1 files changed, 18 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/vector/normalize_spec.rb b/spec/ruby/library/matrix/vector/normalize_spec.rb
new file mode 100644
index 0000000000..14aac1f5e3
--- /dev/null
+++ b/spec/ruby/library/matrix/vector/normalize_spec.rb
@@ -0,0 +1,18 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'matrix'
+
+describe "Vector#normalize" do
+  it "returns a normalized copy of the vector" do
+    x = 0.2672612419124244
+    Vector[1, 2, 3].normalize.should == Vector[x, x * 2, x * 3]
+  end
+
+  it "raises an error for zero vectors" do
+    lambda {
+      Vector[].normalize
+    }.should raise_error(Vector::ZeroVectorError)
+    lambda {
+      Vector[0, 0, 0].normalize
+    }.should raise_error(Vector::ZeroVectorError)
+  end
+end