die_spec.rb in games_dice-0.4.0

- old
+ new
@@ -1,81 +1,81 @@
-require 'helpers'
-
-describe GamesDice::Die do
-
-  before do
-    # Set state of default PRNG
-    srand(4567)
-  end
-
-  describe "#new" do
-    it "should return an object that represents e.g. a six-sided die" do
-      die = GamesDice::Die.new(6)
-      die.min.should == 1
-      die.max.should == 6
-      die.sides.should == 6
-    end
-
-    it "should accept any object with a rand(Integer) method as the second param" do
-      prng = TestPRNG.new()
-      die = GamesDice::Die.new(20,prng)
-      [16,7,3,11,16,18,20,7].each do |expected|
-        die.roll.should == expected
-        die.result.should == expected
-      end
-    end
-  end
-
-  describe "#roll and #result" do
-    it "should return results based on Ruby's internal rand() by default" do
-    die = GamesDice::Die.new(10)
-      [5,4,10,4,7,8,1,9].each do |expected|
-        die.roll.should == expected
-        die.result.should == expected
-      end
-    end
-  end
-
-  describe "#min and #max" do
-    it "should calculate correct min, max" do
-      die = GamesDice::Die.new(20)
-      die.min.should == 1
-      die.max.should == 20
-    end
-  end
-
-  describe "#probabilities" do
-    it "should return the die's probability distribution as a GamesDice::Probabilities object" do
-      die = GamesDice::Die.new(6)
-      probs = die.probabilities
-      probs.should be_a GamesDice::Probabilities
-
-      probs.to_h.should be_valid_distribution
-
-      probs.p_eql(1).should be_within(1e-10).of 1/6.0
-      probs.p_eql(2).should be_within(1e-10).of 1/6.0
-      probs.p_eql(3).should be_within(1e-10).of 1/6.0
-      probs.p_eql(4).should be_within(1e-10).of 1/6.0
-      probs.p_eql(5).should be_within(1e-10).of 1/6.0
-      probs.p_eql(6).should be_within(1e-10).of 1/6.0
-
-      probs.expected.should be_within(1e-10).of 3.5
-    end
-  end
-
-  describe "#all_values" do
-    it "should return array with one result value per side" do
-      die = GamesDice::Die.new(8)
-      die.all_values.should == [1,2,3,4,5,6,7,8]
-    end
-  end
-
-  describe "#each_value" do
-    it "should iterate through all sides of the die" do
-      die = GamesDice::Die.new(10)
-      arr = []
-      die.each_value { |x| arr << x }
-      arr.should == [1,2,3,4,5,6,7,8,9,10]
-    end
-  end
-
-end
\ No newline at end of file
+# frozen_string_literal: true
+
+require 'helpers'
+
+describe GamesDice::Die do
+  before do
+    # Set state of default PRNG
+    srand(4567)
+  end
+
+  describe '#new' do
+    it 'should return an object that represents e.g. a six-sided die' do
+      die = GamesDice::Die.new(6)
+      expect(die.min).to eql 1
+      expect(die.max).to eql 6
+      expect(die.sides).to eql 6
+    end
+
+    it 'should accept any object with a rand(Integer) method as the second param' do
+      prng = TestPRNG.new
+      die = GamesDice::Die.new(20, prng)
+      [16, 7, 3, 11, 16, 18, 20, 7].each do |expected|
+        expect(die.roll).to eql expected
+        expect(die.result).to eql expected
+      end
+    end
+  end
+
+  describe '#roll and #result' do
+    it "should return results based on Ruby's internal rand() by default" do
+      die = GamesDice::Die.new(10)
+      [5, 4, 10, 4, 7, 8, 1, 9].each do |expected|
+        expect(die.roll).to eql expected
+        expect(die.result).to eql expected
+      end
+    end
+  end
+
+  describe '#min and #max' do
+    it 'should calculate correct min, max' do
+      die = GamesDice::Die.new(20)
+      expect(die.min).to eql 1
+      expect(die.max).to eql 20
+    end
+  end
+
+  describe '#probabilities' do
+    it "should return the die's probability distribution as a GamesDice::Probabilities object" do
+      die = GamesDice::Die.new(6)
+      probs = die.probabilities
+      expect(probs).to be_a GamesDice::Probabilities
+
+      expect(probs.to_h).to be_valid_distribution
+
+      expect(probs.p_eql(1)).to be_within(1e-10).of 1 / 6.0
+      expect(probs.p_eql(2)).to be_within(1e-10).of 1 / 6.0
+      expect(probs.p_eql(3)).to be_within(1e-10).of 1 / 6.0
+      expect(probs.p_eql(4)).to be_within(1e-10).of 1 / 6.0
+      expect(probs.p_eql(5)).to be_within(1e-10).of 1 / 6.0
+      expect(probs.p_eql(6)).to be_within(1e-10).of 1 / 6.0
+
+      expect(probs.expected).to be_within(1e-10).of 3.5
+    end
+  end
+
+  describe '#all_values' do
+    it 'should return array with one result value per side' do
+      die = GamesDice::Die.new(8)
+      expect(die.all_values).to eql [1, 2, 3, 4, 5, 6, 7, 8]
+    end
+  end
+
+  describe '#each_value' do
+    it 'should iterate through all sides of the die' do
+      die = GamesDice::Die.new(10)
+      arr = []
+      die.each_value { |x| arr << x }
+      expect(arr).to eql [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+    end
+  end
+end