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paper-trail-gem--paper_trail/spec/models/version_spec.rb
2021-08-29 22:22:39 -04:00

538 lines
21 KiB
Ruby

# frozen_string_literal: true
require "spec_helper"
module PaperTrail
::RSpec.describe Version, type: :model do
describe "#object_changes", versioning: true do
let(:widget) { Widget.create!(name: "Dashboard") }
let(:value) { widget.versions.last.object_changes }
context "when serializer is YAML" do
specify { expect(PaperTrail.serializer).to be PaperTrail::Serializers::YAML }
it "store out as a plain hash" do
expect(value).not_to include("HashWithIndifferentAccess")
end
end
context "with object_changes_adapter" do
after do
PaperTrail.config.object_changes_adapter = nil
end
it "creates a version with custom changes" do
adapter = instance_spy("CustomObjectChangesAdapter")
PaperTrail.config.object_changes_adapter = adapter
custom_changes_value = [["name", nil, "Dashboard"]]
allow(adapter).to(
receive(:diff).with(
hash_including("name" => [nil, "Dashboard"])
).and_return(custom_changes_value)
)
yaml = widget.versions.last.object_changes
expect(YAML.load(yaml)).to eq(custom_changes_value)
expect(adapter).to have_received(:diff)
end
it "defaults to the original behavior" do
adapter = Class.new.new
PaperTrail.config.object_changes_adapter = adapter
expect(widget.versions.last.object_changes).to start_with("---")
end
end
context "when serializer is JSON" do
before do
PaperTrail.serializer = PaperTrail::Serializers::JSON
end
after do
PaperTrail.serializer = PaperTrail::Serializers::YAML
end
it "store out as a plain hash" do
expect(value).not_to include("HashWithIndifferentAccess")
end
end
end
describe "#paper_trail_originator" do
context "with no previous versions" do
it "returns nil" do
expect(PaperTrail::Version.new.paper_trail_originator).to be_nil
end
end
context "with previous version", versioning: true do
it "returns name of whodunnit" do
name = FFaker::Name.name
widget = Widget.create!(name: FFaker::Name.name)
widget.versions.first.update!(whodunnit: name)
widget.update!(name: FFaker::Name.first_name)
expect(widget.versions.last.paper_trail_originator).to eq(name)
end
end
end
describe "#previous" do
context "with no previous versions" do
it "returns nil" do
expect(PaperTrail::Version.new.previous).to be_nil
end
end
context "with previous version", versioning: true do
it "returns a PaperTrail::Version" do
name = FFaker::Name.name
widget = Widget.create!(name: FFaker::Name.name)
widget.versions.first.update!(whodunnit: name)
widget.update!(name: FFaker::Name.first_name)
expect(widget.versions.last.previous).to be_instance_of(PaperTrail::Version)
end
end
end
describe "#terminator" do
it "is an alias for the `whodunnit` attribute" do
attributes = { whodunnit: FFaker::Name.first_name }
version = PaperTrail::Version.new(attributes)
expect(version.terminator).to eq(attributes[:whodunnit])
end
end
describe "#version_author" do
it "is an alias for the `terminator` method" do
version = PaperTrail::Version.new
expect(version.method(:version_author)).to eq(version.method(:terminator))
