Go 1.25で増えるtesting.T.Attrメソッドについて

The new methods T.Attr, B.Attr, and F.Attr emit an attribute to the test log. An attribute is an arbitrary key and value associated with a test.

For example, in a test named TestAttr, t.Attr("key", "value") emits:

=== ATTR TestAttr key value

Attr emits a test attribute associated with this test.

The key must not contain whitespace. The value must not contain newlines or carriage returns.

The meaning of different attribute keys is left up to continuous integration systems and test frameworks.

Test attributes are emitted immediately in the test log, but they are intended to be treated as unordered.

T.Attr、B.Attr、F.Attr

テストログに属性を出力します。

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日本語の情報があんまりないので自分で調べた