feat(design): add form label directive (#529)

libs/design/src/atoms/form/form-label/form-label.directive.spec.ts

@@ -0,0 +1,45 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { Component, DebugElement } from '@angular/core';
+import { By } from '@angular/platform-browser';
+import { DaffFormLabelDirective } from './form-label.directive';
+
+@Component({
+  template: `<div daffFormLabel>Label</div>`
+})
+
+class WrapperComponent {}
+
+describe('DaffFormLabelDirective', () => {
+  let wrapper: WrapperComponent;
+  let de: DebugElement;
+  let fixture: ComponentFixture<WrapperComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        DaffFormLabelDirective,
+        WrapperComponent
+      ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(WrapperComponent);
+    wrapper = fixture.componentInstance;
+    de = fixture.debugElement.query(By.css('[daffFormLabel]'));
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(wrapper).toBeTruthy();
+  });
+
+  describe('[daffFormLabel]', () => {
+    it('should add a class of "daff-form-label" to the host element', () => {
+      expect(de.classes).toEqual(jasmine.objectContaining({
+        'daff-form-label': true,
+      }));
+    });
+  });
+});

libs/design/src/atoms/form/form-label/form-label.directive.ts

@@ -0,0 +1,11 @@
+import { Directive, HostBinding } from '@angular/core';
+
+@Directive({
+  selector: '[daffFormLabel]'
+})
+
+export class DaffFormLabelDirective {
+
+  @HostBinding('class.daff-form-label') class = true;
+
+}

libs/design/src/atoms/form/form-label/form-label.module.ts

@@ -0,0 +1,15 @@
+import { NgModule } from '@angular/core';
+import { CommonModule } from '@angular/common';
+
+import { DaffFormLabelDirective } from '../form-label/form-label.directive';
+
+@NgModule({
+  exports: [
+    DaffFormLabelDirective
+  ],
+  declarations: [
+    DaffFormLabelDirective
+  ]
+})
+
+export class DaffFormLabelModule {}