end
end
context "when changing the data type of database columns on the fly" do
# TODO: Changing the data type of these database columns in the middle
# of the test suite adds a fair amount of complexity. Is there a better
# way? We already have a `json_versions` table in our tests, maybe we
# could use that and add a `jsonb_versions` table?
column_overrides = [false]
if ENV["DB"] == "postgres"
column_overrides += %w[json jsonb]
end
column_overrides.shuffle.each do |column_datatype_override|
context "with a #{column_datatype_override || 'text'} column" do
let(:widget) { Widget.new }
let(:name) { FFaker::Name.first_name }
let(:int) { column_datatype_override ? 1 : rand(2..6) }
before do
if column_datatype_override
ActiveRecord::Base.connection.execute("SAVEPOINT pgtest;")
%w[object object_changes].each do |column|
ActiveRecord::Base.connection.execute(
"ALTER TABLE versions DROP COLUMN #{column};"
)
ActiveRecord::Base.connection.execute(
"ALTER TABLE versions ADD COLUMN #{column} #{column_datatype_override};"
)
end
PaperTrail::Version.reset_column_information
end
end
after do
PaperTrail.serializer = PaperTrail::Serializers::YAML
if column_datatype_override
ActiveRecord::Base.connection.execute("ROLLBACK TO SAVEPOINT pgtest;")
PaperTrail::Version.reset_column_information
end
end
describe "#where_attribute_changes", versioning: true do
it "requires its argument to be a string or a symbol" do
expect {
PaperTrail::Version.where_attribute_changes({})
}.to raise_error(ArgumentError)
expect {
PaperTrail::Version.where_attribute_changes([])
}.to raise_error(ArgumentError)
end
context "with object_changes_adapter configured" do
after do
PaperTrail.config.object_changes_adapter = nil
end
it "calls the adapter's where_attribute_changes method" do
adapter = instance_spy("CustomObjectChangesAdapter")
bicycle = Bicycle.create!(name: "abc")
bicycle.update!(name: "xyz")
allow(adapter).to(
receive(:where_attribute_changes).with(Version, :name)
).and_return([bicycle.versions[0], bicycle.versions[1]])
PaperTrail.config.object_changes_adapter = adapter
expect(
bicycle.versions.where_attribute_changes(:name)
).to match_array([bicycle.versions[0], bicycle.versions[1]])
expect(adapter).to have_received(:where_attribute_changes)
end
it "defaults to the original behavior" do
adapter = Class.new.new
PaperTrail.config.object_changes_adapter = adapter
bicycle = Bicycle.create!(name: "abc")
bicycle.update!(name: "xyz")
if column_datatype_override
expect(
bicycle.versions.where_attribute_changes(:name)
).to match_array([bicycle.versions[0], bicycle.versions[1]])
else
expect {
bicycle.versions.where_attribute_changes(:name)
}.to raise_error(
UnsupportedColumnType,
"where_attribute_changes expected json or jsonb column, got text"
)
end
end
end
# Only test json and jsonb columns. where_attribute_changes does
# not support text columns.
if column_datatype_override
it "locates versions according to their object_changes contents" do
widget.update!(name: "foobar", an_integer: 100)
widget.update!(an_integer: 17)
expect(
widget.versions.where_attribute_changes(:name)
).to eq([widget.versions[0]])
expect(
widget.versions.where_attribute_changes("an_integer")
).to eq([widget.versions[0], widget.versions[1]])
expect(
widget.versions.where_attribute_changes(:a_float)
).to eq([])
end
else
it "raises error" do
expect {
widget.versions.where_attribute_changes(:name).to_a
}.to raise_error(
UnsupportedColumnType,
"where_attribute_changes expected json or jsonb column, got text"
)
end
end
end
describe "#where_object", versioning: true do
it "requires its argument to be a Hash" do
widget.update!(name: name, an_integer: int)
widget.update!(name: "foobar", an_integer: 100)
widget.update!(name: FFaker::Name.last_name, an_integer: 15)
expect {
PaperTrail::Version.where_object(:foo)
}.to raise_error(ArgumentError)
expect {
PaperTrail::Version.where_object([])
}.to raise_error(ArgumentError)
end
context "with YAML serializer" do
it "locates versions according to their `object` contents" do
expect(PaperTrail.serializer).to be PaperTrail::Serializers::YAML
widget.update!(name: name, an_integer: int)
widget.update!(name: "foobar", an_integer: 100)
widget.update!(name: FFaker::Name.last_name, an_integer: 15)
expect(
PaperTrail::Version.where_object(an_integer: int)
).to eq([widget.versions[1]])
expect(
PaperTrail::Version.where_object(name: name)
).to eq([widget.versions[1]])
expect(
