[BUG] Incorrect cast to int in `RemoteSegmentTransferTrackerTests.testStatsObjectCreationViaStream()` test

[lukas-vlcek]

Describe the bug

I am running into the following issue:

./gradlew ':server:test' --tests "org.opensearch.index.remote.RemoteSegmentTransferTrackerTests.testStatsObjectCreationViaStream" -Dtests.security.manager=true -Druntime.java=21

RemoteSegmentTransferTrackerTests > testStatsObjectCreationViaStream FAILED
    java.lang.AssertionError: expected:<2.147483647E9> but was:<5.037149882E9>
        at __randomizedtesting.SeedInfo.seed([17B4E7DE40BB6316:F74F7F9D73752E5]:0)
        at org.junit.Assert.fail(Assert.java:89)
        at org.junit.Assert.failNotEquals(Assert.java:835)
        at org.junit.Assert.assertEquals(Assert.java:555)
        at org.junit.Assert.assertEquals(Assert.java:685)
        at org.opensearch.index.remote.RemoteSegmentTransferTrackerTests.testStatsObjectCreationViaStream(RemoteSegmentTransferTrackerTests.java:580)

The following line is causing the issue:

OpenSearch/server/src/test/java/org/opensearch/index/remote/RemoteSegmentTransferTrackerTests.java

Line 580 in 13f04d9

assertEquals((int) deserializedStats.uploadTimeMovingAverage, transferTrackerStats.uploadTimeMovingAverage, 0);

When I add the following assert before the line 580

assert deserializedStats.uploadTimeMovingAverage <= Integer.MAX_VALUE : "uploadTimeMovingAverage value too large for casting to int";

Then the assert fails

RemoteSegmentTransferTrackerTests > testStatsObjectCreationViaStream FAILED
    java.lang.AssertionError: uploadTimeMovingAverage value too large for casting to int
        at __randomizedtesting.SeedInfo.seed([C0053EEBF80305D6:D8C52ECC6F8F3425]:0)
        at org.opensearch.index.remote.RemoteSegmentTransferTrackerTests.testStatsObjectCreationViaStream(RemoteSegmentTransferTrackerTests.java:580)

What is the point of casting double to int when the original value can be larger than Integer.MAX_VALUE (for example 5037810928 in my case)?

In fact all the following three lines are IMO incorrectly using cast to int:

OpenSearch/server/src/test/java/org/opensearch/index/remote/RemoteSegmentTransferTrackerTests.java

Lines 574 to 580 in 13f04d9

	assertEquals((int) deserializedStats.uploadBytesMovingAverage, transferTrackerStats.uploadBytesMovingAverage, 0);
	assertEquals(
	(int) deserializedStats.uploadBytesPerSecMovingAverage,
	transferTrackerStats.uploadBytesPerSecMovingAverage,
	0
	);
	assertEquals((int) deserializedStats.uploadTimeMovingAverage, transferTrackerStats.uploadTimeMovingAverage, 0);

BTW, compare it to similar three lines from different test from the same class

OpenSearch/server/src/test/java/org/opensearch/index/remote/RemoteSegmentTransferTrackerTests.java

Lines 545 to 547 in 13f04d9

	assertEquals(transferTracker.getUploadBytesMovingAverage(), transferTrackerStats.uploadBytesMovingAverage, 0);
	assertEquals(transferTracker.getUploadBytesPerSecMovingAverage(), transferTrackerStats.uploadBytesPerSecMovingAverage, 0);
	assertEquals(transferTracker.getUploadTimeMovingAverage(), transferTrackerStats.uploadTimeMovingAverage, 0);

I believe this issues is perhaps quick cut&paste issue or something along the lines.

This issue has been already partially reported in #10014

Feel free to assign this ticket to me, I will send PR. PR sent.

Related component

Storage:Remote

To Reproduce

Please see the description above.

Expected behavior

The test should pass.

Additional Details

Host/Environment (please complete the following information):

• OS: % uname -a Darwin Lukass-MBP.xxxx.xxxx 22.5.0 Darwin Kernel Version 22.5.0: Mon Apr 24 20:52:24 PDT 2023; root:xnu-8796.121.2~5/RELEASE_ARM64_T6000 arm64
• Version: main branch

[lukas-vlcek]

Relevant autocut ticket: #14325