# Copyright 2015 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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require 'spec_helper'
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TimeConsts = GRPC::Core::TimeConsts
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describe TimeConsts do
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before(:each) do
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@known_consts = [:ZERO, :INFINITE_FUTURE, :INFINITE_PAST].sort
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end
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it 'should have all the known types' do
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expect(TimeConsts.constants.collect.sort).to eq(@known_consts)
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end
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describe '#to_time' do
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it 'converts each constant to a Time' do
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m = TimeConsts
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m.constants.each do |c|
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expect(m.const_get(c).to_time).to be_a(Time)
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end
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end
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end
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end
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describe '#from_relative_time' do
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it 'cannot handle arbitrary objects' do
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expect { TimeConsts.from_relative_time(Object.new) }.to raise_error
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end
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it 'preserves TimeConsts' do
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m = TimeConsts
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m.constants.each do |c|
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const = m.const_get(c)
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expect(TimeConsts.from_relative_time(const)).to be(const)
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end
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end
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it 'converts 0 to TimeConsts::ZERO' do
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expect(TimeConsts.from_relative_time(0)).to eq(TimeConsts::ZERO)
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end
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it 'converts nil to TimeConsts::ZERO' do
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expect(TimeConsts.from_relative_time(nil)).to eq(TimeConsts::ZERO)
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end
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it 'converts negative values to TimeConsts::INFINITE_FUTURE' do
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[-1, -3.2, -1e6].each do |t|
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y = TimeConsts.from_relative_time(t)
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expect(y).to eq(TimeConsts::INFINITE_FUTURE)
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end
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end
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it 'converts a positive value to an absolute time' do
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epsilon = 1
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[1, 3.2, 1e6].each do |t|
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want = Time.now + t
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abs = TimeConsts.from_relative_time(t)
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expect(abs.to_f).to be_within(epsilon).of(want.to_f)
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end
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end
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end
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