Add tests for pathspec magic w/ tree.

Author: sinclairtarget

test-repo

@@ -29,6 +29,34 @@ def test_tree_subdir
     refute_empty(stdout_s)
   end
 
+  def test_tree_exclude_ext_pathspec
+    cmd = GitWho.new(GitWho.built_bin_path, TestRepo.path)
+    stdout_s = cmd.run 'tree', '--', 'exclude-ext', ':!*.py'
+    refute_empty(stdout_s)
+  end
+
+  def test_tree_exclude_ext_pathspec_longform
+    cmd = GitWho.new(GitWho.built_bin_path, TestRepo.path)
+    stdout_s = cmd.run 'tree', '--', 'exclude-ext', ':(exclude)*.py'
+    refute_empty(stdout_s)
+  end
+
+  def test_tree_exclude_ext_pathspec_no_concurrent
+    cmd = GitWho.new(GitWho.built_bin_path, TestRepo.path)
+    stdout_s = cmd.run 'tree', '--', 'exclude-ext', ':!*.py', n_procs: 1
+    refute_empty(stdout_s)
+  end
+
+  def test_exclude_ext_pathspec_trailing_slash
+    skip("git ls-files bug")
+
+    # This doesn't work because ls-files doesn't output anything. But it works
+    # if you put the exclude magic pathspec first. Bug with git ls-files?
+    cmd = GitWho.new(GitWho.built_bin_path, TestRepo.path)
+    stdout_s = cmd.run 'tree', '--', 'exclude-ext/', ':!*.py'
+    refute_empty(stdout_s)
+  end
+
   all_flag_combos = GitWho.generate_args_cartesian_product([
     SHOW_ALL_FLAGS,
     MODE_FLAGS,