Imported minitest 2.0.0 r5952. Fixed test/unit.rb to work with changes

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29990 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

4 files changed, 206 insertions, 85 deletions

diff --git a/test/minitest/test_minitest_benchmark.rb b/test/minitest/test_minitest_benchmark.rb
new file mode 100644
index 0000000000..089d0b3ce0
--- /dev/null
+++ b/test/minitest/test_minitest_benchmark.rb
@@ -0,0 +1,104 @@
+############################################################
+# This file is imported from a different project.
+# DO NOT make modifications in this repo.
+# File a patch instead and assign it to Ryan Davis
+############################################################
+
+require 'minitest/autorun'
+require 'minitest/benchmark'
+
+##
+# Used to verify data:
+# http://www.wolframalpha.com/examples/RegressionAnalysis.html
+
+class TestMiniTestBenchmark < MiniTest::Unit::TestCase
+  def test_cls_bench_exp
+    assert_equal [2, 4, 8, 16, 32], self.class.bench_exp(2, 32, 2)
+  end
+
+  def test_cls_bench_linear
+    assert_equal [2, 4, 6, 8, 10], self.class.bench_linear(2, 10, 2)
+  end
+
+  def test_cls_benchmark_methods
+    assert_equal [], self.class.benchmark_methods
+
+    c = Class.new(MiniTest::Unit::TestCase) do
+      def bench_blah
+      end
+    end
+
+    assert_equal ["bench_blah"], c.benchmark_methods
+  end
+
+  def test_cls_bench_range
+    assert_equal [1, 10, 100, 1_000, 10_000], self.class.bench_range
+  end
+
+  def test_fit_exponential_clean
+    x = [1.0, 2.0, 3.0, 4.0, 5.0]
+    y = x.map { |n| 1.1 * Math.exp(2.1 * n) }
+
+    assert_fit :exponential, x, y, 1.0, 1.1, 2.1
+  end
+
+  def test_fit_exponential_noisy
+    x = [1.0, 1.9, 2.6, 3.4, 5.0]
+    y = [12, 10, 8.2, 6.9, 5.9]
+
+    # verified with Numbers and R
+    assert_fit :exponential, x, y, 0.95, 13.81148, -0.1820
+  end
+
+  def test_fit_linear_clean
+    # y = m * x + b where m = 2.2, b = 3.1
+    x = (1..5).to_a
+    y = x.map { |n| 2.2 * n + 3.1 }
+
+    assert_fit :linear, x, y, 1.0, 3.1, 2.2
+  end
+
+  def test_fit_linear_noisy
+    x = [ 60,  61,  62,  63,  65]
+    y = [3.1, 3.6, 3.8, 4.0, 4.1]
+
+    # verified in numbers and R
+    assert_fit :linear, x, y, 0.8315, -7.9635, 0.1878
+  end
+
+  def test_fit_power_clean
+    # y = A x ** B, where B = b and A = e ** a
+    # if, A = 1, B = 2, then
+
+    x = [1.0, 2.0, 3.0, 4.0, 5.0]
+    y = [1.0, 4.0, 9.0, 16.0, 25.0]
+
+    assert_fit :power, x, y, 1.0, 1.0, 2.0
+  end
+
+  def test_fit_power_noisy
+    # from www.engr.uidaho.edu/thompson/courses/ME330/lecture/least_squares.html
+    x = [10, 12, 15, 17, 20, 22, 25, 27, 30, 32, 35]
+    y = [95, 105, 125, 141, 173, 200, 253, 298, 385, 459, 602]
+
+    # verified in numbers
+    assert_fit :power, x, y, 0.90, 2.6217, 1.4556
+
+    # income to % of households below income amount
+    # http://library.wolfram.com/infocenter/Conferences/6461/PowerLaws.nb
+    x = [15000, 25000, 35000, 50000, 75000, 100000]
+    y = [0.154, 0.283, 0.402, 0.55, 0.733, 0.843]
+
+    # verified in numbers
+    assert_fit :power, x, y, 0.96, 3.119e-5, 0.8959
+  end
+
+  def assert_fit msg, x, y, fit, exp_a, exp_b
+    a, b, rr = send "fit_#{msg}", x, y
+
+    assert_operator rr, :>=, fit
+    assert_in_delta exp_a, a
+    assert_in_delta exp_b, b
+  end
+end
+
diff --git a/test/minitest/test_mini_mock.rb b/test/minitest/test_minitest_mock.rb
index 0f16ae930e..bb4279c7d1 100644
--- a/test/minitest/test_mini_mock.rb
+++ b/test/minitest/test_minitest_mock.rb
@@ -9,39 +9,39 @@ require 'minitest/unit'
 
