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|
# frozen_string_literal: true
require "spec_helper"
RSpec.describe Gitlab::Json do
before do
stub_feature_flags(json_wrapper_legacy_mode: true)
end
shared_examples "json" do
describe ".parse" do
context "legacy_mode is disabled by default" do
it "parses an object" do
expect(subject.parse('{ "foo": "bar" }')).to eq({ "foo" => "bar" })
end
it "parses an array" do
expect(subject.parse('[{ "foo": "bar" }]')).to eq([{ "foo" => "bar" }])
end
it "parses a string" do
expect(subject.parse('"foo"', legacy_mode: false)).to eq("foo")
end
it "parses a true bool" do
expect(subject.parse("true", legacy_mode: false)).to be(true)
end
it "parses a false bool" do
expect(subject.parse("false", legacy_mode: false)).to be(false)
end
end
context "legacy_mode is enabled" do
it "parses an object" do
expect(subject.parse('{ "foo": "bar" }', legacy_mode: true)).to eq({ "foo" => "bar" })
end
it "parses an array" do
expect(subject.parse('[{ "foo": "bar" }]', legacy_mode: true)).to eq([{ "foo" => "bar" }])
end
it "raises an error on a string" do
expect { subject.parse('"foo"', legacy_mode: true) }.to raise_error(JSON::ParserError)
end
it "raises an error on a true bool" do
expect { subject.parse("true", legacy_mode: true) }.to raise_error(JSON::ParserError)
end
it "raises an error on a false bool" do
expect { subject.parse("false", legacy_mode: true) }.to raise_error(JSON::ParserError)
end
end
context "feature flag is disabled" do
before do
stub_feature_flags(json_wrapper_legacy_mode: false)
end
it "parses an object" do
expect(subject.parse('{ "foo": "bar" }', legacy_mode: true)).to eq({ "foo" => "bar" })
end
it "parses an array" do
expect(subject.parse('[{ "foo": "bar" }]', legacy_mode: true)).to eq([{ "foo" => "bar" }])
end
it "parses a string" do
expect(subject.parse('"foo"', legacy_mode: true)).to eq("foo")
end
it "parses a true bool" do
expect(subject.parse("true", legacy_mode: true)).to be(true)
end
it "parses a false bool" do
expect(subject.parse("false", legacy_mode: true)).to be(false)
end
end
end
describe ".parse!" do
context "legacy_mode is disabled by default" do
it "parses an object" do
expect(subject.parse!('{ "foo": "bar" }')).to eq({ "foo" => "bar" })
end
it "parses an array" do
expect(subject.parse!('[{ "foo": "bar" }]')).to eq([{ "foo" => "bar" }])
end
it "parses a string" do
expect(subject.parse!('"foo"', legacy_mode: false)).to eq("foo")
end
it "parses a true bool" do
expect(subject.parse!("true", legacy_mode: false)).to be(true)
end
it "parses a false bool" do
expect(subject.parse!("false", legacy_mode: false)).to be(false)
end
end
context "legacy_mode is enabled" do
it "parses an object" do
expect(subject.parse!('{ "foo": "bar" }', legacy_mode: true)).to eq({ "foo" => "bar" })
end
it "parses an array" do
expect(subject.parse!('[{ "foo": "bar" }]', legacy_mode: true)).to eq([{ "foo" => "bar" }])
end
it "raises an error on a string" do
expect { subject.parse!('"foo"', legacy_mode: true) }.to raise_error(JSON::ParserError)
end
it "raises an error on a true bool" do
expect { subject.parse!("true", legacy_mode: true) }.to raise_error(JSON::ParserError)
end
it "raises an error on a false bool" do
expect { subject.parse!("false", legacy_mode: true) }.to raise_error(JSON::ParserError)
end
end
context "feature flag is disabled" do
before do
stub_feature_flags(json_wrapper_legacy_mode: false)
end
it "parses an object" do
expect(subject.parse!('{ "foo": "bar" }', legacy_mode: true)).to eq({ "foo" => "bar" })
end
it "parses an array" do
expect(subject.parse!('[{ "foo": "bar" }]', legacy_mode: true)).to eq([{ "foo" => "bar" }])
end
it "parses a string" do
expect(subject.parse!('"foo"', legacy_mode: true)).to eq("foo")
end
it "parses a true bool" do
expect(subject.parse!("true", legacy_mode: true)).to be(true)
end
it "parses a false bool" do
expect(subject.parse!("false", legacy_mode: true)).to be(false)
end
end
end
describe ".dump" do
it "dumps an object" do
expect(subject.dump({ "foo" => "bar" })).to eq('{"foo":"bar"}')
end
it "dumps an array" do
expect(subject.dump([{ "foo" => "bar" }])).to eq('[{"foo":"bar"}]')
end
it "dumps a string" do
expect(subject.dump("foo")).to eq('"foo"')
end
it "dumps a true bool" do
expect(subject.dump(true)).to eq("true")
end
it "dumps a false bool" do
