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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe TimeZoneHelper, :aggregate_failures do
describe '#timezone_data' do
context 'with short format' do
subject(:timezone_data) { helper.timezone_data }
it 'matches schema' do
expect(timezone_data).not_to be_empty
timezone_data.each_with_index do |timezone_hash, i|
expect(timezone_hash.keys).to contain_exactly(
:identifier,
:name,
:offset
), "Failed at index #{i}"
end
end
it 'formats for display' do
tz = ActiveSupport::TimeZone.all[0]
expect(timezone_data[0]).to eq(
identifier: tz.tzinfo.identifier,
name: tz.name,
offset: tz.now.utc_offset
)
end
end
context 'with abbr format' do
subject(:timezone_data) { helper.timezone_data(format: :abbr) }
it 'matches schema' do
expect(timezone_data).not_to be_empty
timezone_data.each_with_index do |timezone_hash, i|
expect(timezone_hash.keys).to contain_exactly(
:identifier,
:abbr
), "Failed at index #{i}"
end
end
it 'formats for display' do
tz = ActiveSupport::TimeZone.all[0]
expect(timezone_data[0]).to eq(
identifier: tz.tzinfo.identifier,
abbr: tz.tzinfo.strftime('%Z')
)
end
end
context 'with full format' do
subject(:timezone_data) { helper.timezone_data(format: :full) }
it 'matches schema' do
expect(timezone_data).not_to be_empty
timezone_data.each_with_index do |timezone_hash, i|
expect(timezone_hash.keys).to contain_exactly(
:identifier,
:name,
:abbr,
:offset,
:formatted_offset
), "Failed at index #{i}"
end
end
it 'formats for display' do
tz = ActiveSupport::TimeZone.all[0]
expect(timezone_data[0]).to eq(
identifier: tz.tzinfo.identifier,
name: tz.name,
abbr: tz.tzinfo.strftime('%Z'),
offset: tz.now.utc_offset,
formatted_offset: tz.now.formatted_offset
)
end
end
context 'with unknown format' do
subject(:timezone_data) { helper.timezone_data(format: :unknown) }
it 'raises an exception' do
expect { timezone_data }.to raise_error ArgumentError, 'Invalid format :unknown. Valid formats are :short, :abbr, :full.'
end
end
end
describe '#local_time' do
let_it_be(:timezone) { 'America/Los_Angeles' }
before do
travel_to Time.find_zone(timezone).local(2021, 7, 20, 15, 30, 45)
end
context 'when timezone is `nil`' do
it 'returns `nil`' do
expect(helper.local_time(nil)).to eq(nil)
end
end
context 'when timezone is blank' do
it 'returns `nil`' do
expect(helper.local_time('')).to eq(nil)
end
end
context 'when a valid timezone is passed' do
it 'returns local time' do
expect(helper.local_time(timezone)).to eq('3:30 PM')
end
end
context 'when an invalid timezone is passed' do
it 'returns local time using the configured default timezone (UTC in this case)' do
expect(helper.local_time('Foo/Bar')).to eq('10:30 PM')
end
end
end
describe '#local_timezone_instance' do
let_it_be(:timezone) { 'UTC' }
before do
travel_to Time.find_zone(timezone).local(2021, 7, 20, 15, 30, 45)
end
context 'when timezone is `nil`' do
it 'returns the system timezone instance' do
expect(helper.local_timezone_instance(nil).name).to eq(timezone)
end
end
context 'when timezone is blank' do
it 'returns the system timezone instance' do
expect(helper.local_timezone_instance('').name).to eq(timezone)
end
end
context 'when a valid timezone is passed' do
it 'returns the local time instance' do
expect(helper.local_timezone_instance('America/Los_Angeles').name).to eq('America/Los_Angeles')
end
end
context 'when an invalid timezone is passed' do
it 'returns the system timezone instance' do
expect(helper.local_timezone_instance('Foo/Bar').name).to eq(timezone)
end
end
end
end
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