Allow to create test cases on GraphQL

Add GraphQL mutation to create test cases

doc/api/graphql/reference/gitlab_schema.graphql

@@ -3004,6 +3004,56 @@ type CreateSnippetPayload {
   snippet: Snippet
 }
 
+"""
+Autogenerated input type of CreateTestCase
+"""
+input CreateTestCaseInput {
+  """
+  A unique identifier for the client performing the mutation.
+  """
+  clientMutationId: String
+
+  """
+  The test case description
+  """
+  description: String
+
+  """
+  The IDs of labels to be added to the test case.
+  """
+  labelIds: [ID!]
+
+  """
+  The project full path to create the test case
+  """
+  projectPath: ID!
+
+  """
+  The test case title
+  """
+  title: String!
+}
+
+"""
+Autogenerated return type of CreateTestCase
+"""
+type CreateTestCasePayload {
+  """
+  A unique identifier for the client performing the mutation.
+  """
+  clientMutationId: String
+
+  """
+  Errors encountered during execution of the mutation.
+  """
+  errors: [String!]!
+
+  """
+  The test case created
+  """
+  testCase: Issue
+}
+
 interface CurrentUserTodos {
   """
   Todos for the current user
@@ -10672,6 +10722,7 @@ type Mutation {
   createNote(input: CreateNoteInput!): CreateNotePayload
   createRequirement(input: CreateRequirementInput!): CreateRequirementPayload
   createSnippet(input: CreateSnippetInput!): CreateSnippetPayload
+  createTestCase(input: CreateTestCaseInput!): CreateTestCasePayload
   dastOnDemandScanCreate(input: DastOnDemandScanCreateInput!): DastOnDemandScanCreatePayload
   dastScannerProfileCreate(input: DastScannerProfileCreateInput!): DastScannerProfileCreatePayload
   dastScannerProfileDelete(input: DastScannerProfileDeleteInput!): DastScannerProfileDeletePayload

doc/api/graphql/reference/gitlab_schema.json

@@ -8150,6 +8150,150 @@
           "enumValues": null,
           "possibleTypes": null
         },
+        {
+          "kind": "INPUT_OBJECT",
+          "name": "CreateTestCaseInput",
+          "description": "Autogenerated input type of CreateTestCase",
+          "fields": null,
+          "inputFields": [
+            {
+              "name": "title",
+              "description": "The test case title",
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "String",
+                  "ofType": null
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "description",
+              "description": "The test case description",
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "labelIds",
+              "description": "The IDs of labels to be added to the test case.",
+              "type": {
+                "kind": "LIST",
+                "name": null,
+                "ofType": {
+                  "kind": "NON_NULL",
+                  "name": null,
+                  "ofType": {
+                    "kind": "SCALAR",
+                    "name": "ID",
+                    "ofType": null
+                  }
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "projectPath",
+              "description": "The project full path to create the test case",
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "SCALAR",
+                  "name": "ID",
+                  "ofType": null
+                }
+              },
+              "defaultValue": null
+            },
+            {
+              "name": "clientMutationId",
+              "description": "A unique identifier for the client performing the mutation.",
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "defaultValue": null
+            }
+          ],
+          "interfaces": null,
+          "enumValues": null,
+          "possibleTypes": null
+        },
+        {
+          "kind": "OBJECT",
+          "name": "CreateTestCasePayload",
+          "description": "Autogenerated return type of CreateTestCase",
+          "fields": [
+            {
+              "name": "clientMutationId",
+              "description": "A unique identifier for the client performing the mutation.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "errors",
+              "description": "Errors encountered during execution of the mutation.",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "NON_NULL",
+                "name": null,
+                "ofType": {
+                  "kind": "LIST",
+                  "name": null,
+                  "ofType": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "SCALAR",
+                      "name": "String",
+                      "ofType": null
+                    }
+                  }
+                }
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
+            {
+              "name": "testCase",
+              "description": "The test case created",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "Issue",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            }
+          ],
+          "inputFields": null,
+          "interfaces": [
+
+          ],
+          "enumValues": null,
+          "possibleTypes": null
+        },
         {
           "kind": "INTERFACE",
           "name": "CurrentUserTodos",
@@ -30360,6 +30504,33 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "createTestCase",
+              "description": null,
+              "args": [
+                {
+                  "name": "input",
+                  "description": null,
+                  "type": {
+                    "kind": "NON_NULL",
+                    "name": null,
+                    "ofType": {
+                      "kind": "INPUT_OBJECT",
+                      "name": "CreateTestCaseInput",
+                      "ofType": null
+                    }
+                  },
+                  "defaultValue": null
+                }
+              ],
+              "type": {
+                "kind": "OBJECT",
+                "name": "CreateTestCasePayload",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "dastOnDemandScanCreate",
               "description": null,

doc/api/graphql/reference/index.md

@@ -511,6 +511,16 @@ Autogenerated return type of CreateSnippet
 | `errors` | String! => Array | Errors encountered during execution of the mutation. |
 | `snippet` | Snippet | The snippet after mutation |
 
+### CreateTestCasePayload
+
+Autogenerated return type of CreateTestCase
+
+| Field | Type | Description |
+| ----- | ---- | ----------- |
+| `clientMutationId` | String | A unique identifier for the client performing the mutation. |
+| `errors` | String! => Array | Errors encountered during execution of the mutation. |
+| `testCase` | Issue | The test case created |
+
 ### DastOnDemandScanCreatePayload
 