 MiniTest::Unit.autorun
 
-class TestMiniMock < MiniTest::Unit::TestCase
+class TestMiniTestMock < MiniTest::Unit::TestCase
   def setup
     @mock = MiniTest::Mock.new.expect(:foo, nil)
     @mock.expect(:meaning_of_life, 42)
   end
 
-  def test_should_create_stub_method
+  def test_create_stub_method
     assert_nil @mock.foo
   end
 
-  def test_should_allow_return_value_specification
+  def test_allow_return_value_specification
     assert_equal 42, @mock.meaning_of_life
   end
 
-  def test_should_blow_up_if_not_called
+  def test_blow_up_if_not_called
     @mock.foo
 
     util_verify_bad
   end
 
-  def test_should_not_blow_up_if_everything_called
+  def test_not_blow_up_if_everything_called
     @mock.foo
     @mock.meaning_of_life
 
     assert @mock.verify
   end
 
-  def test_should_allow_expectations_to_be_added_after_creation
+  def test_allow_expectations_to_be_added_after_creation
     @mock.expect(:bar, true)
     assert @mock.bar
   end
 
-  def test_should_not_verify_if_new_expected_method_is_not_called
+  def test_not_verify_if_new_expected_method_is_not_called
     @mock.foo
     @mock.meaning_of_life
     @mock.expect(:bar, true)
@@ -49,13 +49,13 @@ class TestMiniMock < MiniTest::Unit::TestCase
     util_verify_bad
   end
 
-  def test_should_not_verify_if_unexpected_method_is_called
+  def test_not_verify_if_unexpected_method_is_called
     assert_raises NoMethodError do
       @mock.unexpected
     end
   end
 
-  def test_should_blow_up_on_wrong_number_of_arguments
+  def test_blow_up_on_wrong_number_of_arguments
     @mock.foo
     @mock.meaning_of_life
     @mock.expect(:sum, 3, [1, 2])
@@ -65,7 +65,7 @@ class TestMiniMock < MiniTest::Unit::TestCase
     end
   end
 
-  def test_should_blow_up_on_wrong_arguments
+  def test_blow_up_on_wrong_arguments
     @mock.foo
     @mock.meaning_of_life
     @mock.expect(:sum, 3, [1, 2])
@@ -75,6 +75,35 @@ class TestMiniMock < MiniTest::Unit::TestCase
     util_verify_bad
   end
 
+  def test_respond_appropriately
+    assert @mock.respond_to?(:foo)
+    assert !@mock.respond_to?(:bar)
+  end
+
+  def test_no_method_error_on_unexpected_methods
+    assert_raises NoMethodError do
+      @mock.bar
+    end
+  end
+
+  def test_assign_per_mock_return_values
+    a = MiniTest::Mock.new
+    b = MiniTest::Mock.new
+    
+    a.expect(:foo, :a)
+    b.expect(:foo, :b)
+    
+    assert_equal :a, a.foo
+    assert_equal :b, b.foo
+  end
+
+  def test_do_not_create_stub_method_on_new_mocks
+    a = MiniTest::Mock.new
+    a.expect(:foo, :a)
+
+    assert !MiniTest::Mock.new.respond_to?(:foo)
+  end
+
   def util_verify_bad
     assert_raises MockExpectationError do
       @mock.verify
diff --git a/test/minitest/test_mini_spec.rb b/test/minitest/test_minitest_spec.rb
index f2e30c66d0..733ce0f5c7 100644
--- a/test/minitest/test_mini_spec.rb
+++ b/test/minitest/test_minitest_spec.rb
@@ -203,7 +203,7 @@ end
 
 class TestMeta < MiniTest::Unit::TestCase
   def test_structure
-    x = y = nil
+    x = y = z = nil
     x = describe "top-level thingy" do
       before {}
       after  {}
@@ -213,13 +213,23 @@ class TestMeta < MiniTest::Unit::TestCase
       y = describe "inner thingy" do
         before {}
         it "inner-it" do end
+
+        z = describe "very inner thingy" do
+          before {}
+          it "inner-it" do end
+        end
       end
     end
 
+    assert_equal "top-level thingy", x.to_s
+    assert_equal "top-level thingy::inner thingy", y.to_s
+    assert_equal "top-level thingy::inner thingy::very inner thingy", z.to_s
+
     top_methods = %w(setup teardown test_0001_top_level_it)
     inner_methods = %w(setup test_0001_inner_it)
 
-    assert_equal top_methods, x.instance_methods(false).sort.map   {|o| o.to_s }
+    assert_equal top_methods,   x.instance_methods(false).sort.map {|o| o.to_s }
     assert_equal inner_methods, y.instance_methods(false).sort.map {|o| o.to_s }
+    assert_equal inner_methods, z.instance_methods(false).sort.map {|o| o.to_s }
   end
 end
diff --git a/test/minitest/test_mini_test.rb b/test/minitest/test_minitest_unit.rb
index 176f6ec26f..a8187f2275 100644
--- a/test/minitest/test_mini_test.rb
+++ b/test/minitest/test_minitest_unit.rb
@@ -10,35 +10,31 @@ require 'minitest/unit'
 
