1 files changed, 269 insertions, 0 deletions
diff --git a/tests/clar/clar_libgit2.h b/tests/clar/clar_libgit2.h
new file mode 100644
index 0000000..c33b5d2
--- /dev/null
+++ b/tests/clar/clar_libgit2.h
@@ -0,0 +1,269 @@
+#ifndef __CLAR_LIBGIT2__
+#define __CLAR_LIBGIT2__
+
+#include "clar.h"
+#include <git2.h>
+#include "common.h"
+#include "posix.h"
+#include "oid.h"
+
+/**
+ * Replace for `clar_must_pass` that passes the last library error as the
+ * test failure message.
+ *
+ * Use this wrapper around all `git_` library calls that return error codes!
+ */
+#define cl_git_pass(expr) cl_git_expect((expr), 0, __FILE__, __func__, __LINE__)
+
+#define cl_git_fail_with(error, expr) cl_git_expect((expr), error, __FILE__, __func__, __LINE__)
+
+#define cl_git_expect(expr, expected, file, func, line) do { \
+	int _lg2_error; \
+	git_error_clear(); \
+	if ((_lg2_error = (expr)) != expected) \
+		cl_git_report_failure(_lg2_error, expected, file, func, line, "Function call failed: " #expr); \
+	} while (0)
+
+/**
+ * Wrapper for `clar_must_fail` -- this one is
+ * just for consistency. Use with `git_` library
+ * calls that are supposed to fail!
+ */
+#define cl_git_fail(expr) do { \
+	if ((expr) == 0) \
+		git_error_clear(), \
+		cl_git_report_failure(0, 0, __FILE__, __func__, __LINE__, "Function call succeeded: " #expr); \
+	} while (0)
+
+/**
+ * Like cl_git_pass, only for Win32 error code conventions
+ */
+#define cl_win32_pass(expr) do { \
+	int _win32_res; \
+	if ((_win32_res = (expr)) == 0) { \
+		git_error_set(GIT_ERROR_OS, "Returned: %d, system error code: %lu", _win32_res, GetLastError()); \
+		cl_git_report_failure(_win32_res, 0, __FILE__, __func__, __LINE__, "System call failed: " #expr); \
+	} \
+	} while(0)
+
+/**
+ * Thread safe assertions; you cannot use `cl_git_report_failure` from a
+ * child thread since it will try to `longjmp` to abort and "the effect of
+ * a call to longjmp() where initialization of the jmp_buf structure was
+ * not performed in the calling thread is undefined."
+ *
+ * Instead, callers can provide a clar thread error context to a thread,
+ * which will populate and return it on failure.  Callers can check the
+ * status with `cl_git_thread_check`.
+ */
+typedef struct {
+	int error;
+	const char *file;
+	const char *func;
+	int line;
+	const char *expr;
+	char error_msg[4096];
+} cl_git_thread_err;
+
+#ifdef GIT_THREADS
+# define cl_git_thread_pass(threaderr, expr) cl_git_thread_pass_(threaderr, (expr), __FILE__, __func__, __LINE__)
+#else
+# define cl_git_thread_pass(threaderr, expr) cl_git_pass(expr)
+#endif
+
+#define cl_git_thread_pass_(__threaderr, __expr, __file, __func, __line) do { \
+	git_error_clear(); \
+	if ((((cl_git_thread_err *)__threaderr)->error = (__expr)) != 0) { \
+		const git_error *_last = git_error_last(); \
+		((cl_git_thread_err *)__threaderr)->file = __file; \
+		((cl_git_thread_err *)__threaderr)->func = __func; \
+		((cl_git_thread_err *)__threaderr)->line = __line; \
+		((cl_git_thread_err *)__threaderr)->expr = "Function call failed: " #__expr; \
+		p_snprintf(((cl_git_thread_err *)__threaderr)->error_msg, 4096, "thread 0x%" PRIxZ " - error %d - %s", \
+			git_thread_currentid(), ((cl_git_thread_err *)__threaderr)->error, \
+			_last ? _last->message : "<no message>"); \
+		git_thread_exit(__threaderr); \
+	} \
+	} while (0)
+
+GIT_INLINE(void) cl_git_thread_check(void *data)
+{
+	cl_git_thread_err *threaderr = (cl_git_thread_err *)data;
+	if (threaderr->error != 0)
+		clar__assert(0, threaderr->file, threaderr->func, threaderr->line, threaderr->expr, threaderr->error_msg, 1);
+}
+
+void cl_git_report_failure(int, int, const char *, const char *, int, const char *);
+
+#define cl_assert_at_line(expr,file,func,line) \
+	clar__assert((expr) != 0, file, func, line, "Expression is not true: " #expr, NULL, 1)
+
+GIT_INLINE(void) clar__assert_in_range(
+	int lo, int val, int hi,
+	const char *file, const char *func, int line,
+	const char *err, int should_abort)
+{
+	if (lo > val || hi < val) {
+		char buf[128];
+		p_snprintf(buf, sizeof(buf), "%d not in [%d,%d]", val, lo, hi);
+		clar__fail(file, func, line, err, buf, should_abort);
+	}
+}
+
+#define cl_assert_equal_sz(sz1,sz2) do { \
+	size_t __sz1 = (size_t)(sz1), __sz2 = (size_t)(sz2); \
+	clar__assert_equal(__FILE__,__func__,__LINE__,#sz1 " != " #sz2, 1, "%"PRIuZ, __sz1, __sz2); \
+} while (0)
+
+#define cl_assert_in_range(L,V,H) \
+	clar__assert_in_range((L),(V),(H),__FILE__,__func__,__LINE__,"Range check: " #V " in [" #L "," #H "]", 1)
+
+#define cl_assert_equal_file(DATA,SIZE,PATH) \
+	clar__assert_equal_file(DATA,SIZE,0,PATH,__FILE__,__func__,(int)__LINE__)
+
