hashie/spec/hashie/mash_spec.rb

1109 lines
35 KiB
Ruby

require 'spec_helper'
describe Hashie::Mash do
subject { Hashie::Mash.new }
include_context 'with a logger'
it 'inherits from Hash' do
expect(subject.is_a?(Hash)).to be_truthy
end
it 'sets hash values through method= calls' do
subject.test = 'abc'
expect(subject['test']).to eq 'abc'
end
it 'retrieves set values through method calls' do
subject['test'] = 'abc'
expect(subject.test).to eq 'abc'
end
it 'retrieves set values through blocks' do
subject['test'] = 'abc'
value = nil
subject.[]('test') { |v| value = v }
expect(value).to eq 'abc'
end
it 'retrieves set values through blocks with method calls' do
subject['test'] = 'abc'
value = nil
subject.test { |v| value = v }
expect(value).to eq 'abc'
end
it 'tests for already set values when passed a ? method' do
expect(subject.test?).to be_falsy
subject.test = 'abc'
expect(subject.test?).to be_truthy
end
it 'returns false on a ? method if a value has been set to nil or false' do
subject.test = nil
expect(subject).not_to be_test
subject.test = false
expect(subject).not_to be_test
end
it 'makes all [] and []= into strings for consistency' do
subject['abc'] = 123
expect(subject.key?('abc')).to be_truthy
expect(subject['abc']).to eq 123
end
it 'has a to_s that is identical to its inspect' do
subject.abc = 123
expect(subject.to_s).to eq subject.inspect
end
it 'returns nil instead of raising an error for attribute-esque method calls' do
expect(subject.abc).to be_nil
end
it 'returns the default value if set like Hash' do
subject.default = 123
expect(subject.abc).to eq 123
end
it 'gracefully handles being accessed with arguments' do
expect(subject.abc('foobar')).to eq nil
subject.abc = 123
expect(subject.abc('foobar')).to eq 123
end
# Added due to downstream gems assuming indifferent access to be true for Mash
# When this is not, bump major version so that downstream gems can target
# correct version and fix accordingly.
# See https://github.com/hashie/hashie/pull/197
it 'maintains indifferent access when nested' do
subject[:a] = { b: 'c' }
expect(subject[:a][:b]).to eq 'c'
expect(subject[:a]['b']).to eq 'c'
end
it 'returns a Hashie::Mash when passed a bang method to a non-existenct key' do
expect(subject.abc!.is_a?(Hashie::Mash)).to be_truthy
end
it 'returns the existing value when passed a bang method for an existing key' do
subject.name = 'Bob'
expect(subject.name!).to eq 'Bob'
end
it 'returns a Hashie::Mash when passed an under bang method to a non-existenct key' do
expect(subject.abc_.is_a?(Hashie::Mash)).to be_truthy
end
it 'returns the existing value when passed an under bang method for an existing key' do
subject.name = 'Bob'
expect(subject.name_).to eq 'Bob'
end
it '#initializing_reader returns a Hashie::Mash when passed a non-existent key' do
expect(subject.initializing_reader(:abc).is_a?(Hashie::Mash)).to be_truthy
end
it 'allows for multi-level assignment through bang methods' do
subject.author!.name = 'Michael Bleigh'
expect(subject.author).to eq Hashie::Mash.new(name: 'Michael Bleigh')
subject.author!.website!.url = 'http://www.mbleigh.com/'
expect(subject.author.website).to eq Hashie::Mash.new(url: 'http://www.mbleigh.com/')
end
it 'allows for multi-level under bang testing' do
expect(subject.author_.website_.url).to be_nil
expect(subject.author_.website_.url?).to eq false
expect(subject.author).to be_nil
end
it 'does not call super if id is not a key' do
expect(subject.id).to eq nil
end
it 'returns the value if id is a key' do
subject.id = 'Steve'
expect(subject.id).to eq 'Steve'
end
it 'does not call super if type is not a key' do
expect(subject.type).to eq nil
end
it 'returns the value if type is a key' do
subject.type = 'Steve'
expect(subject.type).to eq 'Steve'
end
include_context 'with a logger' do
it 'logs a warning when overriding built-in methods' do
Hashie::Mash.new('trust' => { 'two' => 2 })
expect(logger_output).to match('Hashie::Mash#trust')
end
