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-rw-r--r--spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb33
-rw-r--r--spec/ruby/library/matrix/lup_decomposition/initialize_spec.rb21
-rw-r--r--spec/ruby/library/matrix/lup_decomposition/l_spec.rb27
-rw-r--r--spec/ruby/library/matrix/lup_decomposition/p_spec.rb27
-rw-r--r--spec/ruby/library/matrix/lup_decomposition/solve_spec.rb85
-rw-r--r--spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb53
-rw-r--r--spec/ruby/library/matrix/lup_decomposition/u_spec.rb27
7 files changed, 126 insertions, 147 deletions
diff --git a/spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb b/spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb
index 1ac4bc971e..9d733066c1 100644
--- a/spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb
@@ -1,24 +1,21 @@
require_relative '../../../spec_helper'
+require 'matrix'
-ruby_version_is ""..."3.1" do
- require 'matrix'
-
- describe "Matrix::LUPDecomposition#determinant" do
- it "returns the determinant when the matrix is square" do
- a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
- a.lup.determinant.should == 15120 # == a.determinant
- end
+describe "Matrix::LUPDecomposition#determinant" do
+ it "returns the determinant when the matrix is square" do
+ a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+ a.lup.determinant.should == 15120 # == a.determinant
+ end
- it "raises an error for rectangular matrices" do
- [
- Matrix[[7, 8, 9], [14, 46, 51]],
- Matrix[[7, 8], [14, 46], [28, 82]],
- ].each do |m|
- lup = m.lup
- -> {
- lup.determinant
- }.should raise_error(Matrix::ErrDimensionMismatch)
- end
+ it "raises an error for rectangular matrices" do
+ [
+ Matrix[[7, 8, 9], [14, 46, 51]],
+ Matrix[[7, 8], [14, 46], [28, 82]],
+ ].each do |m|
+ lup = m.lup
+ -> {
+ lup.determinant
+ }.should raise_error(Matrix::ErrDimensionMismatch)
end
end
end
diff --git a/spec/ruby/library/matrix/lup_decomposition/initialize_spec.rb b/spec/ruby/library/matrix/lup_decomposition/initialize_spec.rb
index 42f78c7540..36afb349e6 100644
--- a/spec/ruby/library/matrix/lup_decomposition/initialize_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/initialize_spec.rb
@@ -1,16 +1,13 @@
require_relative '../../../spec_helper'
+require 'matrix'
-ruby_version_is ""..."3.1" do
- require 'matrix'
-
- describe "Matrix::LUPDecomposition#initialize" do
- it "raises an error if argument is not a matrix" do
- -> {
- Matrix::LUPDecomposition.new([[]])
- }.should raise_error(TypeError)
- -> {
- Matrix::LUPDecomposition.new(42)
- }.should raise_error(TypeError)
- end
+describe "Matrix::LUPDecomposition#initialize" do
+ it "raises an error if argument is not a matrix" do
+ -> {
+ Matrix::LUPDecomposition.new([[]])
+ }.should raise_error(TypeError)
+ -> {
+ Matrix::LUPDecomposition.new(42)
+ }.should raise_error(TypeError)
end
end
diff --git a/spec/ruby/library/matrix/lup_decomposition/l_spec.rb b/spec/ruby/library/matrix/lup_decomposition/l_spec.rb
index 6c751f12b7..9514ab5d06 100644
--- a/spec/ruby/library/matrix/lup_decomposition/l_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/l_spec.rb
@@ -1,21 +1,18 @@
require_relative '../../../spec_helper'
+require 'matrix'
-ruby_version_is ""..."3.1" do
- require 'matrix'
-
- describe "Matrix::LUPDecomposition#l" do
- before :each do
- @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
- @lu = Matrix::LUPDecomposition.new(@a)
- @l = @lu.l
- end
+describe "Matrix::LUPDecomposition#l" do
+ before :each do
+ @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+ @lu = Matrix::LUPDecomposition.new(@a)
+ @l = @lu.l
+ end
- it "returns the first element of to_a" do
- @l.should == @lu.to_a[0]
- end
+ it "returns the first element of to_a" do
+ @l.should == @lu.to_a[0]
+ end
- it "returns a lower triangular matrix" do
- @l.lower_triangular?.should be_true
- end
