couchrest_model/spec/unit/typecast_spec.rb

522 lines
15 KiB
Ruby

# encoding: utf-8
require 'spec_helper'
describe "Type Casting" do
before(:each) do
@course = Course.new(:title => 'Relaxation')
end
describe "when value is nil" do
it "leaves the value unchanged" do
@course.title = nil
@course['title'].should == nil
end
end
describe "when type primitive is an Object" do
it "it should not cast given value" do
@course.participants = [{}, 'q', 1]
@course['participants'].should == [{}, 'q', 1]
end
it "should cast started_on to Date" do
@course.started_on = Date.today
@course['started_on'].should be_an_instance_of(Date)
end
end
describe "when type primitive is a String" do
it "keeps string value unchanged" do
value = "1.0"
@course.title = value
@course['title'].should equal(value)
end
it "it casts to string representation of the value" do
@course.title = 1.0
@course['title'].should eql("1.0")
end
end
describe 'when type primitive is a Float' do
it 'returns same value if a float' do
value = 24.0
@course.estimate = value
@course['estimate'].should equal(value)
end
it 'returns float representation of a zero string integer' do
@course.estimate = '0'
@course['estimate'].should eql(0.0)
end
it 'returns float representation of a positive string integer' do
@course.estimate = '24'
@course['estimate'].should eql(24.0)
end
it 'returns float representation of a negative string integer' do
@course.estimate = '-24'
@course['estimate'].should eql(-24.0)
end
it 'returns float representation of a zero string float' do
@course.estimate = '0.0'
@course['estimate'].should eql(0.0)
end
it 'returns float representation of a positive string float' do
@course.estimate = '24.35'
@course['estimate'].should eql(24.35)
end
it 'returns float representation of a negative string float' do
@course.estimate = '-24.35'
@course['estimate'].should eql(-24.35)
end
it 'returns float representation of a zero string float, with no leading digits' do
@course.estimate = '.0'
@course['estimate'].should eql(0.0)
end
it 'returns float representation of a positive string float, with no leading digits' do
@course.estimate = '.41'
@course['estimate'].should eql(0.41)
end
it 'returns float representation of a zero integer' do
@course.estimate = 0
@course['estimate'].should eql(0.0)
end
it 'returns float representation of a positive integer' do
@course.estimate = 24
@course['estimate'].should eql(24.0)
end
it 'returns float representation of a negative integer' do
@course.estimate = -24
@course['estimate'].should eql(-24.0)
end
it 'returns float representation of a zero decimal' do
@course.estimate = BigDecimal('0.0')
@course['estimate'].should eql(0.0)
end
it 'returns float representation of a positive decimal' do
@course.estimate = BigDecimal('24.35')
@course['estimate'].should eql(24.35)
end
it 'returns float representation of a negative decimal' do
@course.estimate = BigDecimal('-24.35')
@course['estimate'].should eql(-24.35)
end
it 'return float of a number with commas instead of points for decimals' do
@course.estimate = '23,35'
@course['estimate'].should eql(23.35)
end
it "should handle numbers with commas and points" do
@course.estimate = '1,234.00'
@course.estimate.should eql(1234.00)
end
it "should handle a mis-match of commas and points and maintain the last one" do
@course.estimate = "1,232.434.123,323"
@course.estimate.should eql(1232434123.323)
end
it "should handle numbers with whitespace" do
@course.estimate = " 24.35 "
@course.estimate.should eql(24.35)
end
[ Object.new, true, '00.0', '0.', '-.0', 'string' ].each do |value|
it "does not typecast non-numeric value #{value.inspect}" do
@course.estimate = value
@course['estimate'].should equal(value)
end
end
end
describe 'when type primitive is a Integer' do
it 'returns same value if an integer' do
value = 24
@course.hours = value
@course['hours'].should equal(value)
end
it 'returns integer representation of a zero string integer' do
@course.hours = '0'
@course['hours'].should eql(0)
end
it 'returns integer representation of a positive string integer' do
@course.hours = '24'
@course['hours'].should eql(24)
end
it 'returns integer representation of a negative string integer' do
@course.hours = '-24'
@course['hours'].should eql(-24)
end
it 'returns integer representation of a zero string float' do
@course.hours = '0.0'
@course['hours'].should eql(0)
end
it 'returns integer representation of a positive string float' do
