helper/test-oidtree.c along with t0069-oidtree.sh test the oidtree.h
library, which is a wrapper around crit-bit tree. Migrate them to
the unit testing framework for better debugging and runtime
performance.
To achieve this, introduce a new library called 'lib-oid.h'
exclusively for the unit tests to use. It currently mainly includes
utility to generate object_id from an arbitrary hex string
(i.e. '12a' -> '12a0000000000000000000000000000000000000').
This will also be helpful when we port other unit tests such
as oid-array, oidset etc.
Mentored-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@xxxxxxxxx>
Signed-off-by: Ghanshyam Thakkar <shyamthakkar001@xxxxxxxxx>
---
Makefile | 8 +++-
t/helper/test-oidtree.c | 54 ------------------------
t/helper/test-tool.c | 1 -
t/helper/test-tool.h | 1 -
t/t0069-oidtree.sh | 50 ----------------------
t/unit-tests/lib-oid.c | 52 +++++++++++++++++++++++
t/unit-tests/lib-oid.h | 17 ++++++++
t/unit-tests/t-oidtree.c | 91 ++++++++++++++++++++++++++++++++++++++++
8 files changed, 166 insertions(+), 108 deletions(-)
delete mode 100644 t/helper/test-oidtree.c
delete mode 100755 t/t0069-oidtree.sh
create mode 100644 t/unit-tests/lib-oid.c
create mode 100644 t/unit-tests/lib-oid.h
create mode 100644 t/unit-tests/t-oidtree.c
diff --git a/Makefile b/Makefile
index 59d98ba688..6c9927afae 100644
--- a/Makefile
+++ b/Makefile
@@ -811,7 +811,6 @@ TEST_BUILTINS_OBJS += test-mergesort.o
TEST_BUILTINS_OBJS += test-mktemp.o
TEST_BUILTINS_OBJS += test-oid-array.o
TEST_BUILTINS_OBJS += test-oidmap.o
-TEST_BUILTINS_OBJS += test-oidtree.o
TEST_BUILTINS_OBJS += test-online-cpus.o
TEST_BUILTINS_OBJS += test-pack-mtimes.o
TEST_BUILTINS_OBJS += test-parse-options.o
@@ -1335,6 +1334,7 @@ THIRD_PARTY_SOURCES += sha1dc/%
UNIT_TEST_PROGRAMS += t-ctype
UNIT_TEST_PROGRAMS += t-mem-pool
+UNIT_TEST_PROGRAMS += t-oidtree
UNIT_TEST_PROGRAMS += t-prio-queue
UNIT_TEST_PROGRAMS += t-strbuf
UNIT_TEST_PROGRAMS += t-strcmp-offset
@@ -1342,6 +1342,7 @@ UNIT_TEST_PROGRAMS += t-trailer
UNIT_TEST_PROGS = $(patsubst %,$(UNIT_TEST_BIN)/%$X,$(UNIT_TEST_PROGRAMS))
UNIT_TEST_OBJS = $(patsubst %,$(UNIT_TEST_DIR)/%.o,$(UNIT_TEST_PROGRAMS))
UNIT_TEST_OBJS += $(UNIT_TEST_DIR)/test-lib.o
+UNIT_TEST_OBJS += $(UNIT_TEST_DIR)/lib-oid.o
# xdiff and reftable libs may in turn depend on what is in libgit.a
GITLIBS = common-main.o $(LIB_FILE) $(XDIFF_LIB) $(REFTABLE_LIB) $(LIB_FILE)
@@ -3882,7 +3883,10 @@ $(FUZZ_PROGRAMS): %: %.o oss-fuzz/dummy-cmd-main.o $(GITLIBS) GIT-LDFLAGS
-Wl,--allow-multiple-definition \
$(filter %.o,$^) $(filter %.a,$^) $(LIBS) $(LIB_FUZZING_ENGINE)
-$(UNIT_TEST_PROGS): $(UNIT_TEST_BIN)/%$X: $(UNIT_TEST_DIR)/%.o $(UNIT_TEST_DIR)/test-lib.o $(GITLIBS) GIT-LDFLAGS
+$(UNIT_TEST_PROGS): $(UNIT_TEST_BIN)/%$X: $(UNIT_TEST_DIR)/%.o \
+ $(UNIT_TEST_DIR)/test-lib.o \
