1 files changed, 369 insertions, 0 deletions
diff --git a/test/rake/test_tasks.rb b/test/rake/test_tasks.rb
new file mode 100644
index 0000000000..c4948ea389
--- /dev/null
+++ b/test/rake/test_tasks.rb
@@ -0,0 +1,369 @@
+require 'test/unit'
+require 'fileutils'
+require 'rake'
+require_relative 'filecreation'
+require_relative 'capture_stdout'
+
+######################################################################
+class TestTask < Test::Unit::TestCase
+  include CaptureStdout
+  include Rake
+
+  def setup
+    Task.clear
+  end
+
+  def test_create
+    arg = nil
+    t = task(:name) { |task| arg = task; 1234 }
+    assert_equal "name", t.name
+    assert_equal [], t.prerequisites
+    assert t.needed?
+    t.execute(0)
+    assert_equal t, arg
+    assert_nil t.source
+    assert_equal [], t.sources
+  end
+
+  def test_inspect
+    t = task(:foo, :needs => [:bar, :baz])
+    assert_equal "<Rake::Task foo => [bar, baz]>", t.inspect
+  end
+
+  def test_invoke
+    runlist = []
+    t1 = task(:t1 => [:t2, :t3]) { |t| runlist << t.name; 3321 }
+    t2 = task(:t2) { |t| runlist << t.name }
+    t3 = task(:t3) { |t| runlist << t.name }
+    assert_equal ["t2", "t3"], t1.prerequisites
+    t1.invoke
+    assert_equal ["t2", "t3", "t1"], runlist
+  end
+
+  def test_invoke_with_circular_dependencies
+    runlist = []
+    t1 = task(:t1 => [:t2]) { |t| runlist << t.name; 3321 }
+    t2 = task(:t2 => [:t1]) { |t| runlist << t.name }
+    assert_equal ["t2"], t1.prerequisites
+    assert_equal ["t1"], t2.prerequisites
+    ex = assert_raise RuntimeError do
+      t1.invoke
+    end
+    assert_match(/circular dependency/i, ex.message)
+    assert_match(/t1 => t2 => t1/, ex.message)
+  end
+
+  def test_dry_run_prevents_actions
+    Rake.application.options.dryrun = true
+    runlist = []
+    t1 = task(:t1) { |t| runlist << t.name; 3321 }
+    out = capture_stdout { t1.invoke }
+    assert_match(/execute .*t1/i, out)
+    assert_match(/dry run/i, out)
+    assert_no_match(/invoke/i, out)
+    assert_equal [], runlist
+  ensure
+    Rake.application.options.dryrun = false
+  end
+
+  def test_tasks_can_be_traced
+    Rake.application.options.trace = true
+    t1 = task(:t1)
+    out = capture_stdout {
+      t1.invoke
+    }
+    assert_match(/invoke t1/i, out)
+    assert_match(/execute t1/i, out)
+  ensure
+    Rake.application.options.trace = false
+  end
+
+  def test_no_double_invoke
+    runlist = []
+    t1 = task(:t1 => [:t2, :t3]) { |t| runlist << t.name; 3321 }
+    t2 = task(:t2 => [:t3]) { |t| runlist << t.name }
+    t3 = task(:t3) { |t| runlist << t.name }
+    t1.invoke
+    assert_equal ["t3", "t2", "t1"], runlist
+  end
+
+  def test_can_double_invoke_with_reenable
+    runlist = []
+    t1 = task(:t1) { |t| runlist << t.name }
+    t1.invoke
+    t1.reenable
+    t1.invoke
+    assert_equal ["t1", "t1"], runlist
+  end
+
+  def test_clear
+    t = task("t" => "a") { }
+    t.clear
+    assert t.prerequisites.empty?, "prerequisites should be empty"
+    assert t.actions.empty?, "actions should be empty"
+  end
+
+  def test_clear_prerequisites
+    t = task("t" => ["a", "b"])
+    assert_equal ['a', 'b'], t.prerequisites
+    t.clear_prerequisites
