Helped-by: Jeff King <peff@xxxxxxxx>
Helped-by: Eric Sunshine <sunshine@xxxxxxxxxxxxxx>
Signed-off-by: Rene Scharfe <l.s.r@xxxxxx>
---
Added a test for looking up a non-existing entry in an array that
contains duplicates, as suggested by Jeff. Changed echo20() to add
a space after the prefix as needed, as suggested by Eric.
.gitignore | 1 +
Makefile | 1 +
t/t0064-sha1-array.sh | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++
test-sha1-array.c | 34 +++++++++++++++++++++++
4 files changed, 110 insertions(+)
create mode 100755 t/t0064-sha1-array.sh
create mode 100644 test-sha1-array.c
diff --git a/.gitignore b/.gitignore
index 5bfb234..9ec40fa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -199,6 +199,7 @@
/test-revision-walking
/test-run-command
/test-sha1
+/test-sha1-array
/test-sigchain
/test-string-list
/test-subprocess
diff --git a/Makefile b/Makefile
index f34a2d4..356feb5 100644
--- a/Makefile
+++ b/Makefile
@@ -568,6 +568,7 @@ TEST_PROGRAMS_NEED_X += test-revision-walking
TEST_PROGRAMS_NEED_X += test-run-command
TEST_PROGRAMS_NEED_X += test-scrap-cache-tree
TEST_PROGRAMS_NEED_X += test-sha1
+TEST_PROGRAMS_NEED_X += test-sha1-array
TEST_PROGRAMS_NEED_X += test-sigchain
TEST_PROGRAMS_NEED_X += test-string-list
TEST_PROGRAMS_NEED_X += test-subprocess
diff --git a/t/t0064-sha1-array.sh b/t/t0064-sha1-array.sh
new file mode 100755
index 0000000..3f26e11
--- /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
diff --git a/test-sha1-array.c b/test-sha1-array.c
new file mode 100644
index 0000000..ddc491e
--- /dev/null
+++ b/test-sha1-array.c
@@ -0,0 +1,34 @@
+#include "cache.h"
+#include "sha1-array.h"
+
+static void print_sha1(const unsigned char sha1[20], void *data)
+{
+ puts(sha1_to_hex(sha1));
+}
+
+int main(int argc, char **argv)
+{
+ struct sha1_array array = SHA1_ARRAY_INIT;
+ struct strbuf line = STRBUF_INIT;
+
+ while (strbuf_getline(&line, stdin, '\n') != EOF) {
+ const char *arg;
+ unsigned char sha1[20];
+
+ if (skip_prefix(line.buf, "append ", &arg)) {
+ if (get_sha1_hex(arg, sha1))
+ die("not a hexadecimal SHA1: %s", arg);
+ sha1_array_append(&array, sha1);
+ } else if (skip_prefix(line.buf, "lookup ", &arg)) {
+ if (get_sha1_hex(arg, sha1))
+ die("not a hexadecimal SHA1: %s", arg);
+ printf("%d\n", sha1_array_lookup(&array, sha1));
+ } else if (!strcmp(line.buf, "clear"))
+ sha1_array_clear(&array);
+ else if (!strcmp(line.buf, "for_each_unique"))
+ sha1_array_for_each_unique(&array, print_sha1, NULL);
+ else
+ die("unknown command: %s", line.buf);
+ }
+ return 0;
+}
--
2.1.2
--
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