@course.hours = '24.35'
@course['hours'].should eql(24)
end
it 'returns integer representation of a negative string float' do
@course.hours = '-24.35'
@course['hours'].should eql(-24)
end
it 'returns integer representation of a zero string float, with no leading digits' do
@course.hours = '.0'
@course['hours'].should eql(0)
end
it 'returns integer representation of a positive string float, with no leading digits' do
@course.hours = '.41'
@course['hours'].should eql(0)
end
it 'returns integer representation of a zero float' do
@course.hours = 0.0
@course['hours'].should eql(0)
end
it 'returns integer representation of a positive float' do
@course.hours = 24.35
@course['hours'].should eql(24)
end
it 'returns integer representation of a negative float' do
@course.hours = -24.35
@course['hours'].should eql(-24)
end
it 'returns integer representation of a zero decimal' do
@course.hours = '0.0'
@course['hours'].should eql(0)
end
it 'returns integer representation of a positive decimal' do
@course.hours = '24.35'
@course['hours'].should eql(24)
end
it 'returns integer representation of a negative decimal' do
@course.hours = '-24.35'
@course['hours'].should eql(-24)
end
it "should handle numbers with whitespace" do
@course.hours = " 24 "
@course['hours'].should eql(24)
end
[ Object.new, true, '00.0', '0.', '-.0', 'string' ].each do |value|
it "does not typecast non-numeric value #{value.inspect}" do
@course.hours = value
@course['hours'].should equal(value)
end
end
end
describe 'when type primitive is a BigDecimal' do
it 'returns same value if a decimal' do
value = BigDecimal('24.0')
@course.profit = value
@course['profit'].should equal(value)
end
it 'returns decimal representation of a zero string integer' do
@course.profit = '0'
@course['profit'].should eql(BigDecimal('0.0'))
end
it 'returns decimal representation of a positive string integer' do
@course.profit = '24'
@course['profit'].should eql(BigDecimal('24.0'))
end
it 'returns decimal representation of a negative string integer' do
@course.profit = '-24'
@course['profit'].should eql(BigDecimal('-24.0'))
end
it 'returns decimal representation of a zero string float' do
@course.profit = '0.0'
@course['profit'].should eql(BigDecimal('0.0'))
end
it 'returns decimal representation of a positive string float' do
@course.profit = '24.35'
@course['profit'].should eql(BigDecimal('24.35'))
end
it 'returns decimal representation of a negative string float' do
@course.profit = '-24.35'
@course['profit'].should eql(BigDecimal('-24.35'))
end
it 'returns decimal representation of a zero string float, with no leading digits' do
@course.profit = '.0'
@course['profit'].should eql(BigDecimal('0.0'))
end
it 'returns decimal representation of a positive string float, with no leading digits' do
@course.profit = '.41'
@course['profit'].should eql(BigDecimal('0.41'))
end
it 'returns decimal representation of a zero integer' do
@course.profit = 0
@course['profit'].should eql(BigDecimal('0.0'))
end
it 'returns decimal representation of a positive integer' do
@course.profit = 24
@course['profit'].should eql(BigDecimal('24.0'))
end
it 'returns decimal representation of a negative integer' do
@course.profit = -24
@course['profit'].should eql(BigDecimal('-24.0'))
end
it 'returns decimal representation of a zero float' do
@course.profit = 0.0
@course['profit'].should eql(BigDecimal('0.0'))
end
it 'returns decimal representation of a positive float' do
@course.profit = 24.35
@course['profit'].should eql(BigDecimal('24.35'))
end
it 'returns decimal representation of a negative float' do
@course.profit = -24.35
@course['profit'].should eql(BigDecimal('-24.35'))
end
it "should handle numbers with whitespace" do
@course.profit = " 24.35 "
@course['profit'].should eql(BigDecimal('24.35'))
end
[ Object.new, true, '00.0', '0.', '-.0', 'string' ].each do |value|
it "does not typecast non-numeric value #{value.inspect}" do
@course.profit = value
@course['profit'].should equal(value)
end
end
end
describe 'when type primitive is a DateTime' do
describe 'and value given as a hash with keys like :year, :month, etc' do
it 'builds a DateTime instance from hash values' do
@course.updated_at = {
:year => '2006',
:month => '11',
:day => '23',
:hour => '12',
:min => '0',
:sec => '0'
}
result = @course['updated_at']
result.should be_kind_of(DateTime)
result.year.should eql(2006)
result.month.should eql(11)
