Merge https://salsa.debian.org/debian/libgit2 into proxmox/bullseye

[libgit2.git] / tests / libgit2 / filter / wildcard.c

diff --git a/tests/libgit2/filter/wildcard.c b/tests/libgit2/filter/wildcard.c
new file mode 100644 (file)
index 0000000..ee61a8d
--- /dev/null
+++ b/tests/libgit2/filter/wildcard.c
@@ -0,0 +1,188 @@
+#include "clar_libgit2.h"
+#include "posix.h"
+#include "blob.h"
+#include "filter.h"
+#include "git2/sys/filter.h"
+#include "git2/sys/repository.h"
+#include "custom_helpers.h"
+
+static git_repository *g_repo = NULL;
+
+static git_filter *create_wildcard_filter(void);
+
+#define DATA_LEN 32
+
+static unsigned char input[] = {
+       0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+       0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+       0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+       0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+};
+
+static unsigned char reversed[] = {
+       0x1f, 0x1e, 0x1d, 0x1c, 0x1b, 0x1a, 0x19, 0x18,
+       0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10,
+       0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08,
+       0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00,
+};
+
+static unsigned char flipped[] = {
+       0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8,
+       0xf7, 0xf6, 0xf5, 0xf4, 0xf3, 0xf2, 0xf1, 0xf0,
+       0xef, 0xee, 0xed, 0xec, 0xeb, 0xea, 0xe9, 0xe8,
+       0xe7, 0xe6, 0xe5, 0xe4, 0xe3, 0xe2, 0xe1, 0xe0,
+};
+
+void test_filter_wildcard__initialize(void)
+{
+       cl_git_pass(git_filter_register(
+               "wildcard", create_wildcard_filter(), GIT_FILTER_DRIVER_PRIORITY));
+
+       g_repo = cl_git_sandbox_init("empty_standard_repo");
+
+       cl_git_rewritefile(
+               "empty_standard_repo/.gitattributes",
+               "* binary\n"
+               "hero-flip-* filter=wcflip\n"
+               "hero-reverse-* filter=wcreverse\n"
+               "none-* filter=unregistered\n");
+}
+
+void test_filter_wildcard__cleanup(void)
+{
+       cl_git_pass(git_filter_unregister("wildcard"));
+
+       cl_git_sandbox_cleanup();
+       g_repo = NULL;
+}
+
+static int wildcard_filter_check(
+       git_filter  *self,
+       void **payload,
+       const git_filter_source *src,
+       const char **attr_values)
+{
+       GIT_UNUSED(self);
+       GIT_UNUSED(src);
+
+       if (strcmp(attr_values[0], "wcflip") == 0 ||
+               strcmp(attr_values[0], "wcreverse") == 0) {
+               *payload = git__strdup(attr_values[0]);
+               GIT_ERROR_CHECK_ALLOC(*payload);
+               return 0;
+       }
+
+       return GIT_PASSTHROUGH;
+}
+
+static int wildcard_filter_apply(
+       git_filter     *self,
+       void          **payload,
+       git_str        *to,
+       const git_str  *from,
+       const git_filter_source *source)
+{
+       const char *filtername = *payload;
+
+       if (filtername && strcmp(filtername, "wcflip") == 0)
+               return bitflip_filter_apply(self, payload, to, from, source);
+       else if (filtername && strcmp(filtername, "wcreverse") == 0)
+               return reverse_filter_apply(self, payload, to, from, source);
+
+       cl_fail("Unexpected attribute");
+       return GIT_PASSTHROUGH;
+}
+
+static int wildcard_filter_stream(
+       git_writestream **out,
+       git_filter *self,
+       void **payload,
+       const git_filter_source *src,
+       git_writestream *next)
+{
+       return git_filter_buffered_stream_new(out,
+               self, wildcard_filter_apply, NULL, payload, src, next);
+}
+
+static void wildcard_filter_cleanup(git_filter *self, void *payload)
+{
+       GIT_UNUSED(self);
+       git__free(payload);
+}
+
+static void wildcard_filter_free(git_filter *f)
+{
+       git__free(f);
+}
+
+static git_filter *create_wildcard_filter(void)
+{
+       git_filter *filter = git__calloc(1, sizeof(git_filter));
+       cl_assert(filter);
+
+       filter->version = GIT_FILTER_VERSION;
+       filter->attributes = "filter=*";
+       filter->check = wildcard_filter_check;
+       filter->stream = wildcard_filter_stream;
+       filter->cleanup = wildcard_filter_cleanup;
+       filter->shutdown = wildcard_filter_free;
+
+       return filter;
+}
+
+void test_filter_wildcard__reverse(void)
+{
+       git_filter_list *fl;
+       git_buf out = GIT_BUF_INIT;
+
+       cl_git_pass(git_filter_list_load(
+               &fl, g_repo, NULL, "hero-reverse-foo", GIT_FILTER_TO_ODB, 0));
+
+       cl_git_pass(git_filter_list_apply_to_buffer(&out, fl, (char *)input, DATA_LEN));
+
+       cl_assert_equal_i(DATA_LEN, out.size);
+
+       cl_assert_equal_i(
+               0, memcmp(reversed, out.ptr, out.size));
+
+       git_filter_list_free(fl);
+       git_buf_dispose(&out);
+}
+
+void test_filter_wildcard__flip(void)
+{
+       git_filter_list *fl;
+       git_buf out = GIT_BUF_INIT;
+
+       cl_git_pass(git_filter_list_load(
+               &fl, g_repo, NULL, "hero-flip-foo", GIT_FILTER_TO_ODB, 0));
+
+       cl_git_pass(git_filter_list_apply_to_buffer(&out, fl, (char *)input, DATA_LEN));
+
+       cl_assert_equal_i(DATA_LEN, out.size);
+
+       cl_assert_equal_i(
+               0, memcmp(flipped, out.ptr, out.size));
+
+       git_filter_list_free(fl);
+       git_buf_dispose(&out);
+}
+
+void test_filter_wildcard__none(void)
+{
+       git_filter_list *fl;
+       git_buf out = GIT_BUF_INIT;
+
+       cl_git_pass(git_filter_list_load(
+               &fl, g_repo, NULL, "none-foo", GIT_FILTER_TO_ODB, 0));
+
+       cl_git_pass(git_filter_list_apply_to_buffer(&out, fl, (char *)input, DATA_LEN));
+
+       cl_assert_equal_i(DATA_LEN, out.size);
+
+       cl_assert_equal_i(
+               0, memcmp(input, out.ptr, out.size));
+
+       git_filter_list_free(fl);
+       git_buf_dispose(&out);
+}