fix(medusa): Move discount usage from rule to discount

integration-tests/api/__tests__/admin/discount.js

@@ -0,0 +1,83 @@
+const { dropDatabase } = require("pg-god");
+const path = require("path");
+const { Region, DiscountRule, Discount } = require("@medusajs/medusa");
+
+const setupServer = require("../../../helpers/setup-server");
+const { useApi } = require("../../../helpers/use-api");
+const { initDb } = require("../../../helpers/use-db");
+const adminSeeder = require("../../helpers/admin-seeder");
+
+jest.setTimeout(30000);
+
+describe("/admin/discounts", () => {
+  let medusaProcess;
+  let dbConnection;
+
+  beforeAll(async () => {
+    const cwd = path.resolve(path.join(__dirname, "..", ".."));
+    dbConnection = await initDb({ cwd });
+    medusaProcess = await setupServer({ cwd });
+  });
+
+  afterAll(async () => {
+    await dbConnection.close();
+    await dropDatabase({ databaseName: "medusa-integration" });
+
+    medusaProcess.kill();
+  });
+
+  describe("POST /admin/discounts/:discount_id/dynamic-codes", () => {
+    beforeEach(async () => {
+      const manager = dbConnection.manager;
+      try {
+        await adminSeeder(dbConnection);
+        await manager.insert(DiscountRule, {
+          id: "test-discount-rule",
+          description: "Dynamic rule",
+          type: "percentage",
+          value: 10,
+          allocation: "total",
+        });
+        await manager.insert(Discount, {
+          id: "test-discount",
+          code: "DYNAMIC",
+          is_dynamic: true,
+          is_disabled: false,
+          rule_id: "test-discount-rule",
+        });
+      } catch (err) {
+        console.log(err);
+        throw err;
+      }
+    });
+
+    afterEach(async () => {
+      const manager = dbConnection.manager;
+      await manager.query(`DELETE FROM "discount"`);
+      await manager.query(`DELETE FROM "discount_rule"`);
+      await manager.query(`DELETE FROM "user"`);
+    });
+
+    it("creates a dynamic discount", async () => {
+      const api = useApi();
+
+      const response = await api
+        .post(
+          "/admin/discounts/test-discount/dynamic-codes",
+          {
+            code: "HELLOWORLD",
+          },
+          {
+            headers: {
+              Authorization: "Bearer test_token",
+            },
+          }
+        )
+        .catch((err) => {
+          console.log(err);
+        });
+
+      expect(response.status).toEqual(200);
+    });
+  });
+});