it 'can set keys more than once and does not warn when doing so' do
mash = Hashie::Mash.new
mash[:test_key] = 'Test value'
expect { mash[:test_key] = 'A new value' }.not_to raise_error
expect(logger_output).to be_empty
end
it 'does not write to the logger when warnings are disabled' do
mash_class = Class.new(Hashie::Mash) do
disable_warnings
end
mash_class.new('trust' => { 'two' => 2 })
expect(logger_output).to be_empty
end
it 'does not write to the logger when setting most affixed keys' do
underbang = Hashie::Mash.new('foo_' => 'foo')
bang = Hashie::Mash.new('foo!' => 'foo')
query = Hashie::Mash.new('foo?' => 'foo')
expect(logger_output).to be_empty
expect(underbang.foo_).to eq 'foo'
expect(bang.foo!).to eq 'foo'
expect(query.foo?).to eq 'foo'
end
it 'warns when setting a key that looks like a setter' do
setter = Hashie::Mash.new('foo=' => 'foo')
expect(logger_output).to match 'Hashie::Mash#foo='
expect('setter.foo=').not_to parse_as_valid_ruby
setter.foo = 'bar'
expect(setter.to_h).to eq 'foo=' => 'foo'
end
it 'cannot disable logging on the base Mash' do
expected_error = Hashie::Extensions::KeyConflictWarning::CannotDisableMashWarnings
expect { Hashie::Mash.disable_warnings }.to raise_error(expected_error)
end
it 'carries over the disable for warnings on grandchild classes' do
child_class = Class.new(Hashie::Mash) do
disable_warnings
end
grandchild_class = Class.new(child_class)
grandchild_class.new('trust' => { 'two' => 2 })
expect(logger_output).to be_empty
end
it 'writes to logger when a key is overridden that is not ignored' do
mash_class = Class.new(Hashie::Mash) do
disable_warnings :merge
end
mash_class.new('address' => { 'zip' => '90210' })
expect(logger_output).not_to be_empty
end
it 'does not write to logger when a key is overridden that is ignored' do
mash_class = Class.new(Hashie::Mash) do
disable_warnings :zip
end
mash_class.new('address' => { 'zip' => '90210' })
expect(logger_output).to be_empty
end
it 'carries over the ignored warnings list for warnings on grandchild classes' do
child_class = Class.new(Hashie::Mash) do
disable_warnings :zip, :merge
end
grandchild_class = Class.new(child_class)
grandchild_class.new('address' => { 'zip' => '90210' }, 'merge' => true)
expect(grandchild_class.disabled_warnings).to eq(%i[zip merge])
expect(logger_output).to be_empty
end
context 'multiple disable_warnings calls' do
context 'calling disable_warnings multiple times with parameters' do
it 'appends each new parameter to the ignore list' do
child_class = Class.new(Hashie::Mash) do
disable_warnings :zip
disable_warnings :merge
disable_warnings :cycle
end
expect(child_class.disabled_warnings).to eq(%i[zip merge cycle])
end
end
context 'calling disable_warnings without keys after calling with keys' do
it 'uses the last call to determine the ignore list' do
child_class = Class.new(Hashie::Mash) do
disable_warnings :zip
disable_warnings
end
child_class.new('address' => { 'zip' => '90210' }, 'merge' => true, 'cycle' => 'bi')
expect(child_class.disabled_warnings).to eq([])
expect(logger_output).to be_empty
end
end
context 'calling disable_parameters with keys after calling without keys' do
it 'only ignores logging for ignored methods' do
child_class = Class.new(Hashie::Mash) do
disable_warnings
disable_warnings :zip
end
child_class.new('address' => { 'zip' => '90210' }, 'merge' => true)
expect(logger_output).to match(/#{child_class}#merge/)
expect(logger_output).not_to match(/#{child_class}#zip/)
end
end
end
end
context 'updating' do
subject do
described_class.new(
first_name: 'Michael',
last_name: 'Bleigh',
details: {
email: 'michael@asf.com',
address: 'Nowhere road'
}
)
end
describe '#deep_update' do
it 'recursively Hashie::Mash Hashie::Mashes and hashes together' do
subject.deep_update(details: { email: 'michael@intridea.com', city: 'Imagineton' })
expect(subject.first_name).to eq 'Michael'
expect(subject.details.email).to eq 'michael@intridea.com'
expect(subject.details.address).to eq 'Nowhere road'
