Fix System.Globalization.Extensions.Tests for icu 74/unicode 15.1

[omajid]

The test file IdnaTest_15_1.txt is a direct copy of https://www.unicode.org/Public/idna/15.1.0/IdnaTestV2.txt without any further changes.

The tests all pass for me, which is a bit surprising. I was expecting to have to make this change: https://github.com/dotnet/runtime/pull/37281/files#diff-7fa33f56158b96efd2781ca446ea660029e4b588b4ae788cd72800e461fee83a

Fixes: #100287

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[tarekgh]

13

15?

[omajid]

Should be fixed now. Any idea how I can exercise this test suite?

[tarekgh]

Need to manually run the test on a machine/container having ICU 74. I thought you already did that.

[omajid]

Yes. Here's how I did it:

$ cd runtime
$ ./build.sh
$ cd src/libraries/System.Runtime/tests/System.Globalization.Extensions.Tests/
$ ../../../../../dotnet.sh build /t:Test

That failed before the changes in the PR and passed after. However, that didn't fail even with the typo in this file, so I am wondering if there's more specific I need to do validate NlsTests and/or changes to this file.

[tarekgh]

This test is not using ICU at all. It runs on NLS. It looks, NLS results are resilient to both v13 and v15. The original failure we are trying to fix is specific when using ICU. As long as the test pass when using ICU, that will be good enough.

[tarekgh]

Curious, are you running on Windows?

[omajid]

No, only Fedora 40 here.

[tarekgh]

Ok, that explain it :-) NlsTests are Windows only tests that will not run on Fedora.

[tarekgh]

Thanks @omajid. I added minor comments. LGTM, otherwise.

[tarekgh]

/backport to release/8.0-staging

[github-actions]

Started backporting to release/8.0-staging: https://github.com/dotnet/runtime/actions/runs/12209500472

[github-actions]

@tarekgh backporting to release/8.0-staging failed, the patch most likely resulted in conflicts:

$ git am --3way --empty=keep --ignore-whitespace --keep-non-patch changes.patch

Applying: Fix System.Globalization.Extensions.Tests for icu 74/unicode 15.1
.git/rebase-apply/patch:533: trailing whitespace.
\u200D; ; [C2]; xn--1ug; ; ; [A4_2] # 
.git/rebase-apply/patch:534: trailing whitespace.
; ; [X4_2]; ; [A4_2]; ;  # 
.git/rebase-apply/patch:535: trailing whitespace.
xn--1ug; \u200D; [C2]; xn--1ug; ; ;  # 
.git/rebase-apply/patch:540: trailing whitespace.
\u200C; ; [C1]; xn--0ug; ; ; [A4_2] # 
.git/rebase-apply/patch:541: trailing whitespace.
xn--0ug; \u200C; [C1]; xn--0ug; ; ;  # 
warning: squelched 1 whitespace error
warning: 6 lines add whitespace errors.
Using index info to reconstruct a base tree...
A	src/libraries/System.Runtime/tests/System.Globalization.Extensions.Tests/IdnMapping/Data/Factory.cs
A	src/libraries/System.Runtime/tests/System.Globalization.Extensions.Tests/NlsTests/System.Globalization.Extensions.Nls.Tests.csproj
A	src/libraries/System.Runtime/tests/System.Globalization.Extensions.Tests/System.Globalization.Extensions.Tests.csproj
Falling back to patching base and 3-way merge...
Auto-merging src/libraries/System.Globalization.Extensions/tests/IdnMapping/Data/Factory.cs
CONFLICT (content): Merge conflict in src/libraries/System.Globalization.Extensions/tests/IdnMapping/Data/Factory.cs
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
hint: When you have resolved this problem, run "git am --continue".
hint: If you prefer to skip this patch, run "git am --skip" instead.
hint: To restore the original branch and stop patching, run "git am --abort".
hint: Disable this message with "git config advice.mergeConflict false"
Patch failed at 0001 Fix System.Globalization.Extensions.Tests for icu 74/unicode 15.1
Error: The process '/usr/bin/git' failed with exit code 128

Please backport manually!