add createStakeRemoveMutation

spec/graphql/mutations/create_stake_remove_order_spec.rb

@@ -0,0 +1,120 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe(Mutations::CreateStakeRemoveOrder, type: :mutation) do
+  let(:query_string) do
+    <<~GQL
+      mutation(
+        $currencyId: ID!,
+        $amount: String!,
+        $poolName: String!,
+      ) {
+        createStakeRemoveOrder(input: {
+          order: {
+            currencyId: $currencyId,
+            amount: $amount,
+            poolName: $poolName,
+          }
+        }) {
+          errors {
+            fullMessages
+            fieldName
+            messages
+            path
+          }
+          order {
+            poolName
+            status
+            amount
+          }
+        }
+      }
+    GQL
+  end
+
+  context "when the user has enough balance" do
+    it "withdraws from his account and creates a buy order" do
+      currency = create(:currency)
+      user = create(
+        :user,
+        balances: [
+          build(:balance, currency: currency, amount: 0),
+        ]
+      )
+
+      currency_global_id = GraphQL::Schema::UniqueWithinType.encode("Currency", currency.id)
+
+      variables = {
+        "currencyId": currency_global_id,
+        "amount": "-200.80",
+        "poolName": "CAKE/BNB",
+        "status": "PROCESSING",
+      }
+
+      context = { current_user: user }
+
+      result = XStakeSchema.execute(
+        query_string,
+        variables: variables,
+        context: context
+      ).to_h.with_indifferent_access
+
+      expect(result).to(eq({
+        "data" => {
+          "createStakeRemoveOrder" => {
+            "errors" => nil,
+            "order" => {
+              "status" => "PROCESSING",
+              "amount" => "-200.8",
+              "poolName" => "CAKE/BNB",
+            },
+          },
+        },
+      }))
+    end
+  end
+
+  context "when it repeats the mutation with a request in `processing`" do
+    it "update amount from the order" do
+      currency = create(:currency)
+      user = create(
+        :user,
+        balances: [
+          build(:balance, currency: currency, amount: 0),
+        ]
+      )
+
+      currency_global_id = GraphQL::Schema::UniqueWithinType.encode("Currency", currency.id)
+
+      create(:stake_order, amount: -200.8, user: user, pool_name: "CAKE/BNB", currency: currency)
+
+      variables = {
+        "currencyId": currency_global_id,
+        "amount": "-200.80",
+        "poolName": "CAKE/BNB",
+      }
+
+      context = { current_user: user }
+
+      result = XStakeSchema.execute(
+        query_string,
+        variables: variables,
+        context: context
+      ).to_h.with_indifferent_access
+
+      expect(result).to(eq({
+        "data" => {
+          "createStakeRemoveOrder" => {
+            "errors" => nil,
+            "order" => {
+              "status" => "PROCESSING",
+              "amount" => "-401.6",
+              "poolName" => "CAKE/BNB",
+            },
+          },
+        },
+      }))
+    end
+  end
+end