test: add test for upload dataset files page

tests/component/sections/upload-dataset-files/UploadDatasetFiles.spec.tsx

@@ -0,0 +1,49 @@
+import { DatasetRepository } from '../../../../src/dataset/domain/repositories/DatasetRepository'
+import { DatasetMother } from '../../dataset/domain/models/DatasetMother'
+import { FileRepository } from '../../../../src/files/domain/repositories/FileRepository'
+import { Dataset as DatasetModel } from '../../../../src/dataset/domain/models/Dataset'
+import { ReactNode } from 'react'
+import { DatasetProvider } from '../../../../src/sections/dataset/DatasetProvider'
+import { UploadDatasetFiles } from '../../../../src/sections/upload-dataset-files/UploadDatasetFiles'
+
+const fileRepository: FileRepository = {} as FileRepository
+const datasetRepository: DatasetRepository = {} as DatasetRepository
+
+describe('Dataset', () => {
+  const mountWithDataset = (component: ReactNode, dataset: DatasetModel | undefined) => {
+    const searchParams = { persistentId: 'some-persistent-id' }
+    datasetRepository.getByPersistentId = cy.stub().resolves(dataset)
+
+    cy.customMount(
+      <DatasetProvider repository={datasetRepository} searchParams={searchParams}>
+        {component}
+      </DatasetProvider>
+    )
+  }
+
+  it('renders skeleton while loading', () => {
+    const testDataset = DatasetMother.create()
+
+    mountWithDataset(<UploadDatasetFiles fileRepository={fileRepository} />, testDataset)
+
+    cy.findByText('Temporary Loading until having shape of skeleton').should('exist')
+    cy.findByText(testDataset.version.title).should('not.exist')
+  })
+
+  it('renders page not found when dataset is null', () => {
+    const emptyDataset = DatasetMother.createEmpty()
+
+    mountWithDataset(<UploadDatasetFiles fileRepository={fileRepository} />, emptyDataset)
+
+    cy.findByText('Page Not Found').should('exist')
+  })
+
+  it('renders the breadcrumbs', () => {
+    const testDataset = DatasetMother.create()
+
+    mountWithDataset(<UploadDatasetFiles fileRepository={fileRepository} />, testDataset)
+
+    cy.findByText('Dataset Title').should('exist').should('have.class', 'active')
+    cy.findByRole('link', { name: 'Root' }).should('exist')
+  })
+})