+ $(UNIT_TEST_DIR)/lib-oid.o \
+ $(GITLIBS) GIT-LDFLAGS
$(call mkdir_p_parent_template)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) \
$(filter %.o,$^) $(filter %.a,$^) $(LIBS)
diff --git a/t/helper/test-oidtree.c b/t/helper/test-oidtree.c
deleted file mode 100644
index c7a1d4c642..0000000000
--- a/t/helper/test-oidtree.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include "test-tool.h"
-#include "hex.h"
-#include "oidtree.h"
-#include "setup.h"
-#include "strbuf.h"
-
-static enum cb_next print_oid(const struct object_id *oid, void *data UNUSED)
-{
- puts(oid_to_hex(oid));
- return CB_CONTINUE;
-}
-
-int cmd__oidtree(int argc UNUSED, const char **argv UNUSED)
-{
- struct oidtree ot;
- struct strbuf line = STRBUF_INIT;
- int nongit_ok;
- int algo = GIT_HASH_UNKNOWN;
-
- oidtree_init(&ot);
- setup_git_directory_gently(&nongit_ok);
-
- while (strbuf_getline(&line, stdin) != EOF) {
- const char *arg;
- struct object_id oid;
-
- if (skip_prefix(line.buf, "insert ", &arg)) {
- if (get_oid_hex_any(arg, &oid) == GIT_HASH_UNKNOWN)
- die("insert not a hexadecimal oid: %s", arg);
- algo = oid.algo;
- oidtree_insert(&ot, &oid);
- } else if (skip_prefix(line.buf, "contains ", &arg)) {
- if (get_oid_hex(arg, &oid))
- die("contains not a hexadecimal oid: %s", arg);
- printf("%d\n", oidtree_contains(&ot, &oid));
- } else if (skip_prefix(line.buf, "each ", &arg)) {
- char buf[GIT_MAX_HEXSZ + 1] = { '0' };
- memset(&oid, 0, sizeof(oid));
- memcpy(buf, arg, strlen(arg));
- buf[hash_algos[algo].hexsz] = '\0';
- get_oid_hex_any(buf, &oid);
- oid.algo = algo;
- oidtree_each(&ot, &oid, strlen(arg), print_oid, NULL);
- } else if (!strcmp(line.buf, "clear")) {
- oidtree_clear(&ot);
- } else {
- die("unknown command: %s", line.buf);
- }
- }
-
- strbuf_release(&line);
-
- return 0;
-}
diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c
index 7ad7d07018..253324a06b 100644
--- a/t/helper/test-tool.c
+++ b/t/helper/test-tool.c
@@ -46,7 +46,6 @@ static struct test_cmd cmds[] = {
{ "mktemp", cmd__mktemp },
{ "oid-array", cmd__oid_array },
{ "oidmap", cmd__oidmap },
- { "oidtree", cmd__oidtree },
{ "online-cpus", cmd__online_cpus },
{ "pack-mtimes", cmd__pack_mtimes },
{ "parse-options", cmd__parse_options },
diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index d14b3072bd..460dd7d260 100644
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -39,7 +39,6 @@ int cmd__match_trees(int argc, const char **argv);
int cmd__mergesort(int argc, const char **argv);
int cmd__mktemp(int argc, const char **argv);
int cmd__oidmap(int argc, const char **argv);
-int cmd__oidtree(int argc, const char **argv);
int cmd__online_cpus(int argc, const char **argv);
int cmd__pack_mtimes(int argc, const char **argv);
int cmd__parse_options(int argc, const char **argv);
diff --git a/t/t0069-oidtree.sh b/t/t0069-oidtree.sh
