import { constructWithInjector } from "../../../testing/construct-with-injector";
// Load the implementations that should be tested
import { ChangeDetectorRef, SimpleChanges } from "@angular/core";
import { SamInputMaskComponent } from "./input-mask.component";
import { SamFormService } from "../../form-service";

describe("The Sam Input Mask component", () => {
  let component: SamInputMaskComponent;

  // provide our implementations or mocks to the dependency injector
  beforeEach(() => {
    component = constructWithInjector(
      [
        SamFormService,
        {
          provide: ChangeDetectorRef,
          useValue: { detectChanges: () => {} } as unknown as ChangeDetectorRef,
        },
      ],
      () => new SamInputMaskComponent()
    );
    component.template = "__/__/____";
  });

  it("Should compile", () => {
    expect(true).toBe(true);
  });

  it("Should check for template", () => {
    component.template = null;
    try {
      component.ngOnInit();
      fail();
    } catch (exception) {
      expect(exception.toString()).toContain("No template provided");
    }
  });

  it("test numberToTemplate", () => {
    expect(component.numberToTemplate("12122013")).toBe("12/12/2013");
  });

  it("should test templateToNumber", () => {
    expect(component.templateToNumber("12/12/2013")).toBe("12122013");
  });

  it("should test onFocus", () => {
    component.onHostFocus();
    component.writeValue("12/12/2013");
    component.onFocus();
    expect(component.value).toBe("12122013");
  });

  it("should test onBlur", () => {
    component.writeValue("12122013");
    component.onBlur();
    expect(component.value).toBe("12/12/2013");
  });

  it("should test modelChange", () => {
    component.maxlength = 10;
    component.previousVal = "12/12/201";
    component.onModelChange("12/12/2013");
    expect(component.value).toBe("12/12/2013");
    component.onModelChange("");
    expect(component.value).toBe("");
  });

  it("should test that maxlength is always a number", () => {
    try {
      component.maxlength = "10" as unknown as number;
      component.ngOnChanges({
        maxlength: "10",
      } as unknown as SimpleChanges);
      fail();
    } catch (exception) {
      expect(exception.toString()).toContain(
        "Wrong data type passed in for maxlength"
      );
    }
  });
});