 MiniTest::Unit.autorun
 
-module M; end
-class E < StandardError; include M; end
+module MyModule; end
+class AnError < StandardError; include MyModule; end
 
-class TestMiniTest < MiniTest::Unit::TestCase
+class TestMiniTestUnit < MiniTest::Unit::TestCase
   pwd = Pathname.new(File.expand_path(Dir.pwd))
   basedir = Pathname.new(File.expand_path(MiniTest::MINI_DIR)) + 'mini'
   basedir = basedir.relative_path_from(pwd).to_s
   MINITEST_BASE_DIR = basedir[/\A\./] ? basedir : "./#{basedir}"
-  BT_MIDDLE = ["#{MINITEST_BASE_DIR}/test.rb:165:in `run_test_suites'",
-               "#{MINITEST_BASE_DIR}/test.rb:161:in `each'",
-               "#{MINITEST_BASE_DIR}/test.rb:161:in `run_test_suites'",
+  BT_MIDDLE = ["#{MINITEST_BASE_DIR}/test.rb:161:in `each'",
                "#{MINITEST_BASE_DIR}/test.rb:158:in `each'",
-               "#{MINITEST_BASE_DIR}/test.rb:158:in `run_test_suites'",
                "#{MINITEST_BASE_DIR}/test.rb:139:in `run'",
                "#{MINITEST_BASE_DIR}/test.rb:106:in `run'"]
 
   def assert_report expected = nil
-    expected ||= "Test run options: --seed 42
+    expected ||= "Run options: --seed 42
+
+# Running tests:
 
-Loaded suite blah
-Started
 .
-Finished in 0.00
 
-1 tests, 1 assertions, 0 failures, 0 errors, 0 skips
+Finished tests in 0.00
 
-Test run options: --seed 42
+1 tests, 1 assertions, 0 failures, 0 errors, 0 skips
 "
-    output = @output.string.sub(/Finished in .*/, "Finished in 0.00")
+    output = @output.string.sub(/Finished tests in .*/, "Finished tests in 0.00")
     output.sub!(/Loaded suite .*/, 'Loaded suite blah')
     output.sub!(/^(\s+)(?:#{Regexp.union(__FILE__, File.expand_path(__FILE__))}):\d+:/o, '\1FILE:LINE:')
     output.sub!(/\[(?:#{Regexp.union(__FILE__, File.expand_path(__FILE__))}):\d+\]/o, '[FILE:LINE]')
@@ -51,7 +47,6 @@ Test run options: --seed 42
     @tu = MiniTest::Unit.new
     @output = StringIO.new("")
     MiniTest::Unit.output = @output
-    assert_equal [0, 0], @tu.run_test_suites
   end
 
   def teardown
@@ -151,18 +146,6 @@ Test run options: --seed 42
     assert_match(/^Exception.*Oh no again!/m, @tu.report.first)
   end
 
-  def test_class_run_test_suites
-    tc = Class.new(MiniTest::Unit::TestCase) do
-      def test_something
-        assert true
-      end
-    end
-
-    Object.const_set(:ATestCase, tc)
-
-    assert_equal [1, 1], @tu.run_test_suites
-  end
-
   def test_filter_backtrace
     # this is a semi-lame mix of relative paths.
     # I cheated by making the autotest parts not have ./
@@ -218,14 +201,15 @@ Test run options: --seed 42
 
     Object.const_set(:ATestCase, tc)
 
-    @tu.run %w[-s 42]
+    @tu.run %w[--seed 42]
+
+    expected = "Run options: --seed 42
 
-    expected = "Test run options: --seed 42
+# Running tests:
 
-Loaded suite blah
-Started
 E.
-Finished in 0.00
+
+Finished tests in 0.00
 
   1) Error:
 test_error(ATestCase):
@@ -233,8 +217,6 @@ RuntimeError: unhandled exception
     FILE:LINE:in `test_error'
 
 2 tests, 1 assertions, 0 failures, 1 errors, 0 skips
-
-Test run options: --seed 42
 "
     assert_report expected
   end
@@ -252,14 +234,15 @@ Test run options: --seed 42
 
     Object.const_set(:ATestCase, tc)
 
-    @tu.run %w[-s 42]
+    @tu.run %w[--seed 42]
 
-    expected = "Test run options: --seed 42
+    expected = "Run options: --seed 42
+
+# Running tests:
 
-Loaded suite blah
-Started
 E
-Finished in 0.00
+
+Finished tests in 0.00
 
   1) Error:
 test_something(ATestCase):
@@ -267,8 +250,6 @@ RuntimeError: unhandled exception
     FILE:LINE:in `teardown'
 