deleted file mode 100755
index 889db50818..0000000000
--- a/t/t0069-oidtree.sh
+++ /dev/null
@@ -1,50 +0,0 @@
-#!/bin/sh
-
-test_description='basic tests for the oidtree implementation'
-TEST_PASSES_SANITIZE_LEAK=true
-. ./test-lib.sh
-
-maxhexsz=$(test_oid hexsz)
-echoid () {
- prefix="${1:+$1 }"
- shift
- while test $# -gt 0
- do
- shortoid="$1"
- shift
- difference=$(($maxhexsz - ${#shortoid}))
- printf "%s%s%0${difference}d\\n" "$prefix" "$shortoid" "0"
- done
-}
-
-test_expect_success 'oidtree insert and contains' '
- cat >expect <<-\EOF &&
- 0
- 0
- 0
- 1
- 1
- 0
- EOF
- {
- echoid insert 444 1 2 3 4 5 a b c d e &&
- echoid contains 44 441 440 444 4440 4444 &&
- echo clear
- } | test-tool oidtree >actual &&
- test_cmp expect actual
-'
-
-test_expect_success 'oidtree each' '
- echoid "" 123 321 321 >expect &&
- {
- echoid insert f 9 8 123 321 a b c d e &&
- echo each 12300 &&
- echo each 3211 &&
- echo each 3210 &&
- echo each 32100 &&
- echo clear
- } | test-tool oidtree >actual &&
- test_cmp expect actual
-'
-
-test_done
diff --git a/t/unit-tests/lib-oid.c b/t/unit-tests/lib-oid.c
new file mode 100644
index 0000000000..37105f0a8f
--- /dev/null
+++ b/t/unit-tests/lib-oid.c
@@ -0,0 +1,52 @@
+#include "test-lib.h"
+#include "lib-oid.h"
+#include "strbuf.h"
+#include "hex.h"
+
+static int init_hash_algo(void)
+{
+ static int algo = -1;
+
+ if (algo < 0) {
+ const char *algo_name = getenv("GIT_TEST_DEFAULT_HASH");
+ algo = algo_name ? hash_algo_by_name(algo_name) : GIT_HASH_SHA1;
+
+ if (!check(algo != GIT_HASH_UNKNOWN))
+ test_msg("BUG: invalid GIT_TEST_DEFAULT_HASH value ('%s')",
+ algo_name);
+ }
+ return algo;
+}
+
+static int get_oid_arbitrary_hex_algop(const char *hex, struct object_id *oid,
+ const struct git_hash_algo *algop)
+{
+ int ret;
+ size_t sz = strlen(hex);
+ struct strbuf buf = STRBUF_INIT;
+
+ if (!check(sz <= algop->hexsz)) {
+ test_msg("BUG: hex string (%s) bigger than maximum allowed (%lu)",
+ hex, (unsigned long)algop->hexsz);
+ return -1;
+ }
+
+ strbuf_add(&buf, hex, sz);
+ strbuf_addchars(&buf, '0', algop->hexsz - sz);
+
+ ret = get_oid_hex_algop(buf.buf, oid, algop);
+ if (!check_int(ret, ==, 0))
+ test_msg("BUG: invalid hex input (%s) provided", hex);
+
+ strbuf_release(&buf);
+ return ret;
+}
+
+int get_oid_arbitrary_hex(const char *hex, struct object_id *oid)
+{
+ int hash_algo = init_hash_algo();
+
+ if (!check_int(hash_algo, !=, GIT_HASH_UNKNOWN))
+ return -1;
+ return get_oid_arbitrary_hex_algop(hex, oid, &hash_algos[hash_algo]);
+}
diff --git a/t/unit-tests/lib-oid.h b/t/unit-tests/lib-oid.h
new file mode 100644
index 0000000000..bfde639190
--- /dev/null
+++ b/t/unit-tests/lib-oid.h
@@ -0,0 +1,17 @@
+#ifndef LIB_OID_H
+#define LIB_OID_H
+
+#include "hash-ll.h"
+
+/*
+ * Convert arbitrary hex string to object_id.