expect(subject.details.city).to eq 'Imagineton'
end
it 'converts values only once' do
class ConvertedMash < Hashie::Mash
end
rhs = ConvertedMash.new(email: 'foo@bar.com')
expect(subject).to receive(:convert_value).exactly(1).times
subject.deep_update(rhs)
end
it 'makes #update deep by default' do
expect(subject.update(details: { address: 'Fake street' })).to eql(subject)
expect(subject.details.address).to eq 'Fake street'
expect(subject.details.email).to eq 'michael@asf.com'
end
it 'clones before a #deep_merge' do
duped = subject.deep_merge(details: { address: 'Fake street' })
expect(duped).not_to eql(subject)
expect(duped.details.address).to eq 'Fake street'
expect(subject.details.address).to eq 'Nowhere road'
expect(duped.details.email).to eq 'michael@asf.com'
end
it 'default #merge is deep' do
duped = subject.merge(details: { email: 'michael@intridea.com' })
expect(duped).not_to eql(subject)
expect(duped.details.email).to eq 'michael@intridea.com'
expect(duped.details.address).to eq 'Nowhere road'
end
# http://www.ruby-doc.org/core-1.9.3/Hash.html#method-i-update
it 'accepts a block' do
duped = subject.merge(details: { address: 'Pasadena CA' }) do |_, oldv, newv|
[oldv, newv].join(', ')
end
expect(duped.details.address).to eq 'Nowhere road, Pasadena CA'
end
it 'copies values for non-duplicate keys when a block is supplied' do
m_hash = { details: { address: 'Pasadena CA', state: 'West Thoughtleby' } }
duped = subject.merge(m_hash) { |_, oldv, _| oldv }
expect(duped.details.address).to eq 'Nowhere road'
expect(duped.details.state).to eq 'West Thoughtleby'
end
it 'does not raise an exception when default_proc raises an error' do
hash = described_class.new(a: 1) { |_k, _v| raise('Should not be raise I') }
other_has = described_class.new(a: 2, b: 2) { |_k, _v| raise('Should not be raise II') }
expected_hash = described_class.new(a: 2, b: 2)
res = hash.merge(other_has)
expect(res).to eq(expected_hash)
end
end
describe 'shallow update' do
it 'shallowly Hashie::Mash Hashie::Mashes and hashes together' do
expect(subject.shallow_update(details: { email: 'michael@intridea.com',
city: 'Imagineton' })).to eql(subject)
expect(subject.first_name).to eq 'Michael'
expect(subject.details.email).to eq 'michael@intridea.com'
expect(subject.details.address).to be_nil
expect(subject.details.city).to eq 'Imagineton'
end
it 'clones before a #regular_merge' do
duped = subject.shallow_merge(details: { address: 'Fake street' })
expect(duped).not_to eql(subject)
end
it 'default #merge is shallow' do
duped = subject.shallow_merge(details: { address: 'Fake street' })
expect(duped.details.address).to eq 'Fake street'
expect(subject.details.address).to eq 'Nowhere road'
expect(duped.details.email).to be_nil
end
end
describe '#replace' do
before do
subject.replace(
middle_name: 'Cain',
details: { city: 'Imagination' }
)
end
it 'returns self' do
expect(subject.replace(foo: 'bar').to_hash).to eq('foo' => 'bar')
end
it 'sets all specified keys to their corresponding values' do
expect(subject.middle_name?).to be_truthy
expect(subject.details?).to be_truthy
expect(subject.middle_name).to eq 'Cain'
expect(subject.details.city?).to be_truthy
expect(subject.details.city).to eq 'Imagination'
end
it 'leaves only specified keys' do
expect(subject.keys.sort).to eq %w[details middle_name]
expect(subject.first_name?).to be_falsy
expect(subject).not_to respond_to(:first_name)
expect(subject.last_name?).to be_falsy
expect(subject).not_to respond_to(:last_name)
end
end
describe 'delete' do
it 'deletes with String key' do
subject.delete('details')
expect(subject.details).to be_nil
expect(subject).not_to be_respond_to :details
end
it 'deletes with Symbol key' do
subject.delete(:details)
expect(subject.details).to be_nil
expect(subject).not_to be_respond_to :details
end
end
end
it 'converts hash assignments into Hashie::Mashes' do
subject.details = { email: 'randy@asf.com', address: { state: 'TX' } }
expect(subject.details.email).to eq 'randy@asf.com'
