[PR PATCH] json-c++: run all tests that don't require a git checkout

[JamiKettunen <JamiKettunen@users.noreply.github.com>]

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There is a new pull request by JamiKettunen against master on the void-packages repository

https://github.com/JamiKettunen/void-packages json-c++-tests
https://github.com/void-linux/void-packages/pull/37291

json-c++: run all tests that don't require a git checkout
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Running the unit tests (including without a git checkout) [is documented here](https://github.com/nlohmann/json#execute-unit-tests).

#### Testing the changes
- I tested the changes in this PR: **briefly**

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A patch file from https://github.com/void-linux/void-packages/pull/37291.patch is attached

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From 2cfb494f627abe469e86fac6ead5ccc31cd1b707 Mon Sep 17 00:00:00 2001
From: Jami Kettunen <jami.kettunen@protonmail.com>
Date: Wed, 25 May 2022 16:08:38 +0300
Subject: [PATCH] json-c++: run all tests that don't require a git checkout

---
 srcpkgs/json-c++/template | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/srcpkgs/json-c++/template b/srcpkgs/json-c++/template
index 018ef8e1ff74..c0f8729ed021 100644
--- a/srcpkgs/json-c++/template
+++ b/srcpkgs/json-c++/template
@@ -1,7 +1,7 @@
 # Template file for 'json-c++'
 pkgname=json-c++
 version=3.10.5
-revision=1
+revision=2
 wrksrc="json-${version}"
 build_style=cmake
 configure_args="-DJSON_MultipleHeaders=ON"
@@ -12,9 +12,12 @@ license="MIT"
 homepage="https://github.com/nlohmann/json"
 distfiles="https://github.com/nlohmann/json/archive/v${version}.tar.gz"
 checksum=5daca6ca216495edf89d167f808d1d03c4a4d929cef7da5e10f135ae1540c7e4
-# tests only work in git repository
-make_check=no
 
+do_check() {
+	# skip tests requiring wrksrc to be a git clone as they always fail
+	cd build
+	ctest -LE "git_required"
+}
 
 post_install() {
 	vdoc README.md