1 files changed, 40 insertions, 0 deletions
diff --git a/spec/ruby/library/datetime/minute_spec.rb b/spec/ruby/library/datetime/minute_spec.rb
new file mode 100644
index 0000000000..6e99752de7
--- /dev/null
+++ b/spec/ruby/library/datetime/minute_spec.rb
@@ -0,0 +1,40 @@
+require_relative '../../spec_helper'
+require 'date'
+
+describe "DateTime#minute" do
+  it "returns 0 if no argument is passed" do
+    DateTime.new.minute.should == 0
+  end
+
+  it "returns the minute passed as argument" do
+    new_datetime(minute: 5).minute.should == 5
+  end
+
+  it "adds 60 to negative minutes" do
+    new_datetime(minute: -20).minute.should == 40
+  end
+
+  it "raises an error for Rational" do
+    -> { new_datetime minute: 5 + Rational(1,2) }.should.raise(ArgumentError)
+  end
+
+  it "raises an error for Float" do
+    -> { new_datetime minute: 5.5 }.should.raise(ArgumentError)
+  end
+
+  it "raises an error for Rational" do
+    -> { new_datetime(hour: 2 + Rational(1,2)) }.should.raise(ArgumentError)
+  end
+
+  it "raises an error, when the minute is smaller than -60" do
+    -> { new_datetime(minute: -61) }.should.raise(ArgumentError)
+  end
+
+  it "raises an error, when the minute is greater or equal than 60" do
+    -> { new_datetime(minute: 60) }.should.raise(ArgumentError)
+  end
+
+  it "raises an error for minute fractions smaller than -60" do
+    -> { new_datetime(minute: -60 - Rational(1,2))}.should.raise(ArgumentError)
+  end
+end