expect(subject.details.address.state).to eq 'TX'
end
it 'does not convert the type of Hashie::Mashes childs to Hashie::Mash' do
class MyMash < Hashie::Mash
end
record = MyMash.new
record.son = MyMash.new
expect(record.son.class).to eq MyMash
end
it 'does not change the class of Mashes when converted' do
class SubMash < Hashie::Mash
end
record = Hashie::Mash.new
son = SubMash.new
record['submash'] = son
expect(record['submash']).to be_kind_of(SubMash)
end
it 'respects the class when passed a bang method for a non-existent key' do
record = Hashie::Mash.new
expect(record.non_existent!).to be_kind_of(Hashie::Mash)
class SubMash < Hashie::Mash
end
son = SubMash.new
expect(son.non_existent!).to be_kind_of(SubMash)
end
it 'respects the class when passed an under bang method for a non-existent key' do
record = Hashie::Mash.new
expect(record.non_existent_).to be_kind_of(Hashie::Mash)
class SubMash < Hashie::Mash
end
son = SubMash.new
expect(son.non_existent_).to be_kind_of(SubMash)
end
it 'respects the class when converting the value' do
record = Hashie::Mash.new
record.details = Hashie::Mash.new(email: 'randy@asf.com')
expect(record.details).to be_kind_of(Hashie::Mash)
end
it 'respects another subclass when converting the value' do
record = Hashie::Mash.new
class SubMash < Hashie::Mash
end
son = SubMash.new(email: 'foo@bar.com')
record.details = son
expect(record.details).to be_kind_of(SubMash)
end
describe '#respond_to?' do
subject do
Hashie::Mash.new(abc: 'def')
end
it 'responds to a normal method' do
expect(subject).to be_respond_to(:key?)
end
it 'responds to a set key' do
expect(subject).to be_respond_to(:abc)
expect(subject.method(:abc)).to_not be_nil
end
it 'responds to a set key with a suffix' do
%w[= ? ! _].each do |suffix|
expect(subject).to be_respond_to(:"abc#{suffix}")
end
end
it 'is able to access the suffixed key as a method' do
%w[= ? ! _].each do |suffix|
expect(subject.method(:"abc#{suffix}")).to_not be_nil
end
end
it 'responds to an unknown key with a suffix' do
%w[= ? ! _].each do |suffix|
expect(subject).to be_respond_to(:"xyz#{suffix}")
end
end
it 'is able to access an unknown suffixed key as a method' do
# See https://github.com/intridea/hashie/pull/285 for more information
pending_for(engine: 'ruby', versions: %w[2.2.0 2.2.1 2.2.2])
%w[= ? ! _].each do |suffix|
expect(subject.method(:"xyz#{suffix}")).to_not be_nil
end
end
it 'does not respond to an unknown key without a suffix' do
expect(subject).not_to be_respond_to(:xyz)
expect { subject.method(:xyz) }.to raise_error(NameError)
end
end
context '#initialize' do
it 'converts an existing hash to a Hashie::Mash' do
converted = Hashie::Mash.new(abc: 123, name: 'Bob')
expect(converted.abc).to eq 123
expect(converted.name).to eq 'Bob'
end
it 'converts hashes recursively into Hashie::Mashes' do
converted = Hashie::Mash.new(a: { b: 1, c: { d: 23 } })
expect(converted.a.is_a?(Hashie::Mash)).to be_truthy
expect(converted.a.b).to eq 1
expect(converted.a.c.d).to eq 23
end
it 'converts hashes in arrays into Hashie::Mashes' do
converted = Hashie::Mash.new(a: [{ b: 12 }, 23])
expect(converted.a.first.b).to eq 12
expect(converted.a.last).to eq 23
end
it 'converts an existing Hashie::Mash into a Hashie::Mash' do
initial = Hashie::Mash.new(name: 'randy', address: { state: 'TX' })
copy = Hashie::Mash.new(initial)
expect(initial.name).to eq copy.name
expect(initial.__id__).not_to eq copy.__id__
expect(copy.address.state).to eq 'TX'
copy.address.state = 'MI'
expect(initial.address.state).to eq 'TX'
expect(copy.address.__id__).not_to eq initial.address.__id__
end
it 'accepts a default block' do
initial = Hashie::Mash.new { |h, i| h[i] = [] }
expect(initial.default_proc).not_to be_nil
expect(initial.default).to be_nil
expect(initial.test).to eq []
expect(initial.test?).to be_truthy
end
it 'allows propagation of a default block' do
h = Hashie::Mash.new { |mash, key| mash[key] = mash.class.new(&mash.default_proc) }
