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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /testing/web-platform/tests/webaudio/js/helpers.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'testing/web-platform/tests/webaudio/js/helpers.js')
-rw-r--r--testing/web-platform/tests/webaudio/js/helpers.js33
1 files changed, 33 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/js/helpers.js b/testing/web-platform/tests/webaudio/js/helpers.js
new file mode 100644
index 000000000..9e4ee6fa3
--- /dev/null
+++ b/testing/web-platform/tests/webaudio/js/helpers.js
@@ -0,0 +1,33 @@
+function assert_array_approx_equals(actual, expected, epsilon, description)
+{
+ assert_true(actual.length === expected.length,
+ (description + ": lengths differ, expected " + expected.length + " got " + actual.length))
+
+ for (var i=0; i < actual.length; i++) {
+ assert_approx_equals(actual[i], expected[i], epsilon, (description + ": element " + i))
+ }
+}
+
+/*
+ Returns an array (typed or not), of the passed array with removed trailing and ending
+ zero-valued elements
+ */
+function trimEmptyElements(array) {
+ var start = 0;
+ var end = array.length;
+
+ while (start < array.length) {
+ if (array[start] !== 0) {
+ break;
+ }
+ start++;
+ }
+
+ while (end > 0) {
+ end--;
+ if (array[end] !== 0) {
+ break;
+ }
+ }
+ return array.subarray(start, end);
+}