From 49ad475df150584a9e59649b48dec1f3bed2bffb Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Tue, 30 Jun 2020 12:54:40 -0400
Subject: add simple realloc() test

---
 .gitignore     |  1 +
 Makefile       | 14 +++++++++-----
 test/realloc.c | 18 ++++++++++++++++++
 3 files changed, 28 insertions(+), 5 deletions(-)
 create mode 100644 test/realloc.c

diff --git a/.gitignore b/.gitignore
index d07f0ab..7f24563 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 lib/
 obj/
+bin/
diff --git a/Makefile b/Makefile
index e8a413f..accf611 100644
--- a/Makefile
+++ b/Makefile
@@ -9,9 +9,11 @@ TESTDIR=test
 CFLAGS=-I$(INCDIR) -Wall -Wextra -Wpedantic -g
 
 OBJECTS=$(OBJDIR)/mapalloc.o
-TESTS=$(BINDIR)/overflow $(BINDIR)/underflow $(BINDIR)/zero
+TESTS=$(BINDIR)/overflow $(BINDIR)/underflow $(BINDIR)/zero $(BINDIR)/realloc
 
-all: $(LIBDIR)/libmapalloc.a $(LIBDIR)/libmapalloc.so
+all: $(LIBDIR)/libmapalloc.a 
+
+#$(LIBDIR)/libmapalloc.so
 
 tests: $(TESTS)
 
@@ -27,9 +29,11 @@ $(LIBDIR)/libmapalloc.so: $(OBJECTS)
 	@mkdir -p $(@D)
 	$(CC) -o $@ -shared $(OBJECTS)
 
-$(BINDIR)/overflow: $(TESTDIR)/overflow.c $(LIBDIR)/libmapalloc.a
-$(BINDIR)/underflow: $(TESTDIR)/underflow.c $(LIBDIR)/libmapalloc.a
-$(BINDIR)/zero: $(TESTDIR)/zero.c $(LIBDIR)/libmapalloc.a
+$(TESTS): $(LIBDIR)/libmapalloc.a
+$(BINDIR)/overflow: $(TESTDIR)/overflow.c
+$(BINDIR)/underflow: $(TESTDIR)/underflow.c
+$(BINDIR)/zero: $(TESTDIR)/zero.c
+$(BINDIR)/realloc: $(TESTDIR)/realloc.c
 
 $(TESTS):
 	@mkdir -p $(@D)
diff --git a/test/realloc.c b/test/realloc.c
new file mode 100644
index 0000000..c54f270
--- /dev/null
+++ b/test/realloc.c
@@ -0,0 +1,18 @@
+#define _POSIX_C_SOURCE 200809L
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "mapalloc.h"
+
+int main(void)
+{
+	const char buf[] = "THIS IS A CONSTANT STRING";
+
+	char *ptr = map_realloc(NULL, sizeof(buf));
+	memcpy(ptr, buf, sizeof(buf));
+	printf("%p: %s\n", ptr, ptr);
+
+	ptr = map_realloc(ptr, sizeof(buf) * 2);
+	memcpy(ptr + sizeof(buf), buf, sizeof(buf));
+	printf("%p: %s\n", ptr, ptr);
+}
-- 
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