expect { h[:x][:y][:z] = :xyz }.not_to raise_error
expect(h.x.y.z).to eq(:xyz)
expect(h[:x][:y][:z]).to eq(:xyz)
end
it 'allows assignment of an empty array in a default block' do
initial = Hashie::Mash.new { |h, k| h[k] = [] }
initial.hello << 100
expect(initial.hello).to eq [100]
initial['hi'] << 100
expect(initial['hi']).to eq [100]
end
it 'allows assignment of a non-empty array in a default block' do
initial = Hashie::Mash.new { |h, k| h[k] = [100] }
initial.hello << 200
expect(initial.hello).to eq [100, 200]
initial['hi'] << 200
expect(initial['hi']).to eq [100, 200]
end
it 'allows assignment of an empty hash in a default block' do
initial = Hashie::Mash.new { |h, k| h[k] = {} }
initial.hello[:a] = 100
expect(initial.hello).to eq Hashie::Mash.new(a: 100)
initial[:hi][:a] = 100
expect(initial[:hi]).to eq Hashie::Mash.new(a: 100)
end
it 'allows assignment of a non-empty hash in a default block' do
initial = Hashie::Mash.new { |h, k| h[k] = { a: 100 } }
initial.hello[:b] = 200
expect(initial.hello).to eq Hashie::Mash.new(a: 100, b: 200)
initial[:hi][:b] = 200
expect(initial[:hi]).to eq Hashie::Mash.new(a: 100, b: 200)
end
it 'converts Hashie::Mashes within Arrays back to Hashes' do
initial_hash = { 'a' => [{ 'b' => 12, 'c' => ['d' => 50, 'e' => 51] }, 23] }
converted = Hashie::Mash.new(initial_hash)
expect(converted.to_hash['a'].first.is_a?(Hashie::Mash)).to be_falsy
expect(converted.to_hash['a'].first.is_a?(Hash)).to be_truthy
expect(converted.to_hash['a'].first['c'].first.is_a?(Hashie::Mash)).to be_falsy
end
it 'only stringifies keys which can be converted to symbols' do
initial_hash = { 1 => 'a', ['b'] => 2, 'c' => 3, d: 4 }
converted = Hashie::Mash.new(initial_hash)
expect(converted).to eq(1 => 'a', ['b'] => 2, 'c' => 3, 'd' => 4)
end
it 'preserves keys which cannot be converted to symbols' do
initial_hash = { 1 => 'a', '1' => 'b', :'1' => 'c' }
converted = Hashie::Mash.new(initial_hash)
expect(converted).to eq(1 => 'a', '1' => 'c')
end
end
describe '#fetch' do
let(:hash) { { one: 1, other: false } }
let(:mash) { Hashie::Mash.new(hash) }
context 'when key exists' do
it 'returns the value' do
expect(mash.fetch(:one)).to eql(1)
end
it 'returns the value even if the value is falsy' do
expect(mash.fetch(:other)).to eql(false)
end
context 'when key has other than original but acceptable type' do
it 'returns the value' do
expect(mash.fetch('one')).to eql(1)
end
end
end
context 'when key does not exist' do
it 'raises KeyError' do
expect { mash.fetch(:two) }.to raise_error(KeyError)
end
context 'with default value given' do
it 'returns default value' do
expect(mash.fetch(:two, 8)).to eql(8)
end
it 'returns default value even if it is falsy' do
expect(mash.fetch(:two, false)).to eql(false)
end
end
context 'with block given' do
it 'returns default value' do
expect(mash.fetch(:two) do
'block default value'
end).to eql('block default value')
end
end
end
end
describe '#to_hash' do
let(:hash) { { 'outer' => { 'inner' => 42 }, 'testing' => [1, 2, 3] } }
let(:mash) { Hashie::Mash.new(hash) }
it 'returns a standard Hash' do
expect(mash.to_hash).to be_a(::Hash)
end
it 'includes all keys' do
expect(mash.to_hash.keys).to eql(%w[outer testing])
end
it 'converts keys to symbols when symbolize_keys option is true' do
expect(mash.to_hash(symbolize_keys: true).keys).to include(:outer)
expect(mash.to_hash(symbolize_keys: true).keys).not_to include('outer')
end
it 'leaves keys as strings when symbolize_keys option is false' do
expect(mash.to_hash(symbolize_keys: false).keys).to include('outer')
expect(mash.to_hash(symbolize_keys: false).keys).not_to include(:outer)
end
it 'symbolizes keys recursively' do
expect(mash.to_hash(symbolize_keys: true)[:outer].keys).to include(:inner)
expect(mash.to_hash(symbolize_keys: true)[:outer].keys).not_to include('inner')
end
end
describe '#stringify_keys' do
it 'turns all keys into strings recursively' do
hash = Hashie::Mash[:a => 'hey', 123 => { 345 => 'hey' }]
hash.stringify_keys!
