Update to ruby/mspec@353605f

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59430 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 277 insertions, 27 deletions

diff --git a/spec/mspec/spec/guards/guard_spec.rb b/spec/mspec/spec/guards/guard_spec.rb
index ca7dba6455..f2828dd4ad 100644
--- a/spec/mspec/spec/guards/guard_spec.rb
+++ b/spec/mspec/spec/guards/guard_spec.rb
@@ -178,3 +178,249 @@ SomeClass#reverse returns false
 ]
   end
 end
+
+describe SpecGuard, ".run_if" do
+  before :each do
+    @guard = SpecGuard.new
+    ScratchPad.clear
+  end
+
+  it "yields if match? returns true" do
+    @guard.stub(:match?).and_return(true)
+    @guard.run_if(:name) { ScratchPad.record :yield }
+    ScratchPad.recorded.should == :yield
+  end
+
+  it "does not yield if match? returns false" do
+    @guard.stub(:match?).and_return(false)
+    @guard.run_if(:name) { fail }
+  end
+
+  it "returns the result of the block if match? is true" do
+    @guard.stub(:match?).and_return(true)
+    @guard.run_if(:name) { 42 }.should == 42
+  end
+
+  it "returns nil if given a block and match? is false" do
+    @guard.stub(:match?).and_return(false)
+    @guard.run_if(:name) { 42 }.should == nil
+  end
+
+  it "returns what #match? returns when no block is given" do
+    @guard.stub(:match?).and_return(true)
+    @guard.run_if(:name).should == true
+    @guard.stub(:match?).and_return(false)
+    @guard.run_if(:name).should == false
+  end
+end
+
+describe SpecGuard, ".run_unless" do
+  before :each do
+    @guard = SpecGuard.new
+    ScratchPad.clear
+  end
+
+  it "yields if match? returns false" do
+    @guard.stub(:match?).and_return(false)
+    @guard.run_unless(:name) { ScratchPad.record :yield }
+    ScratchPad.recorded.should == :yield
+  end
+
+  it "does not yield if match? returns true" do
+    @guard.stub(:match?).and_return(true)
+    @guard.run_unless(:name) { fail }
+  end
+
+  it "returns the result of the block if match? is false" do
+    @guard.stub(:match?).and_return(false)
+    @guard.run_unless(:name) { 42 }.should == 42
+  end
+
+  it "returns nil if given a block and match? is true" do
+    @guard.stub(:match?).and_return(true)
+    @guard.run_unless(:name) { 42 }.should == nil
+  end
+
+  it "returns the opposite of what #match? returns when no block is given" do
+    @guard.stub(:match?).and_return(true)
+    @guard.run_unless(:name).should == false
+    @guard.stub(:match?).and_return(false)
+    @guard.run_unless(:name).should == true
+  end
+end
+
+describe Object, "#guard" do
+  before :each do
+    ScratchPad.clear
+  end
+
+  after :each do
+    MSpec.clear_modes
+  end
+
+  it "allows to combine guards" do
+    guard1 = VersionGuard.new 'x.x.x'
+    VersionGuard.stub(:new).and_return(guard1)
+    guard2 = PlatformGuard.new :dummy
+    PlatformGuard.stub(:new).and_return(guard2)
+
+    guard1.stub(:match?).and_return(true)
+    guard2.stub(:match?).and_return(true)
+    guard -> { ruby_version_is "2.4" and platform_is :linux } do
+      ScratchPad.record :yield
+    end
+    ScratchPad.recorded.should == :yield
+
+    guard1.stub(:match?).and_return(false)
+    guard2.stub(:match?).and_return(true)
+    guard -> { ruby_version_is "2.4" and platform_is :linux } do
+      fail
+    end
+
+    guard1.stub(:match?).and_return(true)
+    guard2.stub(:match?).and_return(false)
+    guard -> { ruby_version_is "2.4" and platform_is :linux } do
+      fail
+    end
+
+    guard1.stub(:match?).and_return(false)
+    guard2.stub(:match?).and_return(false)
+    guard -> { ruby_version_is "2.4" and platform_is :linux } do
+      fail
+    end
+  end
+
+  it "yields when the Proc returns true" do
