RFR: JDK-8316559: Refactor some util/Calendar tests to JUnit

[Naoto Sato]

On Wed, 20 Sep 2023 23:20:43 GMT, Justin Lu <jlu at openjdk.org> wrote:

> Please review this PR which converts some tests under _Calendar_ to use JUnit. These tests either previously used the internal _IntlTest_, or used no framework at all. 
> 
> Any files named BugXXXXXXX.java will be renamed after review.

test/jdk/java/util/Calendar/Bug4766302.java line 32:

> 30: import java.util.GregorianCalendar;
> 31: 
> 32: @SuppressWarnings("serial")

Is removing this OK?

test/jdk/java/util/Calendar/bug4028518.java line 41:

> 39: public class bug4028518 {
> 40: 
> 41:     // Ensure modifying cloned gregCalendar does not modify the original

Seems that the comment is saying the other way around

test/jdk/java/util/Calendar/bug4243802.java line 48:

> 46:     void setUp() {
> 47:         Locale.setDefault(Locale.US);
> 48:         TimeZone.setDefault(TimeZone.getTimeZone("America/Los_Angeles"));

If the test is not going to restore the original defaults with `tearDown()`, I'd expect `othervm` explicitly on `@run` directive. (applies to other locations)

test/jdk/java/util/Calendar/bug4316678.java line 58:

> 56:     @Test
> 57:     public void serializationTest() throws IOException, ClassNotFoundException {
> 58:         TimeZone.setDefault(TimeZone.getTimeZone("PST"));

Not needed?

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PR Review Comment: https://git.openjdk.org/jdk/pull/15853#discussion_r1333653061
PR Review Comment: https://git.openjdk.org/jdk/pull/15853#discussion_r1333655945
PR Review Comment: https://git.openjdk.org/jdk/pull/15853#discussion_r1333663335
PR Review Comment: https://git.openjdk.org/jdk/pull/15853#discussion_r1333665846