expect(hash).to eq Hashie::Hash['a' => 'hey', '123' => { '345' => 'hey' }]
end
end
describe '#values_at' do
let(:hash) { { 'key_one' => 1, :key_two => 2 } }
let(:mash) { Hashie::Mash.new(hash) }
context 'when the original type is given' do
it 'returns the values' do
expect(mash.values_at('key_one', :key_two)).to eq([1, 2])
end
end
context 'when a different, but acceptable type is given' do
it 'returns the values' do
expect(mash.values_at(:key_one, 'key_two')).to eq([1, 2])
end
end
context 'when a key is given that is not in the Mash' do
it 'returns nil for that value' do
expect(mash.values_at('key_one', :key_three)).to eq([1, nil])
end
end
end
describe '.load(filename, options = {})' do
let(:config) do
{
'production' => {
'foo' => 'production_foo'
}
}
end
let(:path) { 'database.yml' }
let(:parser) { double(:parser) }
subject { described_class.load(path, parser: parser) }
before do |ex|
unless ex.metadata == :test_cache
described_class.instance_variable_set('@_mashes', nil) # clean the cached mashes
end
end
context 'if the file exists' do
before do
expect(File).to receive(:file?).with(path).and_return(true)
expect(parser).to receive(:perform).with(path, {}).and_return(config)
end
it { is_expected.to be_a(Hashie::Mash) }
it 'return a Mash from a file' do
expect(subject.production).not_to be_nil
expect(subject.production.keys).to eq config['production'].keys
expect(subject.production.foo).to eq config['production']['foo']
end
it 'freeze the attribtues' do
expect { subject.production = {} }.to raise_exception(RuntimeError, /can't modify frozen/)
end
end
context 'if the fils does not exists' do
before do
expect(File).to receive(:file?).with(path).and_return(false)
end
it 'raise an ArgumentError' do
expect { subject }.to raise_exception(ArgumentError)
end
end
context 'if the file is passed as Pathname' do
require 'pathname'
let(:path) { Pathname.new('database.yml') }
before do
expect(File).to receive(:file?).with(path).and_return(true)
expect(parser).to receive(:perform).with(path, {}).and_return(config)
end
it 'return a Mash from a file' do
expect(subject.production.foo).to eq config['production']['foo']
end
end
describe 'results are cached' do
let(:parser) { double(:parser) }
subject { described_class.load(path, parser: parser) }
before do
expect(File).to receive(:file?).with(path).and_return(true)
expect(File).to receive(:file?).with("#{path}+1").and_return(true)
expect(parser).to receive(:perform).once.with(path, {}).and_return(config)
expect(parser).to receive(:perform).once.with("#{path}+1", {}).and_return(config)
end
it 'cache the loaded yml file', :test_cache do
2.times do
expect(subject).to be_a(described_class)
expect(described_class.load("#{path}+1", parser: parser)).to be_a(described_class)
end
expect(subject.object_id).to eq subject.object_id
end
end
context 'when the file has aliases in it' do
it 'can use the aliases and does not raise an error' do
mash = Hashie::Mash.load('spec/fixtures/yaml_with_aliases.yml')
expect(mash.company_a.accounts.admin.password).to eq('secret')
end
it 'can override the value of aliases' do
expect do
Hashie::Mash.load('spec/fixtures/yaml_with_aliases.yml', aliases: false)
end.to raise_error Psych::BadAlias, /base_accounts/
end
end
context 'when the file has symbols' do
it 'can override the value of permitted_classes' do
mash = Hashie::Mash.load('spec/fixtures/yaml_with_symbols.yml', permitted_classes: [Symbol])
expect(mash.user_icon.width).to eq(200)