+    guard -> { true } do
+      ScratchPad.record :yield
+    end
+    ScratchPad.recorded.should == :yield
+  end
+
+  it "does not yield when the Proc returns false" do
+    guard -> { false } do
+      fail
+    end
+  end
+
+  it "yields if MSpec.mode?(:unguarded) is true" do
+    MSpec.register_mode :unguarded
+
+    guard -> { false } do
+      ScratchPad.record :yield1
+    end
+    ScratchPad.recorded.should == :yield1
+
+    guard -> { true } do
+      ScratchPad.record :yield2
+    end
+    ScratchPad.recorded.should == :yield2
+  end
+
+  it "yields if MSpec.mode?(:verify) is true" do
+    MSpec.register_mode :verify
+
+    guard -> { false } do
+      ScratchPad.record :yield1
+    end
+    ScratchPad.recorded.should == :yield1
+
+    guard -> { true } do
+      ScratchPad.record :yield2
+    end
+    ScratchPad.recorded.should == :yield2
+  end
+
+  it "yields if MSpec.mode?(:report) is true" do
+    MSpec.register_mode :report
+
+    guard -> { false } do
+      ScratchPad.record :yield1
+    end
+    ScratchPad.recorded.should == :yield1
+
+    guard -> { true } do
+      ScratchPad.record :yield2
+    end
+    ScratchPad.recorded.should == :yield2
+  end
+
+  it "raises an error if no Proc is given" do
+    -> { guard :foo }.should raise_error(RuntimeError)
+  end
+
+  it "requires a block" do
+    -> {
+      guard(-> { true })
+    }.should raise_error(LocalJumpError)
+    -> {
+      guard(-> { false })
+    }.should raise_error(LocalJumpError)
+  end
+end
+
+describe Object, "#guard_not" do
+  before :each do
+    ScratchPad.clear
+  end
+
+  it "allows to combine guards" do
+    guard1 = VersionGuard.new 'x.x.x'
+    VersionGuard.stub(:new).and_return(guard1)
+    guard2 = PlatformGuard.new :dummy
+    PlatformGuard.stub(:new).and_return(guard2)
+
+    guard1.stub(:match?).and_return(true)
+    guard2.stub(:match?).and_return(true)
+    guard_not -> { ruby_version_is "2.4" and platform_is :linux } do
+      fail
+    end
+
+    guard1.stub(:match?).and_return(false)
+    guard2.stub(:match?).and_return(true)
+    guard_not -> { ruby_version_is "2.4" and platform_is :linux } do
+      ScratchPad.record :yield1
+    end
+    ScratchPad.recorded.should == :yield1
+
+    guard1.stub(:match?).and_return(true)
+    guard2.stub(:match?).and_return(false)
+    guard_not -> { ruby_version_is "2.4" and platform_is :linux } do
+      ScratchPad.record :yield2
+    end
+    ScratchPad.recorded.should == :yield2
+
+    guard1.stub(:match?).and_return(false)
+    guard2.stub(:match?).and_return(false)
+    guard_not -> { ruby_version_is "2.4" and platform_is :linux } do
+      ScratchPad.record :yield3
+    end
+    ScratchPad.recorded.should == :yield3
+  end
+
+  it "yields when the Proc returns false" do
+    guard_not -> { false } do
+      ScratchPad.record :yield
+    end
+    ScratchPad.recorded.should == :yield
+  end
+
+  it "does not yield when the Proc returns true" do
+    guard_not -> { true } do
+      fail
+    end
+  end
+
+  it "raises an error if no Proc is given" do
+    -> { guard_not :foo }.should raise_error(RuntimeError)
+  end
+
+  it "requires a block" do
+    -> {
+      guard_not(-> { true })
+    }.should raise_error(LocalJumpError)
+    -> {
+      guard_not(-> { false })
+    }.should raise_error(LocalJumpError)
+  end
+end
diff --git a/spec/mspec/spec/guards/platform_spec.rb b/spec/mspec/spec/guards/platform_spec.rb
index f0af12c1f8..749963d3db 100644
--- a/spec/mspec/spec/guards/platform_spec.rb
+++ b/spec/mspec/spec/guards/platform_spec.rb
@@ -20,6 +20,13 @@ describe Object, "#platform_is" do
     ScratchPad.recorded.should == :yield
   end
 