 Autogenerated return type of DastOnDemandScanCreate

ee/app/graphql/ee/types/mutation_type.rb

@@ -37,6 +37,7 @@ module EE
         mount_mutation ::Mutations::DastScannerProfiles::Delete
         mount_mutation ::Mutations::Security::CiConfiguration::ConfigureSast
         mount_mutation ::Mutations::Namespaces::IncreaseStorageTemporarily
+        mount_mutation ::Mutations::QualityManagement::TestCases::Create
       end
     end
   end

ee/app/graphql/mutations/quality_management/test_cases/create.rb

+# frozen_string_literal: true
+
+module Mutations
+  module QualityManagement
+    module TestCases
+      class Create < BaseMutation
+        include ResolvesProject
+
+        graphql_name 'CreateTestCase'
+
+        authorize :admin_issue
+
+        argument :title, GraphQL::STRING_TYPE,
+                 required: true,
+                 description: 'The test case title'
+
+        argument :description, GraphQL::STRING_TYPE,
+                 required: false,
+                 description: 'The test case description'
+
+        argument :label_ids,
+                 [GraphQL::ID_TYPE],
+                 required: false,
+                 description: 'The IDs of labels to be added to the test case.'
+
+        argument :project_path, GraphQL::ID_TYPE,
+                 required: true,
+                 description: 'The project full path to create the test case'
+
+        field :test_case, Types::IssueType,
+              null: true,
+              description: 'The test case created'
+
+        def resolve(args)
+          project_path = args.delete(:project_path)
+          project = authorized_find!(full_path: project_path)
+
+          result = ::QualityManagement::TestCases::CreateService.new(
+            project,
+            context[:current_user],
+            **args
+          ).execute
+
+          test_case = result.payload[:issue]
+
+          {
+            test_case: test_case&.persisted? ? test_case : nil,
+            errors: Array.wrap(result.message)
+          }
+        end
+
+        private
+
+        def find_object(full_path:)
+          resolve_project(full_path: full_path)
+        end
+      end
+    end
+  end
+end

ee/app/services/quality_management/test_cases/create_service.rb

@@ -5,7 +5,7 @@ module QualityManagement
     class CreateService < BaseService
       ISSUE_TYPE = 'test_case'
 
-      def initialize(project, current_user, title:, description:, label_ids: [])
+      def initialize(project, current_user, title:, description: nil, label_ids: [])
         super(project, current_user)
 
         @title = title

ee/changelogs/unreleased/issue_233479_add_graphql_create_mutation.yml

+---
+title: Add GraphQL mutation to create test cases
+merge_request: 41190
+author:
+type: added

ee/spec/requests/api/graphql/mutations/quality_management/test_cases/create_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Create test case' do
+  include GraphqlHelpers
+
+  let_it_be_with_refind(:project) { create(:project, :private) }
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:label) { create(:label, project: project) }
+  let(:variables) { { project_path: project.full_path, title: 'foo', description: 'bar', label_ids: [label.id] } }
+
+  let(:mutation) do
+    graphql_mutation(:create_test_case, variables) do
+      <<~QL
+         clientMutationId
+         errors
+         testCase {
+           title
+           description
+           labels {
+             edges {
+               node {
+                 id
+               }
+             }
+           }
+         }
+      QL
+    end
+  end
+
+  def mutation_response
+    graphql_mutation_response(:create_test_case)
+  end
+
+  describe '#resolve' do
+    context 'when quality management feature is not available' do
+      before do
+        stub_licensed_features(quality_management: false)
+      end
+
+      it_behaves_like 'a mutation that returns top-level errors',
+                      errors: [
+                               'The resource that you are attempting to access does not exist '\
+                               'or you don\'t have permission to perform this action'
+                              ]
+
+      context 'with authorized logged user', :aggregate_failures do
+        before_all do
+          project.add_reporter(current_user)
+        end
+
+        it_behaves_like 'a mutation that returns errors in the response', errors: ["Test cases are not available for this project"]
+      end
+    end
+
+    context 'when quality management feature is available' do
+      before do
+        stub_licensed_features(quality_management: true)
+      end
+
+      context 'when user can create test cases' do
+        before_all do
+          project.add_reporter(current_user)
+        end
+
+        it 'creates new test case', :aggregate_failures do
+          expect { post_graphql_mutation(mutation, current_user: current_user) }.to change { Issue.count }.by(1)
+          test_case = mutation_response['testCase']
+          expect(test_case).not_to be_nil
+          expect(test_case['title']).to eq('foo')
+          expect(test_case['description']).to eq('bar')
+          expect(test_case['labels']['edges'][0]["node"]["id"]).to eq(label.to_global_id.to_s)
+          expect(mutation_response['errors']).to eq([])
+        end
+
+        context 'with invalid arguments' do
+          let(:variables) { { not_valid: true } }
+
+          it_behaves_like 'an invalid argument to the mutation', argument_name: :not_valid
+        end
+
+        context 'when quality_test_cases flag is disabled' do
+          before do
+            stub_feature_flags(quality_test_cases: false)
+          end
+
+          it_behaves_like 'a mutation that returns errors in the response', errors: ["Test cases are not available for this project"]
+        end
+      end
+
+      context 'when user cannot create test cases' do
+        before_all do
+          project.add_guest(current_user)
+        end
+
+        it_behaves_like 'a mutation that returns top-level errors',
+                        errors: [
+                                 'The resource that you are attempting to access does not exist '\
+                                 'or you don\'t have permission to perform this action'
+                                ]
+      end
+    end
+  end
+end