From 2c9248f6f87bfc7a30258bf9e153e7d6d628309e Mon Sep 17 00:00:00 2001
From: Ahmet Inan <inan@aicodix.de>
Date: Sun, 29 Jul 2018 08:01:56 +0200
Subject: [PATCH] added check for CRC with example from README

---
 tests/Makefile |  5 +++--
 tests/crc.cc   | 19 +++++++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)
 create mode 100644 tests/crc.cc

diff --git a/tests/Makefile b/tests/Makefile
index 47a7852..85193d0 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -5,9 +5,10 @@ CXX = clang++ -stdlib=libc++
 
 .PHONY: clean test
 
-test: kahan
+test: kahan crc
 	./kahan
+	./crc
 
 clean:
-	rm -f kahan
+	rm -f kahan crc
 
diff --git a/tests/crc.cc b/tests/crc.cc
new file mode 100644
index 0000000..6834f97
--- /dev/null
+++ b/tests/crc.cc
@@ -0,0 +1,19 @@
+/*
+Test for the Cyclic redundancy check
+
+Copyright 2018 Ahmet Inan <inan@aicodix.de>
+*/
+
+#include <cassert>
+#include <iostream>
+#include "crc.hh"
+
+int main()
+{
+	DSP::CRC<uint32_t> crc(0xEDB88320, 0xFFFFFFFF);
+	for (uint8_t c: std::string("Hello World!")) crc(c);
+	assert(!crc(uint32_t(~0x1C291CA3)));
+	std::cerr << "Cyclic redundancy check test passed!" << std::endl;
+	return 0;
+}
+