diff --git a/test/test-config-parse-logsize.c b/test/test-config-parse-logsize.c
new file mode 100644
index 0000000..9c28b19
--- /dev/null
+++ b/test/test-config-parse-logsize.c
@@ -0,0 +1,70 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+
+// Bypass compilation error due to -DSYSCONFDIR not provided
+#define SYSCONFDIR
+
+#include "config.c"
+#include "console-server.h"
+
+struct test_parse_size_unit {
+	const char	*test_str;
+	size_t		expected_size;
+	int		expected_rc;
+};
+
+void test_config_parse_logsize(void)
+{
+	const struct test_parse_size_unit test_data[] = {
+		{"0",		0,		-1},
+		{"1",		1,		0},
+		{"4k",		4*1024,		0},
+		{"6M",		(6ul << 20),	0},
+		{"4095M",	(4095ul << 20),	0},
+		{"2G",		(2ul << 30),	0},
+		{"8M\n",	(8ul << 20),	0},	/* Suffix ignored */
+		{" 10k",	10*1024,	0},	/* Leading spaces trimmed */
+		{"10k ",	10*1024,	0},	/* Trailing spaces trimmed */
+		{"\r\t10k \r\t",10*1024,	0},	/* Spaces trimmed */
+		{" 10 kB ",	10*1024,	0},	/* Spaces trimmed */
+		{"11G",		0,		-1},	/* Overflow */
+		{"4294967296",	0,		-1},	/* Overflow */
+		{"4096M",	0,		-1},	/* Overflow */
+		{"65535G",	0,		-1},	/* Overflow */
+		{"xyz",		0,		-1},	/* Invalid */
+		{"000",		0,		-1},	/* Invalid */
+		{"0.1",		0,		-1},	/* Invalid */
+		{"9T",		0,		-1},	/* Invalid suffix */
+	};
+	const size_t num_tests = sizeof(test_data) /
+		sizeof(struct test_parse_size_unit);
+	size_t size;
+	int i, rc;
+
+	for (i = 0; i < num_tests; i++) {
+		rc = config_parse_logsize(test_data[i].test_str, &size);
+
+		if ((rc == -1 && rc != test_data[i].expected_rc) ||
+		    (rc == 0 && test_data[i].expected_size != size)) {
+			warn("[%d] Str %s expected size %lu rc %d,"
+                             " got size %lu rc %d\n",
+			     i,
+			     test_data[i].test_str,
+			     test_data[i].expected_size,
+			     test_data[i].expected_rc,
+			     size,
+			     rc);
+		}
+		assert(rc == test_data[i].expected_rc);
+		if (rc == 0)
+			assert(size == test_data[i].expected_size);
+	}
+}
+
+int main(void)
+{
+	test_config_parse_logsize();
+	return EXIT_SUCCESS;
+}