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41584ab40c
Currently in services, we don’t make a distinction between input
parameters, options and dependencies.
This can lead to user input modifying the service behavior, whereas it
was not the developer intention.
This patch addresses the issue by changing how data is provided to
services:
- `params` is now used to hold all data coming from outside (typically
user input from a controller) and a contract will take its values from
`params`.
- `options` is a new key to provide options to a service. This typically
allows changing a service behavior at runtime. It is, of course,
totally optional.
- `dependencies` is actually anything else provided to the service (like
`guardian`) and available directly from the context object.
The `service_params` helper in controllers has been updated to reflect
those changes, so most of the existing services didn’t need specific
changes.
The options block has the same DSL as contracts, as it’s also based on
`ActiveModel`. There aren’t any validations, though. Here’s an example:
```ruby
options do
attribute :allow_changing_hidden, :boolean, default: false
end
```
And here’s an example of how to call a service with the new keys:
```ruby
MyService.call(params: { key1: value1, … }, options: { my_option: true }, guardian:, …)
```
127 lines
3.8 KiB
Ruby
127 lines
3.8 KiB
Ruby
# frozen_string_literal: true
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RSpec.describe Chat::LeaveChannel do
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describe described_class::Contract, type: :model do
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it { is_expected.to validate_presence_of(:channel_id) }
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end
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describe ".call" do
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subject(:result) { described_class.call(params:, **dependencies) }
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fab!(:channel_1) { Fabricate(:chat_channel) }
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fab!(:current_user) { Fabricate(:user) }
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let(:guardian) { Guardian.new(current_user) }
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let(:channel_id) { channel_1.id }
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let(:params) { { channel_id: } }
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let(:dependencies) { { guardian: } }
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before { SiteSetting.direct_message_enabled_groups = Group::AUTO_GROUPS[:everyone] }
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context "when all steps pass" do
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context "when category channel" do
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context "with existing membership" do
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before do
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channel_1.add(current_user)
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Chat::Channel.ensure_consistency!
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end
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it { is_expected.to run_successfully }
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it "unfollows the channel" do
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membership = channel_1.membership_for(current_user)
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expect { result }.to change { membership.reload.following }.from(true).to(false)
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end
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it "recomputes user count" do
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expect { result }.to change { channel_1.reload.user_count }.from(1).to(0)
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end
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end
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context "with no existing membership" do
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it { is_expected.to run_successfully }
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it "does nothing" do
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expect { result }.to_not change { Chat::UserChatChannelMembership }
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end
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end
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end
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context "when group channel" do
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context "with existing membership" do
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fab!(:channel_1) do
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Fabricate(:direct_message_channel, group: true, users: [current_user, Fabricate(:user)])
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end
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before { Chat::Channel.ensure_consistency! }
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it { is_expected.to run_successfully }
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it "leaves the channel" do
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membership = channel_1.membership_for(current_user)
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result
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expect(Chat::UserChatChannelMembership.exists?(membership.id)).to eq(false)
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expect(
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channel_1.chatable.direct_message_users.where(user_id: current_user.id).exists?,
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).to eq(false)
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end
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it "recomputes user count" do
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expect { result }.to change { channel_1.reload.user_count }.from(2).to(1)
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end
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end
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context "with no existing membership" do
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it { is_expected.to run_successfully }
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it "does nothing" do
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expect { result }.to_not change { Chat::UserChatChannelMembership }
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end
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end
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end
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context "when direct channel" do
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context "with existing membership" do
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fab!(:channel_1) do
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Fabricate(:direct_message_channel, users: [current_user, Fabricate(:user)])
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end
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before { Chat::Channel.ensure_consistency! }
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it { is_expected.to run_successfully }
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it "unfollows the channel" do
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membership = channel_1.membership_for(current_user)
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expect { result }.to change { membership.reload.following }.from(true).to(false)
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expect(
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channel_1.chatable.direct_message_users.where(user_id: current_user.id).exists?,
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).to eq(true)
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end
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it "recomputes user count" do
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expect { result }.to_not change { channel_1.reload.user_count }
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end
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end
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context "with no existing membership" do
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it { is_expected.to run_successfully }
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it "does nothing" do
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expect { result }.to_not change { Chat::UserChatChannelMembership }
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end
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end
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end
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end
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context "when channel is not found" do
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before { params[:channel_id] = -999 }
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it { is_expected.to fail_to_find_a_model(:channel) }
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end
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end
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end
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