end
it 'uses defaults for permitted_classes' do
expect do
Hashie::Mash.load('spec/fixtures/yaml_with_symbols.yml')
end.to raise_error Psych::DisallowedClass, /Symbol/
end
it 'can override the value of permitted_symbols' do
mash = Hashie::Mash.load('spec/fixtures/yaml_with_symbols.yml',
permitted_classes: [Symbol],
permitted_symbols: %i[
user_icon
width
height
])
expect(mash.user_icon.width).to eq(200)
end
it 'raises an error on insufficient permitted_symbols' do
expect do
Hashie::Mash.load('spec/fixtures/yaml_with_symbols.yml',
permitted_classes: [Symbol],
permitted_symbols: %i[
user_icon
width
])
end.to raise_error Psych::DisallowedClass, /Symbol/
end
end
end
describe '#to_module(mash_method_name)' do
let(:mash) { described_class.new }
subject { Class.new.extend mash.to_module }
it 'defines a settings method on the klass class that extends the module' do
expect(subject).to respond_to(:settings)
expect(subject.settings).to eq mash
end
context 'when a settings_method_name is set' do
let(:mash_method_name) { 'config' }
subject { Class.new.extend mash.to_module(mash_method_name) }
it 'defines a settings method on the klass class that extends the module' do
expect(subject).to respond_to(mash_method_name.to_sym)
expect(subject.send(mash_method_name.to_sym)).to eq mash
end
end
end
describe '#reverse_merge' do
subject { described_class.new(a: 1, b: 2) }
it 'unifies strings and symbols' do
expect(subject.reverse_merge(a: 2).length).to eq 2
expect(subject.reverse_merge('a' => 2).length).to eq 2
end
it 'does not overwrite values' do
expect(subject.reverse_merge(a: 5).a).to eq subject.a
end
context 'when using with subclass' do
let(:subclass) { Class.new(Hashie::Mash) }
subject { subclass.new(a: 1) }
it 'creates an instance of subclass' do
expect(subject.reverse_merge(a: 5)).to be_kind_of(subclass)
end
end
end
describe '#invert' do
subject(:mash) { described_class.new(a: 'apple', b: 4) }
it 'returns a Hashie::Mash' do
expect(mash.invert).to be_kind_of(described_class)
end
it 'returns a mash with the keys and values inverted' do
expect(mash.invert).to eq('apple' => 'a', 4 => 'b')
end
context 'when using with subclass' do
let(:subclass) { Class.new(Hashie::Mash) }
subject(:sub_mash) { subclass.new(a: 1, b: nil) }
it 'creates an instance of subclass' do
expect(sub_mash.invert).to be_kind_of(subclass)
end
end
end
describe '#reject' do
subject(:mash) { described_class.new(a: 1, b: nil) }
it 'returns a Hashie::Mash' do
expect(mash.reject { |_k, v| v.nil? }).to be_kind_of(described_class)
end
it 'rejects keys for which the block returns true' do
expect(mash.reject { |_k, v| v.nil? }).to eq('a' => 1)
end
context 'when using with subclass' do
let(:subclass) { Class.new(Hashie::Mash) }
subject(:sub_mash) { subclass.new(a: 1, b: nil) }
it 'creates an instance of subclass' do
expect(sub_mash.reject { |_k, v| v.nil? }).to be_kind_of(subclass)
end
end
end
describe '#select' do
subject(:mash) { described_class.new(a: 'apple', b: 4) }
it 'returns a Hashie::Mash' do
expect(mash.select { |_k, v| v.is_a? String }).to be_kind_of(described_class)
end
it 'selects keys for which the block returns true' do
expect(mash.select { |_k, v| v.is_a? String }).to eq('a' => 'apple')
end
context 'when using with subclass' do
let(:subclass) { Class.new(Hashie::Mash) }
subject(:sub_mash) { subclass.new(a: 1, b: nil) }
it 'creates an instance of subclass' do
expect(sub_mash.select { |_k, v| v.is_a? String }).to be_kind_of(subclass)
end