result.day.should eql(23)
result.hour.should eql(12)
result.min.should eql(0)
result.sec.should eql(0)
end
end
describe 'and value is a string' do
it 'parses the string' do
@course.updated_at = 'Dec, 2006'
@course['updated_at'].month.should == 12
end
end
it 'does not typecast non-datetime values' do
@course.updated_at = 'not-datetime'
@course['updated_at'].should eql('not-datetime')
end
end
describe 'when type primitive is a Date' do
describe 'and value given as a hash with keys like :year, :month, etc' do
it 'builds a Date instance from hash values' do
@course.started_on = {
:year => '2007',
:month => '3',
:day => '25'
}
result = @course['started_on']
result.should be_kind_of(Date)
result.year.should eql(2007)
result.month.should eql(3)
result.day.should eql(25)
end
end
describe 'and value is a string' do
it 'parses the string' do
@course.started_on = 'Dec 20th, 2006'
@course.started_on.month.should == 12
@course.started_on.day.should == 20
@course.started_on.year.should == 2006
end
end
it 'does not typecast non-date values' do
@course.started_on = 'not-date'
@course['started_on'].should eql('not-date')
end
end
describe 'when type primitive is a Time' do
describe 'and value given as a hash with keys like :year, :month, etc' do
it 'builds a Time instance from hash values' do
@course.ends_at = {
:year => '2006',
:month => '11',
:day => '23',
:hour => '12',
:min => '0',
:sec => '0'
}
result = @course['ends_at']
result.should be_kind_of(Time)
result.year.should eql(2006)
result.month.should eql(11)
result.day.should eql(23)
result.hour.should eql(12)
result.min.should eql(0)
result.sec.should eql(0)
end
end
describe 'and value is a string' do
it 'parses the string' do
t = Time.new(2011, 4, 1, 18, 50, 32, "+02:00")
@course.ends_at = t.strftime('%Y/%m/%d %H:%M:%S %z')
@course['ends_at'].year.should eql(t.year)
@course['ends_at'].month.should eql(t.month)
@course['ends_at'].day.should eql(t.day)
@course['ends_at'].hour.should eql(t.hour)
@course['ends_at'].min.should eql(t.min)
@course['ends_at'].sec.should eql(t.sec)
end
it 'parses the string without offset as UTC' do
t = Time.now.utc
@course.ends_at = t.strftime("%Y-%m-%d %H:%M:%S")
@course.ends_at.utc?.should be_true
@course['ends_at'].year.should eql(t.year)
@course['ends_at'].month.should eql(t.month)
@course['ends_at'].day.should eql(t.day)
@course['ends_at'].hour.should eql(t.hour)
@course['ends_at'].min.should eql(t.min)
@course['ends_at'].sec.should eql(t.sec)
end
end
it "converts a time value into utc" do
t = Time.new(2011, 4, 1, 18, 50, 32, "+02:00")
@course.ends_at = t
@course.ends_at.utc?.should be_true
@course.ends_at.to_i.should eql(Time.utc(2011, 4, 1, 16, 50, 32).to_i)
end
if RUBY_VERSION >= "1.9.1"
# In ruby 1.8.7 Time.parse will always return a value. D'OH
it 'does not typecast non-time values' do
@course.ends_at = 'not-time'
@course['ends_at'].should eql('not-time')
end
end
end
describe 'when type primitive is a Class' do
it 'returns same value if a class' do
value = Course
@course.klass = value
@course['klass'].should equal(value)
end
it 'returns the class if found' do
@course.klass = 'Course'
@course['klass'].should eql(Course)
end
it 'does not typecast non-class values' do
@course.klass = 'NoClass'
@course['klass'].should eql('NoClass')
end
end
describe 'when type primitive is a Boolean' do
[ true, 'true', 'TRUE', '1', 1, 't', 'T' ].each do |value|
it "returns true when value is #{value.inspect}" do
@course.active = value
@course['active'].should be_true
end
end
[ false, 'false', 'FALSE', '0', 0, 'f', 'F' ].each do |value|
it "returns false when value is #{value.inspect}" do
@course.active = value
@course['active'].should be_false
end
end
[ 'string', 2, 1.0, BigDecimal('1.0'), DateTime.now, Time.now, Date.today, Class, Object.new, ].each do |value|
it "does not typecast value #{value.inspect}" do
@course.active = value
@course['active'].should equal(value)
end
end
it "should respond to requests with ? modifier" do
@course.active = nil
@course.active?.should be_false
@course.active = false
@course.active?.should be_false
@course.active = true
@course.active?.should be_true
end
it "should respond to requests with ? modifier on TrueClass" do
@course.very_active = nil
@course.very_active?.should be_false
@course.very_active = false
@course.very_active?.should be_false
@course.very_active = true
@course.very_active?.should be_true
end
end
end