expect(subject.dump(false)).to eq("false")
end
end
describe ".generate" do
let(:obj) do
{ test: true, "foo.bar" => "baz", is_json: 1, some: [1, 2, 3] }
end
it "generates JSON" do
expected_string = <<~STR.chomp
{"test":true,"foo.bar":"baz","is_json":1,"some":[1,2,3]}
STR
expect(subject.generate(obj)).to eq(expected_string)
end
it "allows you to customise the output" do
opts = {
indent: " ",
space: " ",
space_before: " ",
object_nl: "\n",
array_nl: "\n"
}
json = subject.generate(obj, opts)
expected_string = <<~STR.chomp
{
"test" : true,
"foo.bar" : "baz",
"is_json" : 1,
"some" : [
1,
2,
3
]
}
STR
expect(json).to eq(expected_string)
end
end
describe ".pretty_generate" do
let(:obj) do
{
test: true,
"foo.bar" => "baz",
is_json: 1,
some: [1, 2, 3],
more: { test: true },
multi_line_empty_array: [],
multi_line_empty_obj: {}
}
end
it "generates pretty JSON" do
expected_string = <<~STR.chomp
{
"test": true,
"foo.bar": "baz",
"is_json": 1,
"some": [
1,
2,
3
],
"more": {
"test": true
},
"multi_line_empty_array": [
],
"multi_line_empty_obj": {
}
}
STR
expect(subject.pretty_generate(obj)).to eq(expected_string)
end
it "allows you to customise the output" do
opts = {
space_before: " "
}
json = subject.pretty_generate(obj, opts)
expected_string = <<~STR.chomp
{
"test" : true,
"foo.bar" : "baz",
"is_json" : 1,
"some" : [
1,
2,
3
],
"more" : {
"test" : true
},
"multi_line_empty_array" : [
],
"multi_line_empty_obj" : {
}
}
STR
expect(json).to eq(expected_string)
end
end
context "the feature table is missing" do
before do
allow(Feature::FlipperFeature).to receive(:table_exists?).and_return(false)
end
it "skips legacy mode handling" do
expect(Feature).not_to receive(:enabled?).with(:json_wrapper_legacy_mode, default_enabled: true)
subject.send(:handle_legacy_mode!, {})
end
it "skips oj feature detection" do
expect(Feature).not_to receive(:enabled?).with(:oj_json, default_enabled: true)
subject.send(:enable_oj?)
end
end
context "the database is missing" do
before do
allow(Feature::FlipperFeature).to receive(:table_exists?).and_raise(PG::ConnectionBad)
end
it "still parses json" do
expect(subject.parse("{}")).to eq({})
end
it "still generates json" do
expect(subject.dump({})).to eq("{}")
end
end
end
context "oj gem" do
before do
stub_feature_flags(oj_json: true)
end
it_behaves_like "json"
describe "#enable_oj?" do
it "returns true" do
expect(subject.enable_oj?).to be(true)
end
end
end
context "json gem" do
before do
stub_feature_flags(oj_json: false)
end
it_behaves_like "json"
describe "#enable_oj?" do
it "returns false" do
expect(subject.enable_oj?).to be(false)
end
end
end
describe Gitlab::Json::GrapeFormatter do
subject { described_class.call(obj, env) }
let(:obj) { { test: true } }
let(:env) { {} }
let(:result) { "{\"test\":true}" }
context "oj is enabled" do
before do
stub_feature_flags(oj_json: true)
end
context "grape_gitlab_json flag is enabled" do
before do
stub_feature_flags(grape_gitlab_json: true)
end
it "generates JSON" do
expect(subject).to eq(result)
end
it "uses Gitlab::Json" do
expect(Gitlab::Json).to receive(:dump).with(obj)
subject
end
end
context "grape_gitlab_json flag is disabled" do
before do
stub_feature_flags(grape_gitlab_json: false)
end
it "generates JSON" do
expect(subject).to eq(result)
end
it "uses Grape::Formatter::Json" do
expect(Grape::Formatter::Json).to receive(:call).with(obj, env)
subject
end
end
end
context "oj is disabled" do
before do
stub_feature_flags(oj_json: false)
end
it "generates JSON" do
expect(subject).to eq(result)
end
it "uses Grape::Formatter::Json" do
expect(Grape::Formatter::Json).to receive(:call).with(obj, env)
subject
end
end
end
describe Gitlab::Json::LimitedEncoder do
subject { described_class.encode(obj, limit: 8.kilobytes) }
context 'when object size is acceptable' do
let(:obj) { { test: true } }
it 'returns json string' do
is_expected.to eq("{\"test\":true}")
end
end
context 'when object is too big' do
let(:obj) { [{ test: true }] * 1000 }
it 'raises LimitExceeded error' do
expect { subject }.to raise_error(
Gitlab::Json::LimitedEncoder::LimitExceeded
)
end
end
context 'when json_limited_encoder is disabled' do
let(:obj) { [{ test: true }] * 1000 }
it 'does not raise an error' do
stub_feature_flags(json_limited_encoder: false)
expect { subject }.not_to raise_error
end
end
end
end
|
