✨ Unit tests for Mesh package

.github/workflows/unit-tests-mesh.yml

@@ -0,0 +1,28 @@
+name: Run Unit Tests for the graphql-mesh library
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.x]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run tests
+        run: npm test -w graphql-mesh

.github/workflows/unit-tests.yml → .github/workflows/unit-tests-spl.yml

@@ -1,4 +1,4 @@
-name: Run Unit Tests for directive-spl library
+name: Run Unit Tests for the directive-spl library
 
 on:
   push:

packages/graphql-mesh/.meshrc.ts

@@ -1,5 +1,5 @@
 import { YamlConfig } from '@graphql-mesh/types'
-import ConfigFromSwaggers from './utils/ConfigFromSwaggers'
+import ConfigFromSwaggers from './utils/configFromSwaggers'
 import { splDirectiveTypeDef } from 'directive-spl'
 import { catchHTTPErrorDirectiveTypeDef } from './directives/catchHTTPError'
 import { headersDirectiveTypeDef } from './directives/headers'

packages/graphql-mesh/package.json

@@ -5,7 +5,8 @@
     "downloadswaggers": "NODE_TLS_REJECT_UNAUTHORIZED='0' sucrase-node ./scripts/download-sources.ts",
     "postinstall": "patch-package",
     "serve": "npm run build && sucrase-node serve.ts",
-    "start": "npm run downloadswaggers && mesh dev"
+    "start": "npm run downloadswaggers && mesh dev",
+    "test": "vitest"
   },
   "dependencies": {
     "@graphql-mesh/cache-localforage": "^0.96.2",