+ it "returns a lower triangular matrix" do
+ @l.lower_triangular?.should be_true
end
end
diff --git a/spec/ruby/library/matrix/lup_decomposition/p_spec.rb b/spec/ruby/library/matrix/lup_decomposition/p_spec.rb
index 481f8a17d5..c7b5e9196e 100644
--- a/spec/ruby/library/matrix/lup_decomposition/p_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/p_spec.rb
@@ -1,21 +1,18 @@
require_relative '../../../spec_helper'
+require 'matrix'
-ruby_version_is ""..."3.1" do
- require 'matrix'
-
- describe "Matrix::LUPDecomposition#p" do
- before :each do
- @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
- @lu = Matrix::LUPDecomposition.new(@a)
- @p = @lu.p
- end
+describe "Matrix::LUPDecomposition#p" do
+ before :each do
+ @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+ @lu = Matrix::LUPDecomposition.new(@a)
+ @p = @lu.p
+ end
- it "returns the third element of to_a" do
- @p.should == @lu.to_a[2]
- end
+ it "returns the third element of to_a" do
+ @p.should == @lu.to_a[2]
+ end
- it "returns a permutation matrix" do
- @p.permutation?.should be_true
- end
+ it "returns a permutation matrix" do
+ @p.permutation?.should be_true
end
end
diff --git a/spec/ruby/library/matrix/lup_decomposition/solve_spec.rb b/spec/ruby/library/matrix/lup_decomposition/solve_spec.rb
index 773fcb3e65..66242627e9 100644
--- a/spec/ruby/library/matrix/lup_decomposition/solve_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/solve_spec.rb
@@ -1,55 +1,52 @@
require_relative '../../../spec_helper'
+require 'matrix'
+
+describe "Matrix::LUPDecomposition#solve" do
+ describe "for rectangular matrices" do
+ it "raises an error for singular matrices" do
+ a = Matrix[[1, 2, 3], [1, 3, 5], [2, 5, 8]]
+ lu = Matrix::LUPDecomposition.new(a)
+ -> {
+ lu.solve(a)
+ }.should raise_error(Matrix::ErrNotRegular)
+ end
-ruby_version_is ""..."3.1" do
- require 'matrix'
-
- describe "Matrix::LUPDecomposition#solve" do
- describe "for rectangular matrices" do
- it "raises an error for singular matrices" do
- a = Matrix[[1, 2, 3], [1, 3, 5], [2, 5, 8]]
- lu = Matrix::LUPDecomposition.new(a)
- -> {
- lu.solve(a)
- }.should raise_error(Matrix::ErrNotRegular)
+ describe "for non singular matrices" do
+ before :each do
+ @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+ @lu = Matrix::LUPDecomposition.new(@a)
end
- describe "for non singular matrices" do
- before :each do
- @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
- @lu = Matrix::LUPDecomposition.new(@a)
- end
-
- it "returns the appropriate empty matrix when given an empty matrix" do
- @lu.solve(Matrix.empty(3,0)).should == Matrix.empty(3,0)
- empty = Matrix::LUPDecomposition.new(Matrix.empty(0, 0))
- empty.solve(Matrix.empty(0,3)).should == Matrix.empty(0,3)
- end
+ it "returns the appropriate empty matrix when given an empty matrix" do
+ @lu.solve(Matrix.empty(3,0)).should == Matrix.empty(3,0)
+ empty = Matrix::LUPDecomposition.new(Matrix.empty(0, 0))
+ empty.solve(Matrix.empty(0,3)).should == Matrix.empty(0,3)
+ end
- it "returns the right matrix when given a matrix of the appropriate size" do
- solution = Matrix[[1, 2, 3, 4], [0, 1, 2, 3], [-1, -2, -3, -4]]
- values = Matrix[[-2, 4, 10, 16], [-37, -28, -19, -10], [-135, -188, -241, -294]] # == @a * solution
- @lu.solve(values).should == solution
- end
+ it "returns the right matrix when given a matrix of the appropriate size" do
+ solution = Matrix[[1, 2, 3, 4], [0, 1, 2, 3], [-1, -2, -3, -4]]
+ values = Matrix[[-2, 4, 10, 16], [-37, -28, -19, -10], [-135, -188, -241, -294]] # == @a * solution
+ @lu.solve(values).should == solution
+ end
- it "raises an error when given a matrix of the wrong size" do
- values = Matrix[[1, 2, 3, 4], [0, 1, 2, 3]]
- -> {
- @lu.solve(values)
- }.should raise_error(Matrix::ErrDimensionMismatch)
- end
+ it "raises an error when given a matrix of the wrong size" do
+ values = Matrix[[1, 2, 3, 4], [0, 1, 2, 3]]
