From 3369e345678aaa4199b76a099c750ed00754c548 Mon Sep 17 00:00:00 2001
From: Stefan Boberg <stefan@boberg.org>
Date: Tue, 21 Nov 2023 13:42:53 +0100
Subject: basic ZEN_ASSERT_FORMAT implementation (#556)

includes porting some compact binary builder code to use it since it had vestiges of the UE-side asserts
---
 src/zencore/zencore.cpp | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'src/zencore/zencore.cpp')

diff --git a/src/zencore/zencore.cpp b/src/zencore/zencore.cpp
index 5406af097..eed903f54 100644
--- a/src/zencore/zencore.cpp
+++ b/src/zencore/zencore.cpp
@@ -10,6 +10,7 @@
 #	include <pthread.h>
 #endif
 
+#include <zencore/assertfmt.h>
 #include <zencore/blake3.h>
 #include <zencore/compactbinary.h>
 #include <zencore/compactbinarybuilder.h>
@@ -34,6 +35,22 @@
 #include <zencore/uid.h>
 #include <zencore/workthreadpool.h>
 
+#include <fmt/format.h>
+
+namespace zen::assert {
+
+void
+ExecAssertFmt(const char* Filename, int LineNumber, const char* FunctionName, std::string_view Format, fmt::format_args Args)
+{
+	fmt::basic_memory_buffer<char, 1024> Message;
+	fmt::vformat_to(fmt::appender(Message), Format, Args);
+	Message.push_back('\0');
+
+	AssertImpl::ExecAssert(Filename, LineNumber, FunctionName, Message.data());
+}
+
+}  // namespace zen::assert
+
 namespace zen {
 
 void refcount_forcelink();
@@ -144,6 +161,8 @@ zencore_forcelinktests()
 
 namespace zen {
 
+TEST_SUITE_BEGIN("core.assert");
+
 TEST_CASE("Assert.Default")
 {
 	bool A = true;
@@ -151,6 +170,13 @@ TEST_CASE("Assert.Default")
 	CHECK_THROWS_WITH(ZEN_ASSERT(A == B), "A == B");
 }
 
+TEST_CASE("Assert.Format")
+{
+	bool A = true;
+	bool B = false;
+	CHECK_THROWS_WITH(ZEN_ASSERT_FORMAT(A == B, "{} == {}", A, B), "assert(A == B) failed: true == false");
+}
+
 TEST_CASE("Assert.Custom")
 {
 	struct MyAssertImpl : AssertImpl
@@ -185,6 +211,7 @@ TEST_CASE("Assert.Custom")
 	CHECK(strcmp(MyAssert.Message, "A == B") == 0);
 }
 
+TEST_SUITE_END();
 #endif
 
 }  // namespace zen
-- 
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