1 files changed, 87 insertions, 0 deletions
diff --git a/test/rake/test_task_arguments.rb b/test/rake/test_task_arguments.rb
new file mode 100644
index 0000000000..daecbcf730
--- /dev/null
+++ b/test/rake/test_task_arguments.rb
@@ -0,0 +1,87 @@
+require 'test/unit'
+require 'rake'
+
+######################################################################
+class TestTaskArguments < Test::Unit::TestCase
+  def teardown
+    ENV.delete('rev')
+    ENV.delete('VER')
+  end
+
+  def test_empty_arg_list_is_empty
+    ta = Rake::TaskArguments.new([], [])
+    assert_equal({}, ta.to_hash)
+  end
+
+  def test_multiple_values_in_args
+    ta = Rake::TaskArguments.new([:a, :b, :c], [:one, :two, :three])
+    assert_equal({:a => :one, :b => :two, :c => :three}, ta.to_hash)
+  end
+
+  def test_to_s
+    ta = Rake::TaskArguments.new([:a, :b, :c], [1, 2, 3])
+    assert_equal ta.to_hash.inspect, ta.to_s
+    assert_equal ta.to_hash.inspect, ta.inspect
+  end
+
+  def test_enumerable_behavior
+    ta = Rake::TaskArguments.new([:a, :b, :c], [1, 2 ,3])
+    assert_equal [10, 20, 30], ta.collect { |k,v| v * 10 }.sort
+  end
+
+  def test_named_args
+    ta = Rake::TaskArguments.new(["aa", "bb"], [1, 2])
+    assert_equal 1, ta.aa
+    assert_equal 1, ta[:aa]
+    assert_equal 1, ta["aa"]
+    assert_equal 2, ta.bb
+    assert_nil ta.cc
+  end
+
+  def test_args_knows_its_names
+    ta = Rake::TaskArguments.new(["aa", "bb"], [1, 2])
+    assert_equal ["aa", "bb"], ta.names
+  end
+
+  def test_extra_names_are_nil
+    ta = Rake::TaskArguments.new(["aa", "bb", "cc"], [1, 2])
+    assert_nil ta.cc
+  end
+
+  def test_args_can_reference_env_values
+    ta = Rake::TaskArguments.new(["aa"], [1])
+    ENV['rev'] = "1.2"
+    ENV['VER'] = "2.3"
+    assert_equal "1.2", ta.rev
+    assert_equal "2.3", ta.ver
+  end
+
+  def test_creating_new_argument_scopes
+    parent = Rake::TaskArguments.new(['p'], [1])
+    child = parent.new_scope(['c', 'p'])
+    assert_equal({:p=>1}, child.to_hash)
+    assert_equal 1, child.p
+    assert_equal 1, child["p"]
+    assert_equal 1, child[:p]
+    assert_nil child.c
+  end
+
+  def test_child_hides_parent_arg_names
+    parent = Rake::TaskArguments.new(['aa'], [1])
+    child = Rake::TaskArguments.new(['aa'], [2], parent)
+    assert_equal 2, child.aa
+  end
+  
+  def test_default_arguments_values_can_be_merged
+    ta = Rake::TaskArguments.new(["aa", "bb"], [nil, "original_val"])
+    ta.with_defaults({ :aa => 'default_val' })
+    assert_equal 'default_val', ta[:aa]
+    assert_equal 'original_val', ta[:bb]
+  end
+
+  def test_default_arguements_that_dont_match_names_are_ignored
+    ta = Rake::TaskArguments.new(["aa", "bb"], [nil, "original_val"])
+    ta.with_defaults({ "cc" => "default_val" })
+    assert_nil ta[:cc]
+  end
+end