5 files changed, 267 insertions, 0 deletions
diff --git a/spec/ruby/library/securerandom/base64_spec.rb b/spec/ruby/library/securerandom/base64_spec.rb
new file mode 100644
index 0000000000..49d4b8a029
--- /dev/null
+++ b/spec/ruby/library/securerandom/base64_spec.rb
@@ -0,0 +1,55 @@
+require_relative '../../spec_helper'
+
+require 'securerandom'
+
+describe "SecureRandom.base64" do
+  it "generates a random base64 string out of specified number of random bytes" do
+    (16..128).each do |idx|
+      base64 = SecureRandom.base64(idx)
+      base64.should.is_a?(String)
+      base64.length.should < 2 * idx
+      base64.should =~ /^[A-Za-z0-9\+\/]+={0,2}$/
+    end
+
+    base64 = SecureRandom.base64(16.5)
+    base64.should.is_a?(String)
+    base64.length.should < 2 * 16
+  end
+
+  it "returns an empty string when argument is 0" do
+    SecureRandom.base64(0).should == ""
+  end
+
+  it "generates different base64 strings with subsequent invocations" do
+    # quick and dirty check, but good enough
+    values = []
+    256.times do
+      base64 = SecureRandom.base64
+      # make sure the random values are not repeating
+      values.include?(base64).should == false
+      values << base64
+    end
+  end
+
+  it "generates a random base64 string out of 32 random bytes" do
+    SecureRandom.base64.should.is_a?(String)
+    SecureRandom.base64.length.should < 32 * 2
+  end
+
+  it "treats nil argument as default one and generates a random base64 string" do
+    SecureRandom.base64(nil).should.is_a?(String)
+    SecureRandom.base64(nil).length.should < 32 * 2
+  end
+
+  it "raises ArgumentError on negative arguments" do
+    -> {
+      SecureRandom.base64(-1)
+    }.should.raise(ArgumentError)
+  end
+
+  it "tries to convert the passed argument to an Integer using #to_int" do
+    obj = mock("to_int")
+    obj.should_receive(:to_int).and_return(5)
+    SecureRandom.base64(obj).size.should < 10
+  end
+end
diff --git a/spec/ruby/library/securerandom/bytes_spec.rb b/spec/ruby/library/securerandom/bytes_spec.rb
new file mode 100644
index 0000000000..a1ab836d16
--- /dev/null
+++ b/spec/ruby/library/securerandom/bytes_spec.rb
@@ -0,0 +1,8 @@
+require_relative '../../spec_helper'
+require_relative '../../core/random/shared/bytes'
+
+require 'securerandom'
+
+describe "SecureRandom.bytes" do
+  it_behaves_like :random_bytes, :bytes, SecureRandom
+end
diff --git a/spec/ruby/library/securerandom/hex_spec.rb b/spec/ruby/library/securerandom/hex_spec.rb
new file mode 100644
index 0000000000..ec33aca1ee
--- /dev/null
+++ b/spec/ruby/library/securerandom/hex_spec.rb
@@ -0,0 +1,54 @@
+require_relative '../../spec_helper'
+
+require 'securerandom'
+
+describe "SecureRandom.hex" do
+  it "generates a random hex string of length twice the specified argument" do
+    (1..64).each do |idx|
+      hex = SecureRandom.hex(idx)
+      hex.should.is_a?(String)
+      hex.length.should == 2 * idx
+    end
+
+    base64 = SecureRandom.hex(5.5)
+    base64.should.is_a?(String)
+    base64.length.should.eql?(10)
+  end
+
+  it "returns an empty string when argument is 0" do
+    SecureRandom.hex(0).should == ""
+  end
+
+  it "generates different hex strings with subsequent invocations" do
+    # quick and dirty check, but good enough
+    values = []
+    256.times do
+      hex = SecureRandom.hex
+      # make sure the random values are not repeating
+      values.include?(hex).should == false
+      values << hex
+    end
+  end
+
+  it "generates a random hex string of length 32 if no argument is provided" do
+    SecureRandom.hex.should.is_a?(String)
+    SecureRandom.hex.length.should == 32
+  end
+
+  it "treats nil argument as default one and generates a random hex string of length 32" do
+    SecureRandom.hex(nil).should.is_a?(String)
+    SecureRandom.hex(nil).length.should == 32
+  end
+
+  it "raises ArgumentError on negative arguments" do
+    -> {
+      SecureRandom.hex(-1)
+    }.should.raise(ArgumentError)
+  end
+
+  it "tries to convert the passed argument to an Integer using #to_int" do
+    obj = mock("to_int")
+    obj.should_receive(:to_int).and_return(5)
+    SecureRandom.hex(obj).size.should.eql?(10)
+  end
+end
diff --git a/spec/ruby/library/securerandom/random_bytes_spec.rb b/spec/ruby/library/securerandom/random_bytes_spec.rb
new file mode 100644
index 0000000000..4e30a53163
--- /dev/null
+++ b/spec/ruby/library/securerandom/random_bytes_spec.rb
@@ -0,0 +1,53 @@
+require_relative '../../spec_helper'
+require_relative '../../core/random/shared/bytes'
