thodg/libgit2/tests/refs/races.c

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• Hash : 659cf202
  Author :
  Date : 2015-01-07T12:23:05
  

  Remove the signature from ref-modifying functions The signature for the reflog is not something which changes dynamically. Almost all uses will be NULL, since we want for the repository's default identity to be used, making it noise. In order to allow for changing the identity, we instead provide git_repository_set_ident() and git_repository_ident() which allow a user to override the choice of signature.

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• tests/refs/races.c

• #include "clar_libgit2.h"
  
  #include "repository.h"
  #include "git2/reflog.h"
  #include "reflog.h"
  #include "ref_helpers.h"
  
  static const char *commit_id = "099fabac3a9ea935598528c27f866e34089c2eff";
  static const char *refname = "refs/heads/master";
  static const char *other_refname = "refs/heads/foo";
  static const char *other_commit_id = "a65fedf39aefe402d3bb6e24df4d4f5fe4547750";
  
  static git_repository *g_repo;
  
  void test_refs_races__initialize(void)
  {
     g_repo = cl_git_sandbox_init("testrepo");
  }
  
  void test_refs_races__cleanup(void)
  {
     cl_git_sandbox_cleanup();
  }
  
  void test_refs_races__create_matching(void)
  {
  	git_reference *ref, *ref2, *ref3;
  	git_oid id, other_id;
  
  	git_oid_fromstr(&id, commit_id);
  	git_oid_fromstr(&other_id, other_commit_id);
  
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_create_matching(&ref, g_repo, refname, &other_id, 1, &other_id, NULL));
  
  	cl_git_pass(git_reference_lookup(&ref, g_repo, refname));
  	cl_git_pass(git_reference_create_matching(&ref2, g_repo, refname, &other_id, 1, &id, NULL));
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_set_target(&ref3, ref, &other_id, NULL));
  
  	git_reference_free(ref);
  	git_reference_free(ref2);
  	git_reference_free(ref3);
  }
  
  void test_refs_races__symbolic_create_matching(void)
  {
  	git_reference *ref, *ref2, *ref3;
  	git_oid id, other_id;
  
  	git_oid_fromstr(&id, commit_id);
  	git_oid_fromstr(&other_id, other_commit_id);
  
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_symbolic_create_matching(&ref, g_repo, "HEAD", other_refname, 1, other_refname, NULL));
  
  	cl_git_pass(git_reference_lookup(&ref, g_repo, "HEAD"));
  	cl_git_pass(git_reference_symbolic_create_matching(&ref2, g_repo, "HEAD", other_refname, 1, NULL, refname));
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_symbolic_set_target(&ref3, ref, other_refname, NULL));
  
  	git_reference_free(ref);
  	git_reference_free(ref2);
  	git_reference_free(ref3);
  }
  
  void test_refs_races__delete(void)
  {
  	git_reference *ref, *ref2;
  	git_oid id, other_id;
  
  	git_oid_fromstr(&id, commit_id);
  	git_oid_fromstr(&other_id, other_commit_id);
  
  	/* We can delete a value that matches */
  	cl_git_pass(git_reference_lookup(&ref, g_repo, refname));
  	cl_git_pass(git_reference_delete(ref));
  	git_reference_free(ref);
  
  	/* We cannot delete a symbolic value that doesn't match */
  	cl_git_pass(git_reference_lookup(&ref, g_repo, "HEAD"));
  	cl_git_pass(git_reference_symbolic_create_matching(&ref2, g_repo, "HEAD", other_refname, 1, NULL, refname));
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_delete(ref));
  
  	git_reference_free(ref);
  	git_reference_free(ref2);
  
  	cl_git_pass(git_reference_create(&ref, g_repo, refname, &id, 1, NULL));
  	git_reference_free(ref);
  
  	/* We cannot delete an oid value that doesn't match */
  	cl_git_pass(git_reference_lookup(&ref, g_repo, refname));
  	cl_git_pass(git_reference_create_matching(&ref2, g_repo, refname, &other_id, 1, &id, NULL));
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_delete(ref));
  
  	git_reference_free(ref);
  	git_reference_free(ref2);
  }
  
  void test_refs_races__switch_oid_to_symbolic(void)
  {
  	git_reference *ref, *ref2, *ref3;
  	git_oid id, other_id;
  
  	git_oid_fromstr(&id, commit_id);
  	git_oid_fromstr(&other_id, other_commit_id);
  
  	/* Removing a direct ref when it's currently symbolic should fail */
  	cl_git_pass(git_reference_lookup(&ref, g_repo, refname));
  	cl_git_pass(git_reference_symbolic_create(&ref2, g_repo, refname, other_refname, 1, NULL));
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_delete(ref));
  
  	git_reference_free(ref);
  	git_reference_free(ref2);
  
  	cl_git_pass(git_reference_create(&ref, g_repo, refname, &id, 1, NULL));
  	git_reference_free(ref);
  
  	/* Updating a direct ref when it's currently symbolic should fail */
  	cl_git_pass(git_reference_lookup(&ref, g_repo, refname));
  	cl_git_pass(git_reference_symbolic_create(&ref2, g_repo, refname, other_refname, 1, NULL));
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_set_target(&ref3, ref, &other_id, NULL));
  
  	git_reference_free(ref);
  	git_reference_free(ref2);
  	git_reference_free(ref3);
  }
  
  void test_refs_races__switch_symbolic_to_oid(void)
  {
  	git_reference *ref, *ref2, *ref3;
  	git_oid id, other_id;
  
  	git_oid_fromstr(&id, commit_id);
  	git_oid_fromstr(&other_id, other_commit_id);
  
  	/* Removing a symbolic ref when it's currently direct should fail */
  	cl_git_pass(git_reference_lookup(&ref, g_repo, "HEAD"));
  	cl_git_pass(git_reference_create(&ref2, g_repo, "HEAD", &id, 1, NULL));
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_delete(ref));
  
  	git_reference_free(ref);
  	git_reference_free(ref2);
  
  	cl_git_pass(git_reference_symbolic_create(&ref, g_repo, "HEAD", refname, 1, NULL));
  	git_reference_free(ref);
  
  	/* Updating a symbolic ref when it's currently direct should fail */
  	cl_git_pass(git_reference_lookup(&ref, g_repo, "HEAD"));
  	cl_git_pass(git_reference_create(&ref2, g_repo, "HEAD", &id, 1, NULL));
  	cl_git_fail_with(GIT_EMODIFIED, git_reference_symbolic_set_target(&ref3, ref, other_refname, NULL));
  
  	git_reference_free(ref);
  	git_reference_free(ref2);
  	git_reference_free(ref3);
  }
  

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