packages/graphql-mesh/tests/cases/configFromSwaggers.test.ts

@@ -0,0 +1,289 @@
+import { describe, it, expect, beforeAll, vi } from 'vitest'
+import ConfigFromSwaggers from '../../utils/configFromSwaggers'
+import { globSync } from 'glob'
+import { readFileSync } from 'node:fs'
+import { Spec, Catalog } from '../../types'
+
+// Mock dependencies
+vi.mock('glob', () => ({ globSync: vi.fn() }))
+vi.mock('node:fs', () => ({ readFileSync: vi.fn() }))
+
+describe('ConfigFromSwaggers tests', () => {
+  let instance: ConfigFromSwaggers
+  let mockSpecs: Spec[]
+  let mockConfig: any
+
+  beforeAll(() => {
+    // Mock Swaggers
+    mockSpecs = [
+      {
+        openapi: '3.0.0',
+        info: {
+          title: 'getOwnerOfVehicleById',
+          version: '0.0.1'
+        },
+        paths: {
+          '/vehicle/{id}/owner': {
+            get: {
+              operationId: 'getOwnerOfVehicleById',
+              summary: 'Get the owner of a specific vehicle.',
+              responses: {
+                '200': {
+                  description: '',
+                  content: {
+                    'application/json': {
+                      schema: {
+                        $ref: '#/components/schemas/Person'
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          }
+        },
+        components: {
+          schemas: {
+            Person: {
+              type: 'object',
+              properties: {
+                id: {
+                  type: 'integer'
+                }
+              }
+            }
+          }
+        }
+      },
+      {
+        openapi: '3.0.0',
+        info: {
+          title: 'getVehicles',
+          version: '0.0.1'
+        },
+        paths: {
+          '/vehicles': {
+            get: {
+              operationId: 'getVehicles',
+              summary: 'Get all vehicles.',
+              responses: {
+                '200': {
+                  description: '',
+                  content: {
+                    'application/json': {
+                      schema: {
+                        $ref: '#/components/schemas/Vehicles'
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          }
+        },
+        components: {
+          schemas: {
+            Vehicles: {
+              type: 'object',
+              properties: {
+                items: {
+                  type: 'array',
+                  items: {
+                    $ref: '#/components/schemas/Vehicle'
+                  }
+                }
+              }
+            },
+            Vehicle: {
+              type: 'object',
+              discriminator: {
+                propertyName: 'type',
+                mapping: {
+                  Vehicle: '#/components/schemas/Vehicle',
+                  Car: '#/components/schemas/Car',
+                  Bike: '#/components/schemas/Bike'
+                }
+              },
+              properties: {
+                id: {
+                  type: 'integer'
+                },
+                type: {
+                  type: 'string'
+                }
+              }
+            },
+            Car: {
+              allOf: [
+                {
+                  $ref: '#/components/schemas/Vehicle'
+                },
+                {
+                  type: 'object',
+                  properties: {
+                    fuelType: {
+                      type: 'string'
+                    }
+                  }
+                }
+              ]
+            },
+            Bike: {
+              allOf: [
+                {
+                  $ref: '#/components/schemas/Vehicle'
+                },
+                {
+                  type: 'object',
+                  properties: {
+                    bikeType: {
+                      type: 'string'
+                    }
+                  }
+                }
+              ]
+            }
+          }
+        }
+      }
+    ]
+    // Mock config
+    mockConfig = {
+      sources: [
+        {
+          name: 'getVehicles',
+          handler: {
+            openapi: {
+              operationHeaders: {}
+            }
+          }
+        },
+        {
+          name: 'getOwnerOfVehicleById',
+          handler: {
+            openapi: {
+              operationHeaders: {}
+            }
+          }
+        }
+      ]
+    }
+    // Mock globSync
+    vi.mocked(globSync).mockReturnValue([
+      'mocks/getOwnerOfVehicleById.json',
+      'mocks/getVehicles.json'
+    ])
+    // Mock readFileSync to return values of mockSpecs alternatively
+    const readFileSyncMock = (path: string, options?: { encoding?: string | null; flag?: string } | BufferEncoding) => {
+      let data;
+      if (path === 'mocks/getOwnerOfVehicleById.json') {
+        data = JSON.stringify(mockSpecs[0])
+      } else if (path === 'mocks/getVehicles.json') {
+        data = JSON.stringify(mockSpecs[1])
+      }
+
+      const encoding = typeof options === 'string' ? options : options?.encoding;
+      if (encoding === 'buffer' || !encoding) {
+        return Buffer.from(data ?? '');
+      }
+      return data;
+    };
+    vi.mocked(readFileSync).mockImplementation(readFileSyncMock);
+
+    vi.resetModules()
+
+    instance = new ConfigFromSwaggers()
+
+    instance.config = mockConfig
+  })
+
+  // Specs tests
+  it('should initialize swaggers and specs correctly', () => {
+    expect(instance.swaggers).toEqual([
+      'mocks/getOwnerOfVehicleById.json',
+      'mocks/getVehicles.json'
+    ])
+    expect(instance.specs).toEqual(mockSpecs)
+  })
+
+  // Catalog test
+  it('should build the catalog correctly', () => {
+    const expectedCatalog: Catalog = {
+      '/vehicle/{id}/owner': {
+        operationIds: ['getOwnerOfVehicleById'],
+        type: 'Person',
+        swaggers: ['mocks/getOwnerOfVehicleById.json']
+      },
+      '/vehicles': {
+        operationIds: ['getVehicles'],
+        type: 'Vehicles',
+        swaggers: ['mocks/getVehicles.json']
+      }
+    }
+    expect(instance.catalog).toEqual(expectedCatalog)
+  })
+
+  // Test function to get available types
+  it('should return all the available types', () => {
+    const expectedTypes = ['Person', 'Vehicles', 'Vehicle', 'Car', 'Bike']
+    expect(instance.getAvailableTypes()).toEqual(expectedTypes)
+  })
+
+  // Test function to get interfaces with their children
+  it('should return interfaces with children correctly', () => {
+    const expectedInterfacesWithChildren: Record<string, string[]> = {
+      Vehicle: ['Car', 'Bike']
+    }
+    expect(instance.getInterfacesWithChildren()).toEqual(expectedInterfacesWithChildren)
+  })
+
+  // Test function to get OpenAPI sources
+  it('should get OpenAPI sources correctly', () => {
+    const expectedOpenApiSources = [
+      {
+        name: 'getOwnerOfVehicleById',
+        handler: {
+          openapi: {
+            source: 'mocks/getOwnerOfVehicleById.json',
+            endpoint: '{env.ENDPOINT}',
+            ignoreErrorResponses: true,
+            operationHeaders: {
+              Authorization: `{context.headers["authorization"]}`
+            }
+          }
+        },
+        transforms: undefined
+      },
+      {
+        name: 'getVehicles',
+        handler: {
+          openapi: {
+            source: 'mocks/getVehicles.json',
+            endpoint: '{env.ENDPOINT}',
+            ignoreErrorResponses: true,
+            operationHeaders: {
+              Authorization: `{context.headers["authorization"]}`
+            }
+          }
+        },
+        transforms: undefined
+      }
+    ]
+    expect(instance.getOpenApiSources()).toEqual(expectedOpenApiSources)
+  })
+
+  // Test function to get non-OpenAPI sources
+  it('should get other sources correctly', () => {
+    const expectedOtherSources = []
+    expect(instance.getOtherSources()).toEqual(expectedOtherSources)
+  })
+
+  // Test function to get config from Swaggers
+  it('should return the complete mesh config from swaggers', () => {
+    const meshConfig = instance.getMeshConfigFromSwaggers()
+    expect(meshConfig.defaultConfig).toEqual(mockConfig)
+    expect(meshConfig.additionalTypeDefs).toContain('type LinkItem')
+    expect(meshConfig.additionalResolvers).toBeDefined()
+    expect(meshConfig.sources.length).toEqual(2)
+  })
+})