feat: Implement get role mappings API endpoint

packages/backend/src/controllers/api/v1/admin/saml-auth-providers/get-role-mappings.ee.js

@@ -0,0 +1,14 @@
+import { renderObject } from '../../../../../helpers/renderer.js';
+import SamlAuthProvider from '../../../../../models/saml-auth-provider.ee.js';
+
+export default async (request, response) => {
+  const samlAuthProvider = await SamlAuthProvider.query()
+    .findById(request.params.samlAuthProviderId)
+    .throwIfNotFound();
+
+  const roleMappings = await samlAuthProvider
+    .$relatedQuery('samlAuthProvidersRoleMappings')
+    .orderBy('remote_role_name', 'asc');
+
+  renderObject(response, roleMappings);
+};

packages/backend/src/controllers/api/v1/admin/saml-auth-providers/get-role-mappings.ee.test.js

@@ -0,0 +1,51 @@
+import { vi, describe, it, expect, beforeEach } from 'vitest';
+import request from 'supertest';
+import app from '../../../../../app.js';
+import createAuthTokenByUserId from '../../../../../helpers/create-auth-token-by-user-id.js';
+import { createRole } from '../../../../../../test/factories/role.js';
+import { createUser } from '../../../../../../test/factories/user.js';
+import { createSamlAuthProvider } from '../../../../../../test/factories/saml-auth-provider.ee.js';
+import { createRoleMapping } from '../../../../../../test/factories/role-mapping.js';
+import getRoleMappingsMock from '../../../../../../test/mocks/rest/api/v1/admin/saml-auth-providers/get-role-mappings.ee.js';
+import * as license from '../../../../../helpers/license.ee.js';
+
+describe('GET /api/v1/admin/saml-auth-providers/:samlAuthProviderId/role-mappings', () => {
+  let roleMappingOne, roleMappingTwo, samlAuthProvider, currentUser, token;
+
+  beforeEach(async () => {
+    const role = await createRole({ key: 'admin' });
+    currentUser = await createUser({ roleId: role.id });
+
+    samlAuthProvider = await createSamlAuthProvider();
+
+    roleMappingOne = await createRoleMapping({
+      samlAuthProviderId: samlAuthProvider.id,
+      remoteRoleName: 'Admin',
+    });
+
+    roleMappingTwo = await createRoleMapping({
+      samlAuthProviderId: samlAuthProvider.id,
+      remoteRoleName: 'User',
+    });
+
+    token = createAuthTokenByUserId(currentUser.id);
+  });
+
+  it('should return role mappings', async () => {
+    vi.spyOn(license, 'hasValidLicense').mockResolvedValue(true);
+
+    const response = await request(app)
+      .get(
+        `/api/v1/admin/saml-auth-providers/${samlAuthProvider.id}/role-mappings`
+      )
+      .set('Authorization', token)
+      .expect(200);
+
+    const expectedPayload = await getRoleMappingsMock([
+      roleMappingOne,
+      roleMappingTwo,
+    ]);
+
+    expect(response.body).toEqual(expectedPayload);
+  });
+});