end
end
describe '.quiet' do
it 'returns a subclass of the calling class' do
expect(Hashie::Mash.quiet.new).to be_a(Hashie::Mash)
end
it 'memoizes and returns classes' do
call_one = Hashie::Mash.quiet
call_two = Hashie::Mash.quiet
expect(Hashie::Mash.instance_variable_get('@memoized_classes').count).to eq(1)
expect(call_one).to eq(call_two)
end
end
describe '#dig' do
subject { described_class.new(a: { b: 1 }) }
it 'accepts both string and symbol as key' do
expect(subject.dig(:a, :b)).to eq(1)
expect(subject.dig('a', 'b')).to eq(1)
end
context 'when the Mash wraps a Hashie::Array' do
it 'handles digging into an array' do
mash = described_class.new(alphabet: { first_three: Hashie::Array['a', 'b', 'c'] })
expect(mash.dig(:alphabet, :first_three, 0)).to eq 'a'
end
end
end
describe '#transform_values' do
subject(:mash) { described_class.new(a: 1) }
it 'returns a Hashie::Mash' do
expect(mash.transform_values(&:to_s)).to be_kind_of(described_class)
end
it 'transforms the value' do
expect(mash.transform_values(&:to_s).a).to eql('1')
end
context 'when using with subclass' do
let(:subclass) { Class.new(Hashie::Mash) }
subject(:sub_mash) { subclass.new(a: 1).transform_values { |a| a + 2 } }
it 'creates an instance of subclass' do
expect(sub_mash).to be_kind_of(subclass)
end
end
describe '#compact' do
subject(:mash) { described_class.new(a: 1, b: nil) }
it 'returns a Hashie::Mash' do
expect(mash.compact).to be_kind_of(described_class)
end
it 'removes keys with nil values' do
expect(mash.compact).to eq('a' => 1)
end
context 'when using with subclass' do
let(:subclass) { Class.new(Hashie::Mash) }
subject(:sub_mash) { subclass.new(a: 1, b: nil) }
it 'creates an instance of subclass' do
expect(sub_mash.compact).to be_kind_of(subclass)
end
end
end
end
with_minimum_ruby('2.5.0') do
describe '#slice' do
subject(:mash) { described_class.new(a: 1, b: 2) }
it 'returns a Hashie::Mash' do
expect(mash.slice(:a)).to be_kind_of(described_class)
end
it 'returns a Mash with only the keys passed' do
expect(mash.slice(:a).to_hash).to eq('a' => 1)
end
context 'when using with subclass' do
let(:subclass) { Class.new(Hashie::Mash) }
subject(:sub_mash) { subclass.new(a: 1, b: 2) }
it 'creates an instance of subclass' do
expect(sub_mash.slice(:a)).to be_kind_of(subclass)
end
end
end
describe '#transform_keys' do
subject(:mash) { described_class.new(a: 1, b: 2) }
it 'returns a Hashie::Mash' do
expect(mash.transform_keys { |k| k + k }).to be_kind_of(described_class)
end
it 'returns a Mash with transformed keys' do
expect(mash.transform_keys { |k| k + k }).to eq('aa' => 1, 'bb' => 2)
end
context 'when using with subclass' do
let(:subclass) { Class.new(Hashie::Mash) }
subject(:sub_mash) { subclass.new(a: 1, b: 2) }
it 'creates an instance of subclass' do
expect(sub_mash.transform_keys { |k| k + k }).to be_kind_of(subclass)
end
end
end
end
with_minimum_ruby('2.6.0') do
context 'ruby 2.6 merging' do
subject(:mash) { Hashie::Mash.new(model: 'Honda') }
it 'merges multiple hashes and mashes passeed to #merge' do
first_hash = { model: 'Ford' }
second_hash = { model: 'DeLorean' }
expect(mash.merge(first_hash, second_hash)).to eq('model' => 'DeLorean')
end
end
end
with_minimum_ruby('3.0.0') do
context '#except' do
subject(:mash) { described_class.new(a: 'A', b: 'B') }
it 'return a Hashie::Mash' do
expect(mash.except(:b)).to be_kind_of(described_class)
end
it 'excludes keys' do
expect(mash.except(:b)).to eq('a' => 'A')
end
end
end
end