diff --git a/regress/unittests/misc/test_argv.c b/regress/unittests/misc/test_argv.c
new file mode 100644
index 000000000..0ce86694d
--- /dev/null
+++ b/regress/unittests/misc/test_argv.c
@@ -0,0 +1,139 @@
+/* 	$OpenBSD: test_argv.c,v 1.1 2021/03/19 04:23:50 djm Exp $ */
+/*
+ * Regress test for misc argv handling functions.
+ *
+ * Placed in the public domain.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "test_helper.h"
+
+#include "log.h"
+#include "misc.h"
+
+void test_argv(void);
+
+static void
+free_argv(char **av, int ac)
+{
+	int i;
+
+	for (i = 0; i < ac; i++)
+		free(av[i]);
+	free(av);
+}
+
+void
+test_argv(void)
+{
+	char **av = NULL;
+	int ac = 0;
+
+#define RESET_ARGV() \
+	do { \
+		free_argv(av, ac); \
+		av = NULL; \
+		ac = -1; \
+	} while (0)
+
+	TEST_START("empty args");
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 0);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_PTR_EQ(av[0], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("    ", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 0);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_PTR_EQ(av[0], NULL);
+	TEST_DONE();
+
+	TEST_START("trivial args");
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("leamas", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 1);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "leamas");
+	ASSERT_PTR_EQ(av[1], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("smiley leamas", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 2);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "smiley");
+	ASSERT_STRING_EQ(av[1], "leamas");
+	ASSERT_PTR_EQ(av[2], NULL);
+	TEST_DONE();
+
+	TEST_START("quoted");
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("\"smiley\"", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 1);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "smiley");
+	ASSERT_PTR_EQ(av[1], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("leamas \" smiley \"", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 2);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "leamas");
+	ASSERT_STRING_EQ(av[1], " smiley ");
+	ASSERT_PTR_EQ(av[2], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("\"smiley leamas\"", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 1);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "smiley leamas");
+	ASSERT_PTR_EQ(av[1], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("smiley\" leamas\" liz", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 2);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "smiley leamas");
+	ASSERT_STRING_EQ(av[1], "liz");
+	ASSERT_PTR_EQ(av[2], NULL);
+	TEST_DONE();
+
+	TEST_START("escaped");
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("\\\"smiley\\'", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 1);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "\"smiley'");
+	ASSERT_PTR_EQ(av[1], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("'\\'smiley\\\"'", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 1);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "'smiley\"");
+	ASSERT_PTR_EQ(av[1], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("smiley\\'s leamas\\'", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 2);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "smiley's");
+	ASSERT_STRING_EQ(av[1], "leamas'");
+	ASSERT_PTR_EQ(av[2], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("leamas\\\\smiley", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 1);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "leamas\\smiley");
+	ASSERT_PTR_EQ(av[1], NULL);
+	RESET_ARGV();
+	ASSERT_INT_EQ(argv_split("leamas\\\\ \\\\smiley", &ac, &av), 0);
+	ASSERT_INT_EQ(ac, 2);
+	ASSERT_PTR_NE(av, NULL);
+	ASSERT_STRING_EQ(av[0], "leamas\\");
+	ASSERT_STRING_EQ(av[1], "\\smiley");
+	ASSERT_PTR_EQ(av[2], NULL);
+	TEST_DONE();
+
+	/* XXX test char *argv_assemble(int argc, char **argv) */
+}