1 files changed, 52 insertions, 0 deletions
diff --git a/src/pybind/mgr/dashboard/frontend/src/app/shared/components/sparkline/sparkline.component.spec.ts b/src/pybind/mgr/dashboard/frontend/src/app/shared/components/sparkline/sparkline.component.spec.ts
new file mode 100644
index 000000000..b8e731d6e
--- /dev/null
+++ b/src/pybind/mgr/dashboard/frontend/src/app/shared/components/sparkline/sparkline.component.spec.ts
@@ -0,0 +1,52 @@
+import { NO_ERRORS_SCHEMA, SimpleChange } from '@angular/core';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { DimlessBinaryPipe } from '~/app/shared/pipes/dimless-binary.pipe';
+import { FormatterService } from '~/app/shared/services/formatter.service';
+import { configureTestBed } from '~/testing/unit-test-helper';
+import { SparklineComponent } from './sparkline.component';
+
+describe('SparklineComponent', () => {
+  let component: SparklineComponent;
+  let fixture: ComponentFixture<SparklineComponent>;
+
+  configureTestBed({
+    declarations: [SparklineComponent],
+    schemas: [NO_ERRORS_SCHEMA],
+    providers: [DimlessBinaryPipe, FormatterService]
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(SparklineComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+    expect(component.options.tooltips.custom).toBeDefined();
+  });
+
+  it('should update', () => {
+    expect(component.datasets).toEqual([{ data: [] }]);
+    expect(component.labels.length).toBe(0);
+
+    component.data = [11, 22, 33];
+    component.ngOnChanges({ data: new SimpleChange(null, component.data, false) });
+
+    expect(component.datasets).toEqual([{ data: [11, 22, 33] }]);
+    expect(component.labels.length).toBe(3);
+  });
+
+  it('should not transform the label, if not isBinary', () => {
+    component.isBinary = false;
+    const result = component.options.tooltips.callbacks.label({ yLabel: 1024 });
+    expect(result).toBe(1024);
+  });
+
+  it('should transform the label, if isBinary', () => {
+    component.isBinary = true;
+    const result = component.options.tooltips.callbacks.label({ yLabel: 1024 });
+    expect(result).toBe('1 KiB');
+  });
+});