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require 'spec_helper'
RSpec.describe ::SuperGood::SolidusTaxJar::TaxCalculator do
describe "#calculate" do
subject { calculator.calculate }
let(:calculator) { described_class.new(order, api: dummy_api) }
let(:dummy_api) do
instance_double ::SuperGood::SolidusTaxJar::API
end
let(:order) do
::Spree::Order.new(
id: 10,
store: store,
ship_address: address,
line_items: line_items,
shipments: [
boring_shipment,
shipment_with_adjustment,
shipment_with_existing_tax
]
)
end
let(:line_items) { [::Spree::LineItem.new] }
let(:boring_shipment) do
::Spree::Shipment.new(id: 1, cost: 7)
end
let(:shipment_with_adjustment) do
::Spree::Shipment.new(
id: 2,
cost: 20,
adjustments: [
::Spree::Adjustment.new(amount: -7)
]
)
end
let(:shipment_with_existing_tax) do
::Spree::Shipment.new(
id: 3,
cost: 10,
additional_tax_total: 3,
adjustments: [
::Spree::Adjustment.new(
amount: 3,
source_type: "Spree::TaxRate"
)
]
)
end
let(:store) do
::Spree::Store.new(
name: "Default Store",
url: "https://store.example.com",
code: "store",
mail_from_address: "contact@example.com",
cart_tax_country_iso: "US"
)
end
context "when the order has an empty tax address" do
let(:address) { nil }
it "returns no taxes" do
expect(subject.order_id).to eq order.id
expect(subject.shipment_taxes).to be_empty
expect(subject.line_item_taxes).to be_empty
end
end
context "when the order has no line items" do
let(:address) do
::Spree::Address.new(
first_name: "Ronnie James",
country: ::Spree::Country.new(iso: "US")
)
end
let(:line_items) { [] }
it "returns no taxes" do
expect(subject.order_id).to eq order.id
expect(subject.shipment_taxes).to be_empty
expect(subject.line_item_taxes).to be_empty
end
end
context "when the API encounters an error" do
let(:address) do
::Spree::Address.new(
first_name: "Ronnie James",
country: ::Spree::Country.new(iso: "US")
)
end
before do
allow(dummy_api).to receive(:tax_for).with(order).and_raise("A bad thing happened.")
end
it "calls the configured error handler" do
expect(SuperGood::SolidusTaxJar.exception_handler).to receive(:call) do |e|
expect(e).to be_a StandardError
expect(e.message).to eq "A bad thing happened."
end
subject
end
it "returns no taxes" do
expect(subject.order_id).to eq order.id
expect(subject.shipment_taxes).to be_empty
expect(subject.line_item_taxes).to be_empty
end
end
context "when the order has a non-empty tax address" do
let(:address) do
::Spree::Address.new(
first_name: "Ronnie James",
country: ::Spree::Country.new(iso: "US")
)
end
before do
allow(dummy_api).to receive(:tax_for).with(order).and_return(
instance_double(
::Taxjar::Tax,
breakdown: breakdown
)
)
end
context "and there is tax" do
let!(:tax_rate) do
::Spree::TaxRate.create!(
name: "Sales Tax",
amount: 0.5,
calculator: ::Spree::Calculator.new
)
end
let(:breakdown) do
instance_double ::Taxjar::Breakdown,
line_items: [taxjar_line_item],
shipping?: !!shipping_tax_breakdown,
shipping: shipping_tax_breakdown
end
let(:taxjar_line_item) do
instance_double ::Taxjar::BreakdownLineItem, id: "33", tax_collectable: 6.66
end
let(:shipping_tax_breakdown) { nil }
it "returns the taxes" do
expect(subject.order_id).to eq order.id
expect(subject.shipment_taxes).to be_empty
expect(subject.line_item_taxes.length).to eq 1
item_tax = subject.line_item_taxes.first
aggregate_failures do
expect(item_tax.item_id).to eq 33
expect(item_tax.label).to eq "Sales Tax"
expect(item_tax.tax_rate).to eq tax_rate
expect(item_tax.amount).to eq 6.66
expect(item_tax.included_in_price).to eq false
end
end
context "but the taxable address check returns false" do
before do
allow(SuperGood::SolidusTaxJar.taxable_address_check)
.to receive(:call).with(address)
.and_return(false)
end
it "returns no taxes" do
expect(subject.order_id).to eq order.id
expect(subject.shipment_taxes).to be_empty
expect(subject.line_item_taxes).to be_empty
end
end
context "when there are shipping taxes" do
let(:shipping_tax_breakdown) do
instance_double ::Taxjar::Shipping, tax_collectable: 10.00
end
it "returns the shipping taxes" do
shipment_taxes = subject.shipment_taxes
expect(shipment_taxes.length).to eq 3
aggregate_failures do
expect(shipment_taxes[0].item_id).to eq 1
expect(shipment_taxes[0].label).to eq "Sales Tax"
expect(shipment_taxes[0].tax_rate).to eq tax_rate
expect(shipment_taxes[0].amount).to eq 2.33
expect(shipment_taxes[0].included_in_price).to eq false
expect(shipment_taxes[1].item_id).to eq 2
expect(shipment_taxes[1].label).to eq "Sales Tax"
expect(shipment_taxes[1].tax_rate).to eq tax_rate
expect(shipment_taxes[1].amount).to eq 4.33
expect(shipment_taxes[1].included_in_price).to eq false
expect(shipment_taxes[2].item_id).to eq 3
expect(shipment_taxes[2].label).to eq "Sales Tax"
expect(shipment_taxes[2].tax_rate).to eq tax_rate
expect(shipment_taxes[2].amount).to eq 3.34
expect(shipment_taxes[2].included_in_price).to eq false
end
end
end
context "when test_mode is set" do
before { SuperGood::SolidusTaxJar.test_mode = true }
after { SuperGood::SolidusTaxJar.test_mode = false }
it "returns no taxes" do
expect(subject.order_id).to eq order.id
expect(subject.shipment_taxes).to be_empty
expect(subject.line_item_taxes).to be_empty
end
end
end
context "and there is not a breakdown" do
let(:breakdown) { nil }
it "returns no taxes" do
expect(subject.order_id).to eq order.id
expect(subject.shipment_taxes).to be_empty
expect(subject.line_item_taxes).to be_empty
end
end
end
end
end
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