1 files changed, 61 insertions, 0 deletions
diff --git a/src/lib/test-imem.c b/src/lib/test-imem.c
new file mode 100644
index 0000000..c18c4aa
--- /dev/null
+++ b/src/lib/test-imem.c
@@ -0,0 +1,61 @@
+/* Copyright (c) 2017-2018 Dovecot authors, see the included COPYING file */
+
+#include "test-lib.h"
+
+struct test_struct {
+	uint32_t num[10];
+};
+
+static void test_imem_alloc(void)
+{
+	struct test_struct ab, bc, cd, de;
+
+	test_begin("imem allocs");
+
+	memset(ab.num, 0xab, sizeof(ab.num));
+	memset(bc.num, 0xbc, sizeof(bc.num));
+	memset(cd.num, 0xcd, sizeof(cd.num));
+	memset(de.num, 0xde, sizeof(de.num));
+
+	/* regular alloc */
+	struct test_struct *s1 = i_new(struct test_struct, 2);
+	struct test_struct *s2 = i_malloc(sizeof(struct test_struct) * 2);
+	s1[0] = ab; s2[0] = ab;
+	s1[1] = bc; s2[1] = bc;
+	test_assert(memcmp(s1, s2, sizeof(struct test_struct) * 2) == 0);
+
+	/* realloc */
+	s1 = i_realloc_type(s1, struct test_struct, 2, 4);
+	s2 = i_realloc(s2, sizeof(struct test_struct) * 2,
+		       sizeof(struct test_struct) * 4);
+	s1[2] = cd; s2[2] = cd;
+	s1[3] = de; s2[3] = de;
+	test_assert(memcmp(&s1[0], &ab, sizeof(ab)) == 0);
+	test_assert(memcmp(&s1[1], &bc, sizeof(bc)) == 0);
+	test_assert(memcmp(&s1[2], &cd, sizeof(cd)) == 0);
+	test_assert(memcmp(&s1[3], &de, sizeof(de)) == 0);
+	test_assert(memcmp(s1, s2, sizeof(struct test_struct) * 4) == 0);
+
+	/* freeing realloced memory */
+	i_free(s1);
+	i_free(s2);
+	test_assert(s1 == NULL);
+	test_assert(s2 == NULL);
+
+	/* allcating new memory with realloc */
+	s1 = i_realloc_type(NULL, struct test_struct, 0, 2);
+	s2 = i_realloc(NULL, 0, sizeof(struct test_struct) * 2);
+	s1[0] = ab; s2[0] = ab;
+	s1[1] = bc; s2[1] = bc;
+	test_assert(memcmp(s1, s2, sizeof(struct test_struct) * 2) == 0);
+
+	i_free(s1);
+	i_free(s2);
+
+	test_end();
+}
+
+void test_imem(void)
+{
+	test_imem_alloc();
+}