+  it "returns what #os? returns when no block is given" do
+    PlatformGuard.stub(:os?).and_return(true)
+    platform_is(:solarce).should == true
+    PlatformGuard.stub(:os?).and_return(false)
+    platform_is(:solarce).should == false
+  end
+
   it "sets the name of the guard to :platform_is" do
     platform_is(:solarce) { }
     @guard.name.should == :platform_is
@@ -53,6 +60,13 @@ describe Object, "#platform_is_not" do
     ScratchPad.recorded.should == :yield
   end
 
+  it "returns the opposite of what #os? returns when no block is given" do
+    PlatformGuard.stub(:os?).and_return(true)
+    platform_is_not(:solarce).should == false
+    PlatformGuard.stub(:os?).and_return(false)
+    platform_is_not(:solarce).should == true
+  end
+
   it "sets the name of the guard to :platform_is_not" do
     platform_is_not(:solarce) { }
     @guard.name.should == :platform_is_not
@@ -110,66 +124,49 @@ describe Object, "#platform_is_not :wordsize => SIZE_SPEC" do
 end
 
 describe PlatformGuard, ".implementation?" do
-  before :all do
-    @verbose = $VERBOSE
-    $VERBOSE = nil
-  end
-
-  after :all do
-    $VERBOSE = @verbose
-  end
-
-  before :each do
-    @ruby_engine = Object.const_get :RUBY_ENGINE
-  end
-
-  after :each do
-    Object.const_set :RUBY_ENGINE, @ruby_engine
-  end
-
   it "returns true if passed :ruby and RUBY_ENGINE == 'ruby'" do
-    Object.const_set :RUBY_ENGINE, 'ruby'
+    stub_const 'RUBY_ENGINE', 'ruby'
     PlatformGuard.implementation?(:ruby).should == true
   end
 
   it "returns true if passed :rubinius and RUBY_ENGINE == 'rbx'" do
-    Object.const_set :RUBY_ENGINE, 'rbx'
+    stub_const 'RUBY_ENGINE', 'rbx'
     PlatformGuard.implementation?(:rubinius).should == true
   end
 
   it "returns true if passed :jruby and RUBY_ENGINE == 'jruby'" do
-    Object.const_set :RUBY_ENGINE, 'jruby'
+    stub_const 'RUBY_ENGINE', 'jruby'
     PlatformGuard.implementation?(:jruby).should == true
   end
 
   it "returns true if passed :ironruby and RUBY_ENGINE == 'ironruby'" do
-    Object.const_set :RUBY_ENGINE, 'ironruby'
+    stub_const 'RUBY_ENGINE', 'ironruby'
     PlatformGuard.implementation?(:ironruby).should == true
   end
 
   it "returns true if passed :maglev and RUBY_ENGINE == 'maglev'" do
-    Object.const_set :RUBY_ENGINE, 'maglev'
+    stub_const 'RUBY_ENGINE', 'maglev'
     PlatformGuard.implementation?(:maglev).should == true
   end
 
   it "returns true if passed :topaz and RUBY_ENGINE == 'topaz'" do
-    Object.const_set :RUBY_ENGINE, 'topaz'
+    stub_const 'RUBY_ENGINE', 'topaz'
     PlatformGuard.implementation?(:topaz).should == true
   end
 
   it "returns true if passed :ruby and RUBY_ENGINE matches /^ruby/" do
-    Object.const_set :RUBY_ENGINE, 'ruby'
+    stub_const 'RUBY_ENGINE', 'ruby'
     PlatformGuard.implementation?(:ruby).should == true
 
-    Object.const_set :RUBY_ENGINE, 'ruby1.8'
+    stub_const 'RUBY_ENGINE', 'ruby1.8'
     PlatformGuard.implementation?(:ruby).should == true
 
-    Object.const_set :RUBY_ENGINE, 'ruby1.9'
+    stub_const 'RUBY_ENGINE', 'ruby1.9'
     PlatformGuard.implementation?(:ruby).should == true
   end
 
   it "raises an error when passed an unrecognized name" do
-    Object.const_set :RUBY_ENGINE, 'ruby'
+    stub_const 'RUBY_ENGINE', 'ruby'
     lambda {
       PlatformGuard.implementation?(:python)
     }.should raise_error(/unknown implementation/)
diff --git a/spec/mspec/spec/guards/version_spec.rb b/spec/mspec/spec/guards/version_spec.rb
index f11e3dbd94..07eb451ec9 100644
--- a/spec/mspec/spec/guards/version_spec.rb
+++ b/spec/mspec/spec/guards/version_spec.rb
@@ -68,6 +68,13 @@ describe Object, "#ruby_version_is" do
     ScratchPad.recorded.should_not == :yield
   end
 
+  it "returns what #match? returns when no block is given" do
+    @guard.stub(:match?).and_return(true)
+    ruby_version_is('x.x.x').should == true
+    @guard.stub(:match?).and_return(false)
+    ruby_version_is('x.x.x').should == false
+  end
+
   it "sets the name of the guard to :ruby_version_is" do
     ruby_version_is("") { }
     @guard.name.should == :ruby_version_is