thodg/libgit2/tests/perf/merge.c

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• Hash : 543ec149
  Author :
  Date : 2017-06-07T11:06:01
  

  tests: perf: build but exclude performance tests by default
  
  Our performance tests (or to be more concrete, our single performance
  test) are not built by default, as they are always #ifdef'd out. While
  it is true that we don't want to run performance tests by default, not
  compiling them at all may cause code rot and is thus an unfavorable
  approach to handle this.
  
  We can easily improve this situation: this commit removes the #ifdef,
  causing the code to always be compiled. Furthermore, we add `-xperf` to
  the default command line parameters of `generate.py`, thus causing the
  tests to be excluded by default.
  
  Due to this approach, we are now able to execute the performance tests
  by passing `-sperf` to `libgit2_clar`. Unfortunately, we cannot execute
  the performance tests on Travis or AppVeyor as they rely on history
  being available for the libgit2 repository. As both do a shallow clone
  only, though, this is not given.
  

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• tests/perf/merge.c

• #include "clar_libgit2.h"
  #include "helper__perf__do_merge.h"
  
  /* This test requires a large repo with many files.
   * It doesn't care about the contents, just the size.
   * 
   * For now, we use the LibGit2 repo containing the
   * source tree because it is already here.
   *
   * `find . | wc -l` reports 5128.
   * 
   */
  #define SRC_REPO (cl_fixture("../.."))
  
  /* We need 2 arbitrary commits within that repo
   * that have a large number of changed files.
   * Again, we don't care about the actual contents,
   * just the size.
   *
   * For now, we use these public branches:
   * maint/v0.21 d853fb9f24e0fe63b3dce9fbc04fd9cfe17a030b Always checkout with case sensitive iterator
   * maint/v0.22 1ce9ea3ba9b4fa666602d52a5281d41a482cc58b checkout tests: cleanup realpath impl on Win32
   *
   */
  #define ID_BRANCH_A "d853fb9f24e0fe63b3dce9fbc04fd9cfe17a030b"
  #define ID_BRANCH_B "1ce9ea3ba9b4fa666602d52a5281d41a482cc58b"
  
  void test_perf_merge__m1(void)
  {
  	perf__do_merge(SRC_REPO, "m1", ID_BRANCH_A, ID_BRANCH_B);
  }
  

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