Contents

require 'spec_helper'

describe '#incrbyfloat(key, increment)' do
  before { @key = 'mock-redis-test:65374' }

  it "returns the value after the increment" do
    @redises.set(@key, 2.0)
    @redises.incrbyfloat(@key, 2.1).should be_within(0.0001).of(4.1)
  end

  it "treats a missing key like 0" do
    @redises.incrbyfloat(@key, 1.2).should be_within(0.0001).of(1.2)
  end

  it "increments negative numbers" do
    @redises.set(@key, -10.4)
    @redises.incrbyfloat(@key, 2.3).should be_within(0.0001).of(-8.1)
  end

  it "works multiple times" do
    @redises.incrbyfloat(@key, 2.1).should be_within(0.0001).of(2.1)
    @redises.incrbyfloat(@key, 2.2).should be_within(0.0001).of(4.3)
    @redises.incrbyfloat(@key, 2.3).should be_within(0.0001).of(6.6)
  end

  it "accepts an float-ish string" do
    @redises.incrbyfloat(@key, "2.2").should be_within(0.0001).of(2.2)
  end

  it "raises an error if the value does not look like an float" do
    @redises.set(@key, "one.two")
    lambda do
      @redises.incrbyfloat(@key, 1)
    end.should raise_error(RuntimeError)
  end

  it "raises an error if the delta does not look like an float" do
    lambda do
      @redises.incrbyfloat(@key, "foobar.baz")
    end.should raise_error(RuntimeError)
  end

  it_should_behave_like "a string-only command"
end

Version data entries

23 entries across 23 versions & 1 rubygems

Version	Path
mock_redis-0.6.0	spec/commands/incrbyfloat_spec.rb
mock_redis-0.5.5	spec/commands/incrbyfloat_spec.rb
mock_redis-0.5.4	spec/commands/incrbyfloat_spec.rb