+    assert_equal [], t.prerequisites
+  end
+
+  def test_clear_actions
+    t = task("t") { }
+    t.clear_actions
+    assert t.actions.empty?, "actions should be empty"
+  end
+
+  def test_find
+    task :tfind
+    assert_equal "tfind", Task[:tfind].name
+    ex = assert_raise(RuntimeError) { Task[:leaves] }
+    assert_equal "Don't know how to build task 'leaves'", ex.message
+  end
+
+  def test_defined
+    assert ! Task.task_defined?(:a)
+    task :a
+    assert Task.task_defined?(:a)
+  end
+
+  def test_multi_invocations
+    runs = []
+    p = proc do |t| runs << t.name end
+    task({:t1=>[:t2,:t3]}, &p)
+    task({:t2=>[:t3]}, &p)
+    task(:t3, &p)
+    Task[:t1].invoke
+    assert_equal ["t1", "t2", "t3"], runs.sort
+  end
+
+  def test_task_list
+    task :t2
+    task :t1 => [:t2]
+    assert_equal ["t1", "t2"], Task.tasks.collect {|t| t.name}
+  end
+
+  def test_task_gives_name_on_to_s
+    task :abc
+    assert_equal "abc", Task[:abc].to_s
+  end
+
+  def test_symbols_can_be_prerequisites
+    task :a => :b
+    assert_equal ["b"], Task[:a].prerequisites
+  end
+
+  def test_strings_can_be_prerequisites
+    task :a => "b"
+    assert_equal ["b"], Task[:a].prerequisites
+  end
+
+  def test_arrays_can_be_prerequisites
+    task :a => ["b", "c"]
+    assert_equal ["b", "c"], Task[:a].prerequisites
+  end
+
+  def test_filelists_can_be_prerequisites
+    task :a => FileList.new.include("b", "c")
+    assert_equal ["b", "c"], Task[:a].prerequisites
+  end
+
+  def test_investigation_output
+    t1 = task(:t1 => [:t2, :t3]) { |t| runlist << t.name; 3321 }
+    task(:t2)
+    task(:t3)
+    out = t1.investigation
+    assert_match(/class:\s*Rake::Task/, out)
+    assert_match(/needed:\s*true/, out)
+    assert_match(/pre-requisites:\s*--t[23]/, out)
+  end
+
+
+  def test_extended_comments
+    desc %{
+      This is a comment.
+
+      And this is the extended comment.
+      name -- Name of task to execute.
+      rev  -- Software revision to use.
+    }
+    t = task(:t, :name, :rev)
+    assert_equal "[name,rev]", t.arg_description
+    assert_equal "This is a comment.", t.comment
+    assert_match(/^\s*name -- Name/, t.full_comment)
+    assert_match(/^\s*rev  -- Software/, t.full_comment)
+    assert_match(/\A\s*This is a comment\.$/, t.full_comment)
+  end
+
+  def test_multiple_comments
+    desc "line one"
+    t = task(:t)
+    desc "line two"
+    task(:t)
+    assert_equal "line one / line two", t.comment
+  end
+
+  def test_settable_comments
+    t = task(:t)
+    t.comment = "HI"
+    assert_equal "HI", t.comment
+  end
+end
+
+######################################################################
+class TestTaskWithArguments < Test::Unit::TestCase
+  include CaptureStdout
+  include Rake
+
+  def setup
+    Task.clear
+  end
+
+  def test_no_args_given
+    t = task :t
+    assert_equal [], t.arg_names
+  end
+
+  def test_args_given
+    t = task :t, :a, :b
+    assert_equal [:a, :b], t.arg_names
+  end
+
+  def test_name_and_needs
+    t = task(:t => [:pre])
+    assert_equal "t", t.name
+    assert_equal [], t.arg_names
+    assert_equal ["pre"], t.prerequisites
+  end
+
+  def test_name_and_explicit_needs
