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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(Redis::CommandError)
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(Redis::CommandError)
end
it_should_behave_like 'a string-only command'
end
Version data entries
32 entries across 32 versions & 1 rubygems