+#define cl_assert_equal_file_ignore_cr(DATA,SIZE,PATH) \
+	clar__assert_equal_file(DATA,SIZE,1,PATH,__FILE__,__func__,(int)__LINE__)
+
+void clar__assert_equal_file(
+	const char *expected_data,
+	size_t expected_size,
+	int ignore_cr,
+	const char *path,
+	const char *file,
+	const char *func,
+	int line);
+
+GIT_INLINE(void) clar__assert_equal_oid(
+	const char *file, const char *func, int line, const char *desc,
+	const git_oid *one, const git_oid *two)
+{
+
+	if (git_oid_equal(one, two))
+		return;
+
+	if (git_oid_type(one) != git_oid_type(two)) {
+		char err[64];
+
+		snprintf(err, 64, "different oid types: %d vs %d", git_oid_type(one), git_oid_type(two));
+		clar__fail(file, func, line, desc, err, 1);
+	} else if (git_oid_type(one) == GIT_OID_SHA1) {
+		char err[] = "\"........................................\" != \"........................................\"";
+		git_oid_fmt(&err[1], one);
+		git_oid_fmt(&err[47], two);
+
+		clar__fail(file, func, line, desc, err, 1);
+#ifdef GIT_EXPERIMENTAL_SHA256
+	} else if (one->type == GIT_OID_SHA256) {
+		char err[] = "\"................................................................\" != \"................................................................\"";
+
+		git_oid_fmt(&err[1], one);
+		git_oid_fmt(&err[71], one);
+
+		clar__fail(file, func, line, desc, err, 1);
+#endif
+	} else {
+		clar__fail(file, func, line, desc, "unknown oid types", 1);
+	}
+}
+
+#define cl_assert_equal_oid(one, two) \
+	clar__assert_equal_oid(__FILE__, __func__, __LINE__, \
+		"OID mismatch: " #one " != " #two, (one), (two))
+
+/*
+ * Some utility macros for building long strings
+ */
+#define REP4(STR)	 STR STR STR STR
+#define REP15(STR)	 REP4(STR) REP4(STR) REP4(STR) STR STR STR
+#define REP16(STR)	 REP4(REP4(STR))
+#define REP256(STR)  REP16(REP16(STR))
+#define REP1024(STR) REP4(REP256(STR))
+
+/* Write the contents of a buffer to disk */
+void cl_git_mkfile(const char *filename, const char *content);
+void cl_git_append2file(const char *filename, const char *new_content);
+void cl_git_rewritefile(const char *filename, const char *new_content);
+void cl_git_write2file(const char *path, const char *data,
+	size_t datalen, int flags, unsigned int mode);
+void cl_git_rmfile(const char *filename);
+
+bool cl_toggle_filemode(const char *filename);
+bool cl_is_chmod_supported(void);
+
+/* Environment wrappers */
+char *cl_getenv(const char *name);
+bool cl_is_env_set(const char *name);
+int cl_setenv(const char *name, const char *value);
+
+/* Reliable rename */
+int cl_rename(const char *source, const char *dest);
+
+/* Git sandbox setup helpers */
+
+git_repository *cl_git_sandbox_init(const char *sandbox);
+git_repository *cl_git_sandbox_init_new(const char *name);
+void cl_git_sandbox_cleanup(void);
+git_repository *cl_git_sandbox_reopen(void);
+
+/*
+ * build a sandbox-relative from path segments
+ * is_dir will add a trailing slash
+ * vararg must be a NULL-terminated char * list
+ */
+const char *cl_git_sandbox_path(int is_dir, ...);
+
+/* Local-repo url helpers */
+const char* cl_git_fixture_url(const char *fixturename);
+const char* cl_git_path_url(const char *path);
+
+/* Test repository cleaner */
+int cl_git_remove_placeholders(const char *directory_path, const char *filename);
+
+/* commit creation helpers */
+void cl_repo_commit_from_index(
+	git_oid *out,
+	git_repository *repo,
+	git_signature *sig,
+	git_time_t time,
+	const char *msg);
+
+/* config setting helpers */
+void cl_repo_set_bool(git_repository *repo, const char *cfg, int value);
+int cl_repo_get_bool(git_repository *repo, const char *cfg);
+
+void cl_repo_set_int(git_repository *repo, const char *cfg, int value);
+int cl_repo_get_int(git_repository *repo, const char *cfg);
+
+void cl_repo_set_string(git_repository *repo, const char *cfg, const char *value);
+
+/*
+ * set up a fake "home" directory -- automatically configures cleanup
+ * function to restore the home directory, although you can call it
+ * explicitly if you wish (with NULL).
+ */
+void cl_fake_homedir(git_str *);
+void cl_fake_homedir_cleanup(void *);
+
+/*
+ * set up a fake global configuration directory -- automatically
+ * configures cleanup function to restore the global config
+ * although you can call it explicitly if you wish (with NULL).
+ */
+void cl_fake_globalconfig(git_str *);
+void cl_fake_globalconfig_cleanup(void *);
+
+void cl_sandbox_set_homedir(const char *);
+void cl_sandbox_set_search_path_defaults(void);
+void cl_sandbox_disable_ownership_validation(void);
+
+#ifdef GIT_WIN32
+# define cl_msleep(x) Sleep(x)
+#else
+# define cl_msleep(x) usleep(1000 * (x))
+#endif
+
+#ifdef GIT_WIN32
+bool cl_sandbox_supports_8dot3(void);
+#endif
+
+#endif