sha1-array: add test-sha1-array and basic tests

Helped-by: Jeff King <peff@peff.net>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/t/t0064-sha1-array.sh b/t/t0064-sha1-array.sh
new file mode 100755
index 000000000..06549656c
--- /dev/null
+++ b/t/t0064-sha1-array.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+
+test_description='basic tests for the SHA1 array implementation'
+. ./test-lib.sh
+
+echo20 () {
+	prefix="${1:+$1 }"
+	shift
+	while test $# -gt 0
+	do
+		echo "$prefix$1$1$1$1$1$1$1$1$1$1$1$1$1$1$1$1$1$1$1$1"
+		shift
+	done
+}
+
+test_expect_success 'ordered enumeration' '
+	echo20 "" 44 55 88 aa >expect &&
+	{
+		echo20 append 88 44 aa 55 &&
+		echo for_each_unique
+	} | test-sha1-array >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'ordered enumeration with duplicate suppression' '
+	echo20 "" 44 55 88 aa >expect &&
+	{
+		echo20 append 88 44 aa 55 &&
+		echo20 append 88 44 aa 55 &&
+		echo for_each_unique
+	} | test-sha1-array >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'lookup' '
+	{
+		echo20 append 88 44 aa 55 &&
+		echo20 lookup 55
+	} | test-sha1-array >actual &&
+	n=$(cat actual) &&
+	test "$n" -eq 1
+'
+
+test_expect_success 'lookup non-existing entry' '
+	{
+		echo20 append 88 44 aa 55 &&
+		echo20 lookup 33
+	} | test-sha1-array >actual &&
+	n=$(cat actual) &&
+	test "$n" -lt 0
+'
+
+test_expect_success 'lookup with duplicates' '
+	{
+		echo20 append 88 44 aa 55 &&
+		echo20 append 88 44 aa 55 &&
+		echo20 lookup 55
+	} | test-sha1-array >actual &&
+	n=$(cat actual) &&
+	test "$n" -ge 2 &&
+	test "$n" -le 3
+'
+
+test_expect_success 'lookup non-existing entry with duplicates' '
+	{
+		echo20 append 88 44 aa 55 &&
+		echo20 append 88 44 aa 55 &&
+		echo20 lookup 66
+	} | test-sha1-array >actual &&
+	n=$(cat actual) &&
+	test "$n" -lt 0
+'
+
+test_done