+ -> {
+ @lu.solve(values)
+ }.should raise_error(Matrix::ErrDimensionMismatch)
+ end
- it "returns the right vector when given a vector of the appropriate size" do
- solution = Vector[1, 2, -1]
- values = Vector[14, 55, 29] # == @a * solution
- @lu.solve(values).should == solution
- end
+ it "returns the right vector when given a vector of the appropriate size" do
+ solution = Vector[1, 2, -1]
+ values = Vector[14, 55, 29] # == @a * solution
+ @lu.solve(values).should == solution
+ end
- it "raises an error when given a vector of the wrong size" do
- values = Vector[14, 55]
- -> {
- @lu.solve(values)
- }.should raise_error(Matrix::ErrDimensionMismatch)
- end
+ it "raises an error when given a vector of the wrong size" do
+ values = Vector[14, 55]
+ -> {
+ @lu.solve(values)
+ }.should raise_error(Matrix::ErrDimensionMismatch)
end
end
end
diff --git a/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb b/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb
index 8702292865..9b1dccbbac 100644
--- a/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb
@@ -1,36 +1,33 @@
require_relative '../../../spec_helper'
+require 'matrix'
-ruby_version_is ""..."3.1" do
- require 'matrix'
-
- describe "Matrix::LUPDecomposition#to_a" do
- before :each do
- @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
- @lu = Matrix::LUPDecomposition.new(@a)
- @to_a = @lu.to_a
- @l, @u, @p = @to_a
- end
+describe "Matrix::LUPDecomposition#to_a" do
+ before :each do
+ @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+ @lu = Matrix::LUPDecomposition.new(@a)
+ @to_a = @lu.to_a
+ @l, @u, @p = @to_a
+ end
- it "returns an array of three matrices" do
- @to_a.should be_kind_of(Array)
- @to_a.length.should == 3
- @to_a.each{|m| m.should be_kind_of(Matrix)}
- end
+ it "returns an array of three matrices" do
+ @to_a.should be_kind_of(Array)
+ @to_a.length.should == 3
+ @to_a.each{|m| m.should be_kind_of(Matrix)}
+ end
- it "returns [l, u, p] such that l*u == a*p" do
- (@l * @u).should == (@p * @a)
- end
+ it "returns [l, u, p] such that l*u == a*p" do
+ (@l * @u).should == (@p * @a)
+ end
- it "returns the right values for rectangular matrices" do
- [
- Matrix[[7, 8, 9], [14, 46, 51]],
- Matrix[[4, 11], [5, 8], [3, 4]],
- ].each do |a|
- l, u, p = Matrix::LUPDecomposition.new(a).to_a
- (l * u).should == (p * a)
- end
+ it "returns the right values for rectangular matrices" do
+ [
+ Matrix[[7, 8, 9], [14, 46, 51]],
+ Matrix[[4, 11], [5, 8], [3, 4]],
+ ].each do |a|
+ l, u, p = Matrix::LUPDecomposition.new(a).to_a
+ (l * u).should == (p * a)
end
-
- it "has other properties implied by the specs of #l, #u and #p"
end
+
+ it "has other properties implied by the specs of #l, #u and #p"
end
diff --git a/spec/ruby/library/matrix/lup_decomposition/u_spec.rb b/spec/ruby/library/matrix/lup_decomposition/u_spec.rb
index cd884b88ec..ca3dfc1f00 100644
--- a/spec/ruby/library/matrix/lup_decomposition/u_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/u_spec.rb
@@ -1,21 +1,18 @@
require_relative '../../../spec_helper'
+require 'matrix'
-ruby_version_is ""..."3.1" do
- require 'matrix'
-
- describe "Matrix::LUPDecomposition#u" do
- before :each do
- @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
- @lu = Matrix::LUPDecomposition.new(@a)
- @u = @lu.u
- end
+describe "Matrix::LUPDecomposition#u" do
+ before :each do
+ @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+ @lu = Matrix::LUPDecomposition.new(@a)
+ @u = @lu.u
+ end
- it "returns the second element of to_a" do
- @u.should == @lu.to_a[1]
- end
+ it "returns the second element of to_a" do
+ @u.should == @lu.to_a[1]
+ end
- it "returns an upper triangular matrix" do
- @u.upper_triangular?.should be_true
- end
+ it "returns an upper triangular matrix" do
+ @u.upper_triangular?.should be_true
end
end
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