+ Updated Hoe setup.

Sorted test and impl methods.
+ Switched to minitest.
[git-p4: depot-paths = "//src/graph/dev/": change = 5683]

.autotest

@@ -3,22 +3,6 @@
 require 'autotest/restart'
 require 'autotest/rcov'
 
-# Autotest.add_hook :initialize do |at|
-#   at.extra_files << "../some/external/dependency.rb"
-#
-#   at.libs << ":../some/external"
-#
-#   at.add_exception 'vendor'
-#
-#   at.add_mapping(/dependency.rb/) do |f, _|
-#     at.files_matching(/test_.*rb$/)
-#   end
-#
-#   %w(TestA TestB).each do |klass|
-#     at.extra_class_map[klass] = "test/test_misc.rb"
-#   end
-# end
-
-# Autotest.add_hook :run_command do |at|
-#   system "rake build"
-# end
+Autotest.add_hook :initialize do |at|
+  at.testlib = "minitest/autorun"
+end

Rakefile

@@ -4,9 +4,12 @@ require 'rubygems'
 require 'hoe'
 require './lib/graph.rb'
 
-Hoe.new('graph', Graph::VERSION) do |p|
-  p.rubyforge_name = 'seattlerb'
-  p.developer('Ryan Davis', 'ryand-ruby@zenspider.com')
+Hoe.plugin :seattlerb
+
+Hoe.spec 'graph' do
+  developer 'Ryan Davis', 'ryand-ruby@zenspider.com'
+
+  self.rubyforge_name = 'seattlerb'
 end
 
 # vim: syntax=Ruby

lib/graph.rb

@@ -8,29 +8,30 @@ class Graph < Hash
   attr_reader :order
   attr_reader :edge
 
-  def initialize
-    super { |h,k| h[k] = [] }
-    @prefix  = []
-    @order   = []
-    @attribs = Hash.new { |h,k| h[k] = [] }
-    @edge    = Hash.new { |h,k| h[k] = Hash.new { |h2,k2| h2[k2] = [] } }
-  end
-
   def []= key, val
     @order << key unless self.has_key? key
     super
   end
 
-  def delete key
-    @order.delete key
+  def clear
     super
+    @prefix.clear
+    @order.clear
+    @attribs.clear
+    @edge.clear
   end
 
-  def filter_size minimum
-    counts.each do |node, count|
-      next unless count < minimum
-      delete node
+  def counts
+    result = Hash.new 0
+    each_pair do |from, to|
+      result[from] += 1
     end
+    result
+  end
+
+  def delete key
+    @order.delete key
+    super
   end
 
   def each_pair
@@ -41,18 +42,25 @@ def each_pair
     end
   end
 
-  def invert
-    result = self.class.new
-    each_pair do |from, to|
-      result[to] << from
+  def filter_size minimum
+    counts.each do |node, count|
+      next unless count < minimum
+      delete node
     end
-    result
   end
 
-  def counts
-    result = Hash.new 0
+  def initialize
+    super { |h,k| h[k] = [] }
+    @prefix  = []
+    @order   = []
+    @attribs = Hash.new { |h,k| h[k] = [] }
+    @edge    = Hash.new { |h,k| h[k] = Hash.new { |h2,k2| h2[k2] = [] } }
+  end
+
+  def invert
+    result = self.class.new
     each_pair do |from, to|
-      result[from] += 1
+      result[to] << from
     end
     result
   end
@@ -61,6 +69,13 @@ def keys_by_count
     counts.sort_by { |key, count| -count }.map {|key, count| key }
   end
 
+  def save path, type="png"
+    File.open "#{path}.dot", "w" do |f|
+      f.write self.to_s
+    end
+    system "dot -T#{type} #{path}.dot > #{path}.#{type}" if type
+  end
+
   def to_s
     result = []
     result << "digraph absent"
@@ -83,11 +98,4 @@ def to_s
     result << "  }"
     result.join "\n"
   end
-
-  def save path, type="png"
-    File.open "#{path}.dot", "w" do |f|
-      f.write self.to_s
-    end
-    system "dot -T#{type} #{path}.dot > #{path}.#{type}" if type
-  end
 end

test/test_graph.rb

@@ -1,17 +1,13 @@
-require "test/unit"
+require "minitest/autorun"
 require "tmpdir"
 require "graph"
 
-class TestGraph < Test::Unit::TestCase
+class TestGraph < MiniTest::Unit::TestCase
   def setup
     @graph = Graph.new
     @graph["a"] << "b"
   end
 
-  def test_to_s_empty
-    assert_equal util_dot, Graph.new.to_s
-  end
-
   def test_delete
     assert_equal %w(b), @graph.delete("a")
     assert_equal [], @graph.order
@@ -57,19 +53,23 @@ def test_to_s
     assert_equal expected, @graph.to_s
   end
 
-  def test_to_s_prefix
-    @graph.prefix << "blah"
+  def test_to_s_attrib
+    @graph.attribs["a"] << "color = blue"
     @graph["a"] << "c"
 
-    expected = util_dot('blah', '"a" -> "b"', '"a" -> "c"')
+    expected = util_dot('"a" [ color = blue ]', '"a" -> "b"', '"a" -> "c"')
     assert_equal expected, @graph.to_s
   end
 
-  def test_to_s_attrib
-    @graph.attribs["a"] << "color = blue"
+  def test_to_s_empty
+    assert_equal util_dot, Graph.new.to_s
+  end
+
+  def test_to_s_prefix
+    @graph.prefix << "blah"
     @graph["a"] << "c"
 
-    expected = util_dot('"a" [ color = blue ]', '"a" -> "b"', '"a" -> "c"')
+    expected = util_dot('blah', '"a" -> "b"', '"a" -> "c"')
     assert_equal expected, @graph.to_s
   end