var alternateComputeStatistics = {
- min: function(array) {
- return Math.min.apply(Math, array);
- },
- max: function(array) {
- return Math.max.apply(Math, array);
- },
- median: function(originalData) {
- // don't want side effects on the input array, so...
- var array = originalData.slice(0);
- array.sort(function(a,b) { return a - b; });
- var mid = Math.floor(array.length / 2);
- if (array.length % 2)
- return array[mid];
- else
- return (array[mid-1] + array[mid]) / 2;
- },
- mean: function(array) {
- return alternateComputeStatistics.sum(array)/array.length;
- },
- sum: function(array) {
- var total = 0;
- for (var index in array)
- total += array[index];
- return total;
- },
- variance: function(array) {
- var mean = alternateComputeStatistics.mean(array);
- var arrayOfSquaredDiffs = [];
- for (var index in array) {
- var squaredDiff = array[index] - mean;
- squaredDiff *= squaredDiff;
- arrayOfSquaredDiffs.push(squaredDiff);
- };
- return alternateComputeStatistics.mean(arrayOfSquaredDiffs);
- },
- stdev: function(array) {
- return Math.sqrt(alternateComputeStatistics.variance(array));
- }
-};
-</script>
-</head>
-<body>
-
-<div id="description"></div>
-
-<script type="text/javascript">
-description("This test verifies PerfTestRunner.computeStatistics(), " +
- "including: min, max, median, mean, sum, variance, and stdev.");
-</script>
-
-<div id="console"></div>
-
-<script type="text/javascript">
-var data = [];
-var stats = [];
-
-data = [0, 0, 0, 0, 0];
-debug("Ensure no latent divide by 0's for an odd number of elements.");
-debug("data = " + JSON.stringify(data));
-stats = PerfTestRunner.computeStatistics(data);
-shouldEvaluateTo("stats.min", 0);
-shouldEvaluateTo("stats.max", 0);
-shouldEvaluateTo("stats.median", 0);
-shouldEvaluateTo("stats.mean", 0);
-shouldEvaluateTo("stats.sum", 0);
-shouldEvaluateTo("stats.variance", 0);
-shouldEvaluateTo("stats.stdev", 0);
-debug("");
-
-data = [1, 10, 2, 20, 5];
-debug("This test will catch if any order dependencies in the data, such as");
-debug("needing to be numerically sorted, are not resolved by the algorithm.");
-debug("This variant covers an odd number of elements.");
-debug("data = " + JSON.stringify(data));
-stats = PerfTestRunner.computeStatistics(data);
-// hand calculated
-shouldEvaluateTo("stats.min", 1);
-shouldEvaluateTo("stats.max", 20);
-shouldEvaluateTo("stats.median", 5);
-shouldEvaluateTo("stats.mean", (38/5));
-shouldEvaluateTo("stats.sum", (1+2+5+10+20));
-// using alternate implementation
-shouldEvaluateTo("stats.min", alternateComputeStatistics.min(data));
-shouldEvaluateTo("stats.max", alternateComputeStatistics.max(data));
-shouldEvaluateTo("stats.median", alternateComputeStatistics.median(data));
-shouldEvaluateTo("stats.mean", alternateComputeStatistics.mean(data));
-shouldEvaluateTo("stats.sum", alternateComputeStatistics.sum(data));
-shouldBeCloseTo("stats.variance", alternateComputeStatistics.variance(data), 0.0001);
-shouldBeCloseTo("stats.stdev", alternateComputeStatistics.stdev(data), 0.0001);
-debug("");
-
-data = [-1, -10, -2, -20, -5];
-debug("This test will catch if any order dependencies in the data, such as");
-debug("needing to be numerically sorted, are not resolved by the algorithm.");
-debug("This variant covers an odd number of elements, and negative values.");
-debug("data = " + JSON.stringify(data));
-stats = PerfTestRunner.computeStatistics(data);
-// hand calculated
-shouldEvaluateTo("stats.min", -20);
-shouldEvaluateTo("stats.max", -1);
-shouldEvaluateTo("stats.median", -5);
-shouldEvaluateTo("stats.mean", (-38/5));
-shouldEvaluateTo("stats.sum", (-1-2-5-10-20));
-// using alternate implementation
-shouldEvaluateTo("stats.min", alternateComputeStatistics.min(data));
-shouldEvaluateTo("stats.max", alternateComputeStatistics.max(data));
-shouldEvaluateTo("stats.median", alternateComputeStatistics.median(data));
-shouldEvaluateTo("stats.mean", alternateComputeStatistics.mean(data));
-shouldEvaluateTo("stats.sum", alternateComputeStatistics.sum(data));
-shouldBeCloseTo("stats.variance", alternateComputeStatistics.variance(data), 0.0001);
-shouldBeCloseTo("stats.stdev", alternateComputeStatistics.stdev(data), 0.0001);
-debug("");
-
-data = [0, 0, 0, 0];
-debug("Ensure no latent divide by 0's for an even number of elements.");
-debug("data = " + JSON.stringify(data));
-stats = PerfTestRunner.computeStatistics(data);
-shouldEvaluateTo("stats.median", 0);
-debug("");
-
-data = [1, 10, 2, 20, 5, 6];
-debug("This test verifies that median is handled correctly for");
-debug("an even number of elements.");
-debug("data = " + JSON.stringify(data));
-stats = PerfTestRunner.computeStatistics(data);
-shouldEvaluateTo("stats.median", 5.5);
-shouldEvaluateTo("stats.median", alternateComputeStatistics.median(data));
-debug("");
-
-data = [-1, -10, -2, -20, -5, -6];
-debug("This test verifies that median is handled correctly for");
-debug("an even number of elements, including negative numbers.");
-debug("data = " + JSON.stringify(data));
-stats = PerfTestRunner.computeStatistics(data);
-shouldEvaluateTo("stats.median", -5.5);
-shouldEvaluateTo("stats.median", alternateComputeStatistics.median(data));
-debug("");
-
-// runner.js marks this as an async test so we need to call notifyDone.
-if (window.layoutTestController)
- layoutTestController.notifyDone();
-</script>
-
-<script src="../../../fast/js/resources/js-test-post.js"></script>
-</body>
-</html>
git://git.webkit.org / WebKit-https.git / commitdiff