dspace-angular/src/app/admin/admin-registries/metadata-registry/metadata-schema-form/metadata-schema-form.component.spec.ts

import { CommonModule } from '@angular/common';
import { NO_ERRORS_SCHEMA } from '@angular/core';
import {
  ComponentFixture,
  inject,
  TestBed,
  waitForAsync,
} from '@angular/core/testing';
import { RouterTestingModule } from '@angular/router/testing';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { TranslateModule } from '@ngx-translate/core';
import { of as observableOf } from 'rxjs';

import { MetadataSchema } from '../../../../core/metadata/metadata-schema.model';
import { RegistryService } from '../../../../core/registry/registry.service';
import { FormBuilderService } from '../../../../shared/form/builder/form-builder.service';
import { FormComponent } from '../../../../shared/form/form.component';
import { getMockFormBuilderService } from '../../../../shared/mocks/form-builder-service.mock';
import { EnumKeysPipe } from '../../../../shared/utils/enum-keys-pipe';
import { MetadataSchemaFormComponent } from './metadata-schema-form.component';

describe('MetadataSchemaFormComponent', () => {
  let component: MetadataSchemaFormComponent;
  let fixture: ComponentFixture<MetadataSchemaFormComponent>;
  let registryService: RegistryService;

  /* eslint-disable no-empty,@typescript-eslint/no-empty-function */
  const registryServiceStub = {
    getActiveMetadataSchema: () => observableOf(undefined),
    createOrUpdateMetadataSchema: (schema: MetadataSchema) => observableOf(schema),
    cancelEditMetadataSchema: () => {
    },
    clearMetadataSchemaRequests: () => observableOf(undefined),
  };
  const formBuilderServiceStub = {
    createFormGroup: () => {
      return {
        patchValue: () => {
        },
        reset(_value?: any, _options?: { onlySelf?: boolean; emitEvent?: boolean; }): void {
        },
      };
    },
  };
  /* eslint-enable no-empty, @typescript-eslint/no-empty-function */

  beforeEach(waitForAsync(() => {
    return TestBed.configureTestingModule({
      imports: [CommonModule, RouterTestingModule.withRoutes([]), TranslateModule.forRoot(), NgbModule, MetadataSchemaFormComponent, EnumKeysPipe],
      providers: [
        { provide: RegistryService, useValue: registryServiceStub },
        { provide: FormBuilderService, useValue: getMockFormBuilderService() },
      ],
      schemas: [NO_ERRORS_SCHEMA],
    })
      .overrideComponent(MetadataSchemaFormComponent, {
        remove: {
          imports: [FormComponent],
        },
      })
      .compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(MetadataSchemaFormComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

  beforeEach(inject([RegistryService], (s) => {
    registryService = s;
  }));

  describe('when submitting the form', () => {
    const namespace = 'fake namespace';
    const prefix = 'fake';

    const expected = Object.assign(new MetadataSchema(), {
      namespace: namespace,
      prefix: prefix,
    } as MetadataSchema);

    beforeEach(() => {
      spyOn(component.submitForm, 'emit');
      component.name.value = prefix;
      component.namespace.value = namespace;
    });

    describe('without an active schema', () => {
      beforeEach(() => {
        spyOn(registryService, 'getActiveMetadataSchema').and.returnValue(observableOf(undefined));
        component.onSubmit();
        fixture.detectChanges();
      });

      it('should emit a new schema using the correct values', async () => {
        await fixture.whenStable();
        expect(component.submitForm.emit).toHaveBeenCalledWith(expected);
      });
    });

    describe('with an active schema', () => {
      const expectedWithId = Object.assign(new MetadataSchema(), {
        id: 1,
        namespace: namespace,
        prefix: prefix,
      } as MetadataSchema);

      beforeEach(() => {
        spyOn(registryService, 'getActiveMetadataSchema').and.returnValue(observableOf(expectedWithId));
        component.onSubmit();
        fixture.detectChanges();
      });

      it('should edit the existing schema using the correct values', async () => {
        await fixture.whenStable();
        expect(component.submitForm.emit).toHaveBeenCalledWith(expectedWithId);
      });
    });
  });
});