 1 tests, 1 assertions, 0 failures, 1 errors, 0 skips
-
-Test run options: --seed 42
 "
     assert_report expected
   end
@@ -286,22 +267,21 @@ Test run options: --seed 42
 
     Object.const_set(:ATestCase, tc)
 
-    @tu.run %w[-s 42]
+    @tu.run %w[--seed 42]
+
+    expected = "Run options: --seed 42
 
-    expected = "Test run options: --seed 42
+# Running tests:
 
-Loaded suite blah
-Started
 F.
-Finished in 0.00
+
+Finished tests in 0.00
 
   1) Failure:
 test_failure(ATestCase) [FILE:LINE]:
 Failed assertion, no message given.
 
 2 tests, 2 assertions, 1 failures, 0 errors, 0 skips
-
-Test run options: --seed 42
 "
     assert_report expected
   end
@@ -319,18 +299,17 @@ Test run options: --seed 42
 
     Object.const_set(:ATestCase, tc)
 
-    @tu.run %w[-n /something/ -s 42]
+    @tu.run %w[--name /some|thing/ --seed 42]
+
+    expected = "Run options: --name \"/some|thing/\" --seed 42
 
-    expected = "Test run options: --seed 42 --name \"/something/\"
+# Running tests:
 
-Loaded suite blah
-Started
 .
-Finished in 0.00
 
-1 tests, 1 assertions, 0 failures, 0 errors, 0 skips
+Finished tests in 0.00
 
-Test run options: --seed 42 --name \"/something/\"
+1 tests, 1 assertions, 0 failures, 0 errors, 0 skips
 "
     assert_report expected
   end
@@ -344,7 +323,7 @@ Test run options: --seed 42 --name \"/something/\"
 
     Object.const_set(:ATestCase, tc)
 
-    @tu.run %w[-s 42]
+    @tu.run %w[--seed 42]
 
     assert_report
   end
@@ -362,22 +341,21 @@ Test run options: --seed 42 --name \"/something/\"
 
     Object.const_set(:ATestCase, tc)
 
-    @tu.run %w[-s 42]
+    @tu.run %w[--seed 42]
 
-    expected = "Test run options: --seed 42
+    expected = "Run options: --seed 42
+
+# Running tests:
 
-Loaded suite blah
-Started
 S.
-Finished in 0.00
+
+Finished tests in 0.00
 
   1) Skipped:
 test_skip(ATestCase) [FILE:LINE]:
 not yet
 
 2 tests, 1 assertions, 0 failures, 0 errors, 1 skips
-
-Test run options: --seed 42
 "
     assert_report expected
   end
@@ -391,7 +369,7 @@ Test run options: --seed 42
   end
 end
 
-class TestMiniTestTestCase < MiniTest::Unit::TestCase
+class TestMiniTestUnitTestCase < MiniTest::Unit::TestCase
   def setup
     MiniTest::Unit::TestCase.reset
 
@@ -548,9 +526,9 @@ class TestMiniTestTestCase < MiniTest::Unit::TestCase
 
     pattern = Object.new
     def pattern.=~(other) false end
-    def pattern.inspect; "<<Object>>" end
+    def pattern.inspect; "[Object]" end
 
-    util_assert_triggered 'Expected <<Object>> to match 5.' do
+    util_assert_triggered 'Expected [Object] to match 5.' do
       @tc.assert_match pattern, 5
     end
   end
@@ -663,8 +641,8 @@ class TestMiniTestTestCase < MiniTest::Unit::TestCase
   end
 
   def test_assert_raises_module
-    @tc.assert_raises M do
-      raise E
+    @tc.assert_raises MyModule do
+      raise AnError
     end
   end
 
@@ -736,13 +714,13 @@ FILE:LINE:in `test_assert_raises_triggered_different_msg'
   def test_assert_raises_triggered_subclass
     e = assert_raises MiniTest::Assertion do
       @tc.assert_raises StandardError do
-        raise E
+        raise AnError
       end
     end
 
     expected = "[StandardError] exception expected, not
-Class: <E>
-Message: <\"E\">
+Class: <AnError>
+Message: <\"AnError\">
 ---Backtrace---
 FILE:LINE:in `test_assert_raises_triggered_subclass'
 ---------------"
@@ -1023,9 +1001,9 @@ FILE:LINE:in `test_assert_raises_triggered_subclass'
 
     pattern = Object.new
     def pattern.=~(other) true end
-    def pattern.inspect; "<<Object>>" end
+    def pattern.inspect; "[Object]" end
 
-    util_assert_triggered 'Expected <<Object>> to not match 5.' do
+    util_assert_triggered 'Expected [Object] to not match 5.' do
       @tc.refute_match pattern, 5
     end
   end