PaperTrail::Version.where_object(an_integer: 100)
).to eq([widget.versions[2]])
end
end
context "with JSON serializer" do
it "locates versions according to their `object` contents" do
PaperTrail.serializer = PaperTrail::Serializers::JSON
expect(PaperTrail.serializer).to be PaperTrail::Serializers::JSON
widget.update!(name: name, an_integer: int)
widget.update!(name: "foobar", an_integer: 100)
widget.update!(name: FFaker::Name.last_name, an_integer: 15)
expect(
PaperTrail::Version.where_object(an_integer: int)
).to eq([widget.versions[1]])
expect(
PaperTrail::Version.where_object(name: name)
).to eq([widget.versions[1]])
expect(
PaperTrail::Version.where_object(an_integer: 100)
).to eq([widget.versions[2]])
end
end
end
describe "#where_object_changes", versioning: true do
it "requires its argument to be a Hash" do
expect {
PaperTrail::Version.where_object_changes(:foo)
}.to raise_error(ArgumentError)
expect {
PaperTrail::Version.where_object_changes([])
}.to raise_error(ArgumentError)
end
context "with object_changes_adapter configured" do
after do
PaperTrail.config.object_changes_adapter = nil
end
it "calls the adapter's where_object_changes method" do
adapter = instance_spy("CustomObjectChangesAdapter")
bicycle = Bicycle.create!(name: "abc")
allow(adapter).to(
receive(:where_object_changes).with(Version, name: "abc")
).and_return(bicycle.versions[0..1])
PaperTrail.config.object_changes_adapter = adapter
expect(
bicycle.versions.where_object_changes(name: "abc")
).to match_array(bicycle.versions[0..1])
expect(adapter).to have_received(:where_object_changes)
end
it "defaults to the original behavior" do
adapter = Class.new.new
PaperTrail.config.object_changes_adapter = adapter
bicycle = Bicycle.create!(name: "abc")
if column_datatype_override
expect(
bicycle.versions.where_object_changes(name: "abc")
).to match_array(bicycle.versions[0..1])
else
expect {
bicycle.versions.where_object_changes(name: "abc")
}.to raise_error(
UnsupportedColumnType,
"where_object_changes expected json or jsonb column, got text"
)
end
end
end
# Only test json and jsonb columns. where_object_changes no longer
# supports text columns.
if column_datatype_override
it "locates versions according to their object_changes contents" do
widget.update!(name: name, an_integer: 0)
widget.update!(name: "foobar", an_integer: 100)
widget.update!(name: FFaker::Name.last_name, an_integer: int)
expect(
widget.versions.where_object_changes(name: name)
).to eq(widget.versions[0..1])
expect(
widget.versions.where_object_changes(an_integer: 100)
).to eq(widget.versions[1..2])
expect(
widget.versions.where_object_changes(an_integer: int)
).to eq([widget.versions.last])
expect(
widget.versions.where_object_changes(an_integer: 100, name: "foobar")
).to eq(widget.versions[1..2])
end
else
it "raises error" do
expect {
widget.versions.where_object_changes(name: "foo").to_a
}.to raise_error(
UnsupportedColumnType,
"where_object_changes expected json or jsonb column, got text"
)
end
end
end
describe "#where_object_changes_from", versioning: true do
it "requires its argument to be a Hash" do
expect {
PaperTrail::Version.where_object_changes_from(:foo)
}.to raise_error(ArgumentError)
expect {
PaperTrail::Version.where_object_changes_from([])
}.to raise_error(ArgumentError)
end
context "with object_changes_adapter configured" do
after do
PaperTrail.config.object_changes_adapter = nil
end
it "calls the adapter's where_object_changes_from method" do
adapter = instance_spy("CustomObjectChangesAdapter")
bicycle = Bicycle.create!(name: "abc")
bicycle.update!(name: "xyz")
allow(adapter).to(
receive(:where_object_changes_from).with(Version, name: "abc")
).and_return([bicycle.versions[1]])
PaperTrail.config.object_changes_adapter = adapter
expect(
bicycle.versions.where_object_changes_from(name: "abc")
).to match_array([bicycle.versions[1]])
expect(adapter).to have_received(:where_object_changes_from)
end
it "defaults to the original behavior" do
adapter = Class.new.new
PaperTrail.config.object_changes_adapter = adapter
bicycle = Bicycle.create!(name: "abc")
bicycle.update!(name: "xyz")
if column_datatype_override
expect(
bicycle.versions.where_object_changes_from(name: "abc")
).to match_array([bicycle.versions[1]])
else
expect {
bicycle.versions.where_object_changes_from(name: "abc")
}.to raise_error(
UnsupportedColumnType,
"where_object_changes_from expected json or jsonb column, got text"
)
