filter: test we can filter a blob in a bare repo

tests/filter/bare.c

+#include "clar_libgit2.h"
+#include "crlf.h"
+
+static git_repository *g_repo = NULL;
+static git_blob_filter_options filter_opts = GIT_BLOB_FILTER_OPTIONS_INIT;
+
+void test_filter_bare__initialize(void)
+{
+	cl_fixture_sandbox("crlf.git");
+	cl_git_pass(git_repository_open(&g_repo, "crlf.git"));
+
+	filter_opts.flags |= GIT_BLOB_FILTER_NO_SYSTEM_ATTRIBUTES;
+	filter_opts.flags |= GIT_BLOB_FILTER_ATTTRIBUTES_FROM_HEAD;
+}
+
+void test_filter_bare__cleanup(void)
+{
+	git_repository_free(g_repo);
+	cl_fixture_cleanup("crlf.git");
+}
+
+void test_filter_bare__all_crlf(void)
+{
+	git_blob *blob;
+	git_buf buf = { 0 };
+
+	cl_git_pass(git_revparse_single(
+		(git_object **)&blob, g_repo, "a9a2e89")); /* all-crlf */
+
+	cl_assert_equal_s(ALL_CRLF_TEXT_RAW, git_blob_rawcontent(blob));
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.bin", &filter_opts));
+
+	cl_assert_equal_s(ALL_CRLF_TEXT_RAW, buf.ptr);
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.crlf", &filter_opts));
+
+	/* in this case, raw content has crlf in it already */
+	cl_assert_equal_s(ALL_CRLF_TEXT_AS_CRLF, buf.ptr);
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.lf", &filter_opts));
+
+	/* we never convert CRLF -> LF on platforms that have LF */
+	cl_assert_equal_s(ALL_CRLF_TEXT_AS_CRLF, buf.ptr);
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.txt", &filter_opts));
+
+	/* in this case, raw content has crlf in it already */
+	cl_assert_equal_s(ALL_CRLF_TEXT_AS_CRLF, buf.ptr);
+
+	git_buf_dispose(&buf);
+	git_blob_free(blob);
+}
+
+void test_filter_bare__from_lf(void)
+{
+	git_blob *blob;
+	git_buf buf = { 0 };
+
+	cl_git_pass(git_revparse_single(
+		(git_object **)&blob, g_repo, "799770d")); /* all-lf */
+
+	cl_assert_equal_s(ALL_LF_TEXT_RAW, git_blob_rawcontent(blob));
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.bin", &filter_opts));
+
+	cl_assert_equal_s(ALL_LF_TEXT_RAW, buf.ptr);
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.crlf", &filter_opts));
+
+	/* in this case, raw content has crlf in it already */
+	cl_assert_equal_s(ALL_LF_TEXT_AS_CRLF, buf.ptr);
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.lf", &filter_opts));
+
+	/* we never convert CRLF -> LF on platforms that have LF */
+	cl_assert_equal_s(ALL_LF_TEXT_AS_LF, buf.ptr);
+
+	git_buf_dispose(&buf);
+	git_blob_free(blob);
+}
+
+void test_filter_bare__sanitizes(void)
+{
+	git_blob *blob;
+	git_buf buf = GIT_BUF_INIT;
+
+	cl_git_pass(git_revparse_single(
+		(git_object **)&blob, g_repo, "e69de29")); /* zero-byte */
+
+	cl_assert_equal_i(0, git_blob_rawsize(blob));
+	cl_assert_equal_s("", git_blob_rawcontent(blob));
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.bin", &filter_opts));
+	cl_assert_equal_sz(0, buf.size);
+	cl_assert_equal_s("", buf.ptr);
+	git_buf_dispose(&buf);
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.crlf", &filter_opts));
+	cl_assert_equal_sz(0, buf.size);
+	cl_assert_equal_s("", buf.ptr);
+	git_buf_dispose(&buf);
+
+	cl_git_pass(git_blob_filter(&buf, blob, "file.lf", &filter_opts));
+	cl_assert_equal_sz(0, buf.size);
+	cl_assert_equal_s("", buf.ptr);
+	git_buf_dispose(&buf);
+
+	git_blob_free(blob);
+}
+

tests/resources/crlf.git/COMMIT_EDITMSG

+Add .gitattributes

tests/resources/crlf.git/HEAD

+ref: refs/heads/master

tests/resources/crlf.git/config

+[core]
+	repositoryformatversion = 0
+	bare = true

tests/resources/crlf.git/logs/HEAD

+5afb6a14a864e30787857dd92af837e8cdd2cb1b 6b9d5748663795f573ea857276eb2a5f8330efa0 Edward Thomson <ethomson@edwardthomson.com> 1561324263 +0100	commit: Add .gitattributes

tests/resources/crlf.git/logs/refs/heads/master

+5afb6a14a864e30787857dd92af837e8cdd2cb1b 6b9d5748663795f573ea857276eb2a5f8330efa0 Edward Thomson <ethomson@edwardthomson.com> 1561324263 +0100	commit: Add .gitattributes

tests/resources/crlf.git/refs/heads/empty-files

+9687e444bcbb85645cb496080434c292f1b57182

tests/resources/crlf.git/refs/heads/master

+6b9d5748663795f573ea857276eb2a5f8330efa0