Adds Map block unit tests

src/app/blocks/map-block/map-block.component.spec.ts

@@ -0,0 +1,163 @@
+import { MapBlockComponent } from "./map-block.component";
+import { ComponentFixture, TestBed } from "@angular/core/testing";
+import { of } from "rxjs";
+import { geoJSON } from "leaflet";
+
+const mockGeoJsonData = {
+  type: "FeatureCollection",
+  features: [
+    {
+      type: "Feature",
+      geometry: {
+        type: "Polygon",
+        coordinates: [
+          [
+            [-5.0, 52.0],
+            [-4.0, 52.0],
+            [-4.0, 53.0],
+            [-5.0, 53.0],
+            [-5.0, 52.0],
+          ],
+        ],
+      },
+      properties: {
+        name: "Mock Country",
+      },
+    },
+  ],
+};
+
+describe("MapBlockComponent", () => {
+  let component: MapBlockComponent;
+  let fixture: ComponentFixture<MapBlockComponent>;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      declarations: [MapBlockComponent],
+    }).compileComponents();
+
+    fixture = TestBed.createComponent(MapBlockComponent);
+    component = fixture.componentInstance;
+  });
+
+  it("should create", () => {
+    expect(component).toBeTruthy();
+  });
+
+  it("should handle missing lat/long values if country is provided", (done) => {
+    const mockResponse = new Response(JSON.stringify(mockGeoJsonData), {
+      status: 200,
+      headers: { "Content-type": "application/json" },
+    });
+
+    spyOn(window, "fetch").and.returnValue(Promise.resolve(mockResponse));
+
+    const data = [{ country: "GBR", label: "United Kingdom" }];
+    component.onData(data, false);
+
+    setTimeout(() => {
+      try {
+        expect(component.layers.length).toBe(1); // Should create a single layer for the country
+        done();
+      } catch (error) {
+        done.fail(error);
+      }
+    }, 100); // Allow async operations to complete
+  });
+
+  it("should apply custom styles to country areas", () => {
+    component.onConfigUpdate({
+      countryStyle: { color: "red", fillColor: "pink" },
+    });
+    expect(component.countryStyle.color).toBe("red");
+    expect(component.countryStyle.fillColor).toBe("pink");
+  });
+
+  it("should create a custom marker icon with sanitised HTML", () => {
+    const data = [
+      {
+        lat: `51.5074`,
+        long: `-0.1278`,
+        label: "London",
+        customPin: '<span class="test">Test</span>',
+      },
+    ];
+    component.onData(data, false);
+    expect(component.layers[0].options.icon.options.html).toContain(
+      '<span class="test">Test</span>'
+    );
+  });
+
+  it("should handle both lat/long and country in the same object", (done) => {
+    const mockResponse = new Response(JSON.stringify(mockGeoJsonData), {
+      status: 200,
+      headers: { "Content-type": "application/json" },
+    });
+
+    spyOn(window, "fetch").and.returnValue(Promise.resolve(mockResponse));
+
+    const data = [
+      {
+        country: "GBR",
+        lat: `51.5074`,
+        long: `-0.1278`,
+        label: "London, United Kingdom",
+        customPin: "🇬🇧",
+      },
+    ];
+    component.onData(data, false);
+
+    setTimeout(() => {
+      try {
+        expect(component.layers.length).toBe(2); // Should create layers for both the pin and the country
+        done();
+      } catch (error) {
+        done.fail(error);
+      }
+    }, 100); // Allow async operations to complete
+  });
+
+  it("should update map height and zoom level based on configuration", () => {
+    component.onConfigUpdate({ height: 600, zoom: 10 });
+    expect(component.height).toBe(600);
+    expect(component.options.zoom).toBe(10);
+  });
+
+  it("should handle empty data input", () => {
+    component.onData([], false);
+    expect(component.layers.length).toBe(0); // No layers should be created
+  });
+
+  it("should create a custom marker icon with plain text", () => {
+    const data = [
+      {
+        lat: `51.5074`,
+        long: `-0.1278`,
+        label: "London",
+        customPin: "📍",
+      },
+    ];
+    component.onData(data, false);
+    expect(component.layers[0].options.icon.options.html).toContain("📍");
+  });
+
+  it("should use cached GeoJSON data if available", (done) => {
+    const countryCode = "GBR";
+    component.countryCache[countryCode] = mockGeoJsonData;
+
+    const spyFetch = spyOn(window, "fetch");
+
+    const data = [{ country: countryCode, label: "United Kingdom" }];
+    component.onData(data, false);
+
+    setTimeout(() => {
+      try {
+        expect(spyFetch).not.toHaveBeenCalled(); // Fetch should not be called if data is cached
+        expect(component.layers.length).toBe(1); // Should create a single layer for the country
+        done();
+      } catch (error) {
+        done.fail(error);
+      }
+    }, 100); // Allow async operations to complete
+  });
+});