+    t = task(:t, :needs => [:pre])
+    assert_equal "t", t.name
+    assert_equal [], t.arg_names
+    assert_equal ["pre"], t.prerequisites
+  end
+
+  def test_name_args_and_explicit_needs
+    t = task(:t, :x, :y, :needs => [:pre])
+    assert_equal "t", t.name
+    assert_equal [:x, :y], t.arg_names
+    assert_equal ["pre"], t.prerequisites
+  end
+
+  def test_illegal_keys_in_task_name_hash
+    assert_raise RuntimeError do
+      t = task(:t, :x, :y => 1, :needs => [:pre])
+    end
+  end
+
+  def test_arg_list_is_empty_if_no_args_given
+    t = task(:t) { |tt, args| assert_equal({}, args.to_hash) }
+    t.invoke(1, 2, 3)
+  end
+
+  def test_tasks_can_access_arguments_as_hash
+    t = task :t, :a, :b, :c do |tt, args|
+      assert_equal({:a => 1, :b => 2, :c => 3}, args.to_hash)
+      assert_equal 1, args[:a]
+      assert_equal 2, args[:b]
+      assert_equal 3, args[:c]
+      assert_equal 1, args.a
+      assert_equal 2, args.b
+      assert_equal 3, args.c
+    end
+    t.invoke(1, 2, 3)
+  end
+
+  def test_actions_of_various_arity_are_ok_with_args
+    notes = []
+    t = task(:t, :x) do
+      notes << :a
+    end
+    t.enhance do | |
+      notes << :b
+    end
+    t.enhance do |task|
+      notes << :c
+      assert_kind_of Task, task
+    end
+    t.enhance do |t2, args|
+      notes << :d
+      assert_equal t, t2
+      assert_equal({:x => 1}, args.to_hash)
+    end
+    assert_nothing_raised do t.invoke(1) end
+    assert_equal [:a, :b, :c, :d], notes
+  end
+
+  def test_arguments_are_passed_to_block
+    t = task(:t, :a, :b) { |tt, args|
+      assert_equal( { :a => 1, :b => 2 }, args.to_hash )
+    }
+    t.invoke(1, 2)
+  end
+
+  def test_extra_parameters_are_ignored
+    t = task(:t, :a) { |tt, args|
+      assert_equal 1, args.a
+      assert_nil args.b
+    }
+    t.invoke(1, 2)
+  end
+
+  def test_arguments_are_passed_to_all_blocks
+    counter = 0
+    t = task :t, :a
+    task :t do |tt, args|
+      assert_equal 1, args.a
+      counter += 1
+    end
+    task :t do |tt, args|
+      assert_equal 1, args.a
+      counter += 1
+    end
+    t.invoke(1)
+    assert_equal 2, counter
+  end
+
+  def test_block_with_no_parameters_is_ok
+    t = task(:t) { }
+    t.invoke(1, 2)
+  end
+
+  def test_name_with_args
+    desc "T"
+    t = task(:tt, :a, :b)
+    assert_equal "tt", t.name
+    assert_equal "T", t.comment
+    assert_equal "[a,b]", t.arg_description
+    assert_equal "tt[a,b]", t.name_with_args
+    assert_equal [:a, :b],t.arg_names
+  end
+
+  def test_named_args_are_passed_to_prereqs
+    value = nil
+    pre = task(:pre, :rev) { |t, args| value = args.rev }
+    t = task(:t, :name, :rev, :needs => [:pre])
+    t.invoke("bill", "1.2")
+    assert_equal "1.2", value
+  end
+
+  def test_args_not_passed_if_no_prereq_names
+    pre = task(:pre) { |t, args|
+      assert_equal({}, args.to_hash)
+      assert_equal "bill", args.name
+    }
+    t = task(:t, :name, :rev, :needs => [:pre])
+    t.invoke("bill", "1.2")
+  end
+
+  def test_args_not_passed_if_no_arg_names
+    pre = task(:pre, :rev) { |t, args|
+      assert_equal({}, args.to_hash)
+    }
+    t = task(:t, :needs => [:pre])
+    t.invoke("bill", "1.2")
+  end
+end