Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/library/matrix/build_spec.rb

@@ -0,0 +1,73 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+require 'matrix'
+
+describe "Matrix.build" do
+
+  it "returns a Matrix object of the given size" do
+    m = Matrix.build(3, 4){1}
+    m.should be_an_instance_of(Matrix)
+    m.row_size.should == 3
+    m.column_size.should == 4
+  end
+
+  it "builds the Matrix using the given block" do
+    Matrix.build(2, 3){|col, row| 10*col - row}.should ==
+      Matrix[[0, -1, -2], [10, 9, 8]]
+  end
+
+  it "iterates through the first row, then the second, ..." do
+    acc = []
+    Matrix.build(2, 3){|*args| acc << args}
+    acc.should == [[0, 0], [0, 1], [0, 2], [1, 0], [1, 1], [1, 2]]
+  end
+
+  it "returns an Enumerator is no block is given" do
+    enum = Matrix.build(2, 1)
+    enum.should  be_an_instance_of(Enumerator)
+    enum.each{1}.should == Matrix[[1], [1]]
+  end
+
+  it "requires integers as parameters" do
+    lambda { Matrix.build("1", "2"){1} }.should raise_error(TypeError)
+    lambda { Matrix.build(nil, nil){1} }.should raise_error(TypeError)
+    lambda { Matrix.build(1..2){1} }.should raise_error(TypeError)
+  end
+
+  it "requires non-negative integers" do
+    lambda { Matrix.build(-1, 1){1} }.should raise_error(ArgumentError)
+    lambda { Matrix.build(+1,-1){1} }.should raise_error(ArgumentError)
+  end
+
+  it "returns empty Matrix if one argument is zero" do
+    m = Matrix.build(0, 3){
+      raise "Should not yield"
+    }
+    m.should be_empty
+    m.column_size.should == 3
+
+    m = Matrix.build(3, 0){
+      raise "Should not yield"
+    }
+    m.should be_empty
+    m.row_size.should == 3
+  end
+
+  it "tries to calls :to_int on arguments" do
+    int = mock('int')
+    int.should_receive(:to_int).twice.and_return(2)
+    Matrix.build(int, int){ 1 }.should == Matrix[ [1,1], [1,1] ]
+  end
+
+  it "builds an nxn Matrix when given only one argument" do
+    m = Matrix.build(3){1}
+    m.row_size.should == 3
+    m.column_size.should == 3
+  end
+end
+
+describe "for a subclass of Matrix" do
+  it "returns an instance of that subclass" do
+    MatrixSub.build(3){1}.should be_an_instance_of(MatrixSub)
+  end
+end