From 4da89e192a757ee06e00bea15c6fe659d424ca32 Mon Sep 17 00:00:00 2001 From: marcandre Date: Wed, 19 Nov 2014 17:32:58 +0000 Subject: * lib/matrix.rb: Add Vector#angle_with Patch by Egunov Dmitriy [#10442] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48505 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/matrix/test_vector.rb | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'test') diff --git a/test/matrix/test_vector.rb b/test/matrix/test_vector.rb index a063d2ca12..9607755feb 100644 --- a/test/matrix/test_vector.rb +++ b/test/matrix/test_vector.rb @@ -182,4 +182,15 @@ class TestVector < Test::Unit::TestCase assert_raise(ArgumentError) { Vector[1, 2].cross_product(Vector[2, -1]) } assert_raise(Vector::ErrOperationNotDefined) { Vector[1].cross_product } end + + def test_angle_with + assert_in_epsilon(Math::PI, Vector[1, 0].angle_with(Vector[-1, 0])) + assert_in_epsilon(Math::PI/2, Vector[1, 0].angle_with(Vector[0, -1])) + assert_in_epsilon(Math::PI/4, Vector[2, 2].angle_with(Vector[0, 1])) + assert_in_delta(0.0, Vector[1, 1].angle_with(Vector[1, 1]), 0.00001) + + assert_raise(Vector::ZeroVectorError) { Vector[1, 1].angle_with(Vector[0, 0]) } + assert_raise(Vector::ZeroVectorError) { Vector[0, 0].angle_with(Vector[1, 1]) } + assert_raise(Matrix::ErrDimensionMismatch) { Vector[1, 2, 3].angle_with(Vector[0, 1]) } + end end -- cgit v1.2.3