+
+require 'securerandom'
+
+describe "SecureRandom.random_bytes" do
+  it_behaves_like :random_bytes, :random_bytes, SecureRandom
+
+  it "generates a random binary string of length 16 if no argument is provided" do
+    bytes = SecureRandom.random_bytes
+    bytes.should.is_a?(String)
+    bytes.length.should == 16
+  end
+
+  it "generates a random binary string of length 16 if argument is nil" do
+    bytes = SecureRandom.random_bytes(nil)
+    bytes.should.is_a?(String)
+    bytes.length.should == 16
+  end
+
+  it "generates a random binary string of specified length" do
+    (1..64).each do |idx|
+      bytes = SecureRandom.random_bytes(idx)
+      bytes.should.is_a?(String)
+      bytes.length.should == idx
+    end
+
+    SecureRandom.random_bytes(2.2).length.should.eql?(2)
+  end
+
+  it "generates different binary strings with subsequent invocations" do
+    # quick and dirty check, but good enough
+    values = []
+    256.times do
+      val = SecureRandom.random_bytes
+      # make sure the random bytes are not repeating
+      values.include?(val).should == false
+      values << val
+    end
+  end
+
+  it "raises ArgumentError on negative arguments" do
+    -> {
+      SecureRandom.random_bytes(-1)
+    }.should.raise(ArgumentError)
+  end
+
+  it "tries to convert the passed argument to an Integer using #to_int" do
+    obj = mock("to_int")
+    obj.should_receive(:to_int).and_return(5)
+    SecureRandom.random_bytes(obj).size.should.eql?(5)
+  end
+end
diff --git a/spec/ruby/library/securerandom/random_number_spec.rb b/spec/ruby/library/securerandom/random_number_spec.rb
new file mode 100644
index 0000000000..97cd66f7bc
--- /dev/null
+++ b/spec/ruby/library/securerandom/random_number_spec.rb
@@ -0,0 +1,97 @@
+require_relative '../../spec_helper'
+require_relative '../../core/random/shared/rand'
+
+require 'securerandom'
+
+describe "SecureRandom.random_number" do
+  it_behaves_like :random_number, :rand, SecureRandom
+  it_behaves_like :random_number, :random_number, SecureRandom
+
+  it "generates a random positive number smaller then the positive integer argument" do
+    (1..64).each do |idx|
+      num = SecureRandom.random_number(idx)
+      num.should.is_a?(Integer)
+      0.should <= num
+      num.should < idx
+    end
+  end
+
+  it "generates a random (potentially bignum) integer value for bignum argument" do
+    max = 12345678901234567890
+    11.times do
+      num = SecureRandom.random_number max
+      num.should.is_a?(Integer)
+      0.should <= num
+      num.should < max
+    end
+  end
+
+  it "generates a random float number between 0.0 and 1.0 if no argument provided" do
+    64.times do
+      num = SecureRandom.random_number
+      num.should.is_a?(Float)
+      0.0.should <= num
+      num.should < 1.0
+    end
+  end
+
+  it "generates a random value in given (integer) range limits" do
+    64.times do
+      num = SecureRandom.random_number 11...13
+      num.should.is_a?(Integer)
+      11.should <= num
+      num.should < 13
+    end
+  end
+
+  it "generates a random value in given big (integer) range limits" do
+    lower = 12345678901234567890
+    upper = 12345678901234567890 + 5
+    32.times do
+      num = SecureRandom.random_number lower..upper
+      num.should.is_a?(Integer)
+      lower.should <= num
+      num.should <= upper
+    end
+  end
+
+  it "generates a random value in given (float) range limits" do
+    64.times do
+      num = SecureRandom.random_number 0.6..0.9
+      num.should.is_a?(Float)
+      0.6.should <= num
+      num.should <= 0.9
+    end
+  end
+
+  it "generates a random float number between 0.0 and 1.0 if argument is negative" do
+    num = SecureRandom.random_number(-10)
+    num.should.is_a?(Float)
+    0.0.should <= num
+    num.should < 1.0
+  end
+
+  it "generates a random float number between 0.0 and 1.0 if argument is negative float" do
+    num = SecureRandom.random_number(-11.1)
+    num.should.is_a?(Float)
+    0.0.should <= num
+    num.should < 1.0
+  end
+
+  it "generates different float numbers with subsequent invocations" do
+    # quick and dirty check, but good enough
+    values = []
+    256.times do
+      val = SecureRandom.random_number
+      # make sure the random values are not repeating
+      values.should_not.include?(val)
+      values << val
+    end
+  end
+
+  it "raises ArgumentError if the argument is non-numeric" do
+    -> {
+      SecureRandom.random_number(Object.new)
+    }.should.raise(ArgumentError)
+  end
+end