end
end
end
# Only test json and jsonb columns. where_object_changes_from does
# not support text columns.
if column_datatype_override
it "locates versions according to their object_changes contents" do
widget.update!(name: name, an_integer: 0)
widget.update!(name: "foobar", an_integer: 100)
widget.update!(name: FFaker::Name.last_name, an_integer: int)
expect(
widget.versions.where_object_changes_from(name: name)
).to eq([widget.versions[1]])
expect(
widget.versions.where_object_changes_from(an_integer: 100)
).to eq([widget.versions[2]])
expect(
widget.versions.where_object_changes_from(an_integer: int)
).to eq([])
expect(
widget.versions.where_object_changes_from(an_integer: 100, name: "foobar")
).to eq([widget.versions[2]])
end
else
it "raises error" do
expect {
widget.versions.where_object_changes_from(name: "foo").to_a
}.to raise_error(
UnsupportedColumnType,
"where_object_changes_from expected json or jsonb column, got text"
)
end
end
end
describe "#where_object_changes_to", versioning: true do
it "requires its argument to be a Hash" do
expect {
PaperTrail::Version.where_object_changes_to(:foo)
}.to raise_error(ArgumentError)
expect {
PaperTrail::Version.where_object_changes_to([])
}.to raise_error(ArgumentError)
end
context "with object_changes_adapter configured" do
after do
PaperTrail.config.object_changes_adapter = nil
end
it "calls the adapter's where_object_changes_to method" do
adapter = instance_spy("CustomObjectChangesAdapter")
bicycle = Bicycle.create!(name: "abc")
bicycle.update!(name: "xyz")
allow(adapter).to(
receive(:where_object_changes_to).with(Version, name: "xyz")
).and_return([bicycle.versions[1]])
PaperTrail.config.object_changes_adapter = adapter
expect(
bicycle.versions.where_object_changes_to(name: "xyz")
).to match_array([bicycle.versions[1]])
expect(adapter).to have_received(:where_object_changes_to)
end
it "defaults to the original behavior" do
adapter = Class.new.new
PaperTrail.config.object_changes_adapter = adapter
bicycle = Bicycle.create!(name: "abc")
bicycle.update!(name: "xyz")
if column_datatype_override
expect(
bicycle.versions.where_object_changes_to(name: "xyz")
).to match_array([bicycle.versions[1]])
else
expect {
bicycle.versions.where_object_changes_to(name: "xyz")
}.to raise_error(
UnsupportedColumnType,
"where_object_changes_to expected json or jsonb column, got text"
)
end
end
end
# Only test json and jsonb columns. where_object_changes_to does
# not support text columns.
if column_datatype_override
it "locates versions according to their object_changes contents" do
widget.update!(name: name, an_integer: 0)
widget.update!(name: "foobar", an_integer: 100)
widget.update!(name: FFaker::Name.last_name, an_integer: int)
expect(
widget.versions.where_object_changes_to(name: name)
).to eq([widget.versions[0]])
expect(
widget.versions.where_object_changes_to(an_integer: 100)
).to eq([widget.versions[1]])
expect(
widget.versions.where_object_changes_to(an_integer: int)
).to eq([widget.versions[2]])
expect(
widget.versions.where_object_changes_to(an_integer: 100, name: "foobar")
).to eq([widget.versions[1]])
expect(
widget.versions.where_object_changes_to(an_integer: -1)
).to eq([])
end
else
it "raises error" do
expect {
widget.versions.where_object_changes_to(name: "foo").to_a
}.to raise_error(
UnsupportedColumnType,
"where_object_changes_to expected json or jsonb column, got text"
)
end
end
end
end
end
end
end
end