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require 'cases/helper'
module ActiveRecord
class AttributeSetTest < ActiveRecord::TestCase
test "building a new set from raw attributes" do
builder = AttributeSet::Builder.new(foo: Type::Integer.new, bar: Type::Float.new)
attributes = builder.build_from_database(foo: '1.1', bar: '2.2')
assert_equal 1, attributes[:foo].value
assert_equal 2.2, attributes[:bar].value
end
test "building with custom types" do
builder = AttributeSet::Builder.new(foo: Type::Float.new)
attributes = builder.build_from_database({ foo: '3.3', bar: '4.4' }, { bar: Type::Integer.new })
assert_equal 3.3, attributes[:foo].value
assert_equal 4, attributes[:bar].value
end
test "[] returns a null object" do
builder = AttributeSet::Builder.new(foo: Type::Float.new)
attributes = builder.build_from_database(foo: '3.3')
assert_equal '3.3', attributes[:foo].value_before_type_cast
assert_equal nil, attributes[:bar].value_before_type_cast
end
test "duping creates a new hash and dups each attribute" do
builder = AttributeSet::Builder.new(foo: Type::Integer.new, bar: Type::String.new)
attributes = builder.build_from_database(foo: 1, bar: 'foo')
# Ensure the type cast value is cached
attributes[:foo].value
attributes[:bar].value
duped = attributes.dup
duped[:foo] = Attribute.from_database(2, Type::Integer.new)
duped[:bar].value << 'bar'
assert_equal 1, attributes[:foo].value
assert_equal 2, duped[:foo].value
assert_equal 'foo', attributes[:bar].value
assert_equal 'foobar', duped[:bar].value
end
test "freezing cloned set does not freeze original" do
attributes = AttributeSet.new({})
clone = attributes.clone
clone.freeze
assert clone.frozen?
assert_not attributes.frozen?
end
test "to_hash returns a hash of the type cast values" do
builder = AttributeSet::Builder.new(foo: Type::Integer.new, bar: Type::Float.new)
attributes = builder.build_from_database(foo: '1.1', bar: '2.2')
assert_equal({ foo: 1, bar: 2.2 }, attributes.to_hash)
assert_equal({ foo: 1, bar: 2.2 }, attributes.to_h)
end
test "known columns are built with uninitialized attributes" do
attributes = attributes_with_uninitialized_key
assert attributes[:foo].initialized?
assert_not attributes[:bar].initialized?
end
test "uninitialized attributes are not included in the attributes hash" do
attributes = attributes_with_uninitialized_key
assert_equal({ foo: 1 }, attributes.to_hash)
end
test "uninitialized attributes are not included in keys" do
attributes = attributes_with_uninitialized_key
assert_equal [:foo], attributes.keys
end
test "uninitialized attributes return false for include?" do
attributes = attributes_with_uninitialized_key
assert attributes.include?(:foo)
assert_not attributes.include?(:bar)
end
test "unknown attributes return false for include?" do
attributes = attributes_with_uninitialized_key
assert_not attributes.include?(:wibble)
end
test "fetch_value returns the value for the given initialized attribute" do
builder = AttributeSet::Builder.new(foo: Type::Integer.new, bar: Type::Float.new)
attributes = builder.build_from_database(foo: '1.1', bar: '2.2')
assert_equal 1, attributes.fetch_value(:foo)
assert_equal 2.2, attributes.fetch_value(:bar)
end
test "fetch_value returns nil for unknown attributes" do
attributes = attributes_with_uninitialized_key
assert_nil attributes.fetch_value(:wibble)
end
test "fetch_value uses the given block for uninitialized attributes" do
attributes = attributes_with_uninitialized_key
value = attributes.fetch_value(:bar) { |n| n.to_s + '!' }
assert_equal 'bar!', value
end
test "fetch_value returns nil for uninitialized attributes if no block is given" do
attributes = attributes_with_uninitialized_key
assert_nil attributes.fetch_value(:bar)
end
def attributes_with_uninitialized_key
builder = AttributeSet::Builder.new(foo: Type::Integer.new, bar: Type::Float.new)
builder.build_from_database(foo: '1.1')
end
end
end
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