[gentoo-dev] [PATCH 2/3 v2] tree-sitter-grammar.eclass: Add src_test implementation

[matoro]

These packages have a standard way of implementing a test corpus that
can be invoked by "tree-sitter test" from dev-util/tree-sitter-cli.
Some have additional platform-specific tests that are invoked in a
custom manner, but these are on top of the basic test corpus.

See: 
https://tree-sitter.github.io/tree-sitter/creating-parsers#command-test
Bug: https://bugs.gentoo.org/844223
Closes: https://github.com/gentoo/gentoo/pull/28529
Signed-off-by: Matoro Mahri <matoro@××××××××××××××××××××.com>
---
  eclass/tree-sitter-grammar.eclass | 16 +++++++++++++++-
  1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/eclass/tree-sitter-grammar.eclass 
b/eclass/tree-sitter-grammar.eclass
index acdb8a7ad73..c607ea9ddfb 100644
--- a/eclass/tree-sitter-grammar.eclass
+++ b/eclass/tree-sitter-grammar.eclass
@@ -29,7 +29,11 @@ S="${WORKDIR}"/${PN}-${TS_PV:-${PV}}/src
  # Needed for tree_sitter/parser.h
  DEPEND="dev-libs/tree-sitter"

-EXPORT_FUNCTIONS src_compile src_install
+BDEPEND+=" test? ( dev-util/tree-sitter-cli )"
+IUSE+=" test"
+RESTRICT+=" !test? ( test )"
+
+EXPORT_FUNCTIONS src_compile src_test src_install

  # @ECLASS_VARIABLE: TS_PV
  # @PRE_INHERIT
@@ -89,6 +93,16 @@ tree-sitter-grammar_src_compile() {
                         -o "${WORKDIR}"/${soname}
  }

+# @FUNCTION: tree-sitter-grammar_src_test
+# @DESCRIPTION:
+# Runs the Tree Sitter parser's test suite.
+# See: 
https://tree-sitter.github.io/tree-sitter/creating-parsers#command-test
+tree-sitter-grammar_src_test() {
+       debug-print-function ${FUNCNAME} "${@}"
+
+       (cd .. && tree-sitter test) || die "Test suite failed"
+}
+
  # @FUNCTION: tree-sitter-grammar_src_install
  # @DESCRIPTION:
  # Installs the Tree Sitter parser library.
-- 
2.38.1