+ * For example, passing "abc12" will generate
+ * "abc1200000000000000000000000000000000000" hex of length 40 for SHA-1 and
+ * create object_id with that.
+ * WARNING: passing a string of length more than the hexsz of respective hash
+ * algo is not allowed. The hash algo is decided based on GIT_TEST_DEFAULT_HASH
+ * environment variable.
+ */
+int get_oid_arbitrary_hex(const char *s, struct object_id *oid);
+
+#endif /* LIB_OID_H */
diff --git a/t/unit-tests/t-oidtree.c b/t/unit-tests/t-oidtree.c
new file mode 100644
index 0000000000..0ebe17d2b9
--- /dev/null
+++ b/t/unit-tests/t-oidtree.c
@@ -0,0 +1,91 @@
+#include "test-lib.h"
+#include "lib-oid.h"
+#include "oidtree.h"
+#include "hash.h"
+#include "hex.h"
+
+#define FILL_TREE(tree, ...) \
+ do { \
+ const char *hexes[] = { __VA_ARGS__ }; \
+ if (fill_tree_loc(tree, hexes, ARRAY_SIZE(hexes))) \
+ return; \
+ } while (0)
+
+static int fill_tree_loc(struct oidtree *ot, const char *hexes[], int n)
+{
+ for (size_t i = 0; i < n; i++) {
+ struct object_id oid;
+ if (!check_int(get_oid_arbitrary_hex(hexes[i], &oid), ==, 0))
+ return -1;
+ oidtree_insert(ot, &oid);
+ }
+ return 0;
+}
+
+static void check_contains(struct oidtree *ot, const char *hex, int expected)
+{
+ struct object_id oid;
+
+ if (!check_int(get_oid_arbitrary_hex(hex, &oid), ==, 0))
+ return;
+ if (!check_int(oidtree_contains(ot, &oid), ==, expected))
+ test_msg("oid: %s", oid_to_hex(&oid));
+}
+
+static enum cb_next check_each_cb(const struct object_id *oid, void *data)
+{
+ const char *hex = data;
+ struct object_id expected;
+
+ if (!check_int(get_oid_arbitrary_hex(hex, &expected), ==, 0))
+ return CB_CONTINUE;
+ if (!check(oideq(oid, &expected)))
+ test_msg("expected: %s\n got: %s",
+ hash_to_hex(expected.hash), hash_to_hex(oid->hash));
+ return CB_CONTINUE;
+}
+
+static void check_each(struct oidtree *ot, char *hex, char *expected)
+{
+ struct object_id oid;
+
+ if (!check_int(get_oid_arbitrary_hex(hex, &oid), ==, 0))
+ return;
+ oidtree_each(ot, &oid, 40, check_each_cb, expected);
+}
+
+static void setup(void (*f)(struct oidtree *ot))
+{
+ struct oidtree ot;
+
+ oidtree_init(&ot);
+ f(&ot);
+ oidtree_clear(&ot);
+}
+
+static void t_contains(struct oidtree *ot)
+{
+ FILL_TREE(ot, "444", "1", "2", "3", "4", "5", "a", "b", "c", "d", "e");
+ check_contains(ot, "44", 0);
+ check_contains(ot, "441", 0);
+ check_contains(ot, "440", 0);
+ check_contains(ot, "444", 1);
+ check_contains(ot, "4440", 1);
+ check_contains(ot, "4444", 0);
+}
+
+static void t_each(struct oidtree *ot)
+{
+ FILL_TREE(ot, "f", "9", "8", "123", "321", "a", "b", "c", "d", "e");
+ check_each(ot, "12300", "123");
+ check_each(ot, "3211", ""); /* should not reach callback */
+ check_each(ot, "3210", "321");
+ check_each(ot, "32100", "321");
+}
+
+int cmd_main(int argc UNUSED, const char **argv UNUSED)
+{
+ TEST(setup(t_contains), "oidtree insert and contains works");
+ TEST(setup(t_each), "oidtree each works");
+ return test_done();
+}
--
2.45.2
