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add widget test

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This commit is contained in:
Géry Debongnie
2019-01-27 15:12:35 +01:00
parent 6431e555c3
commit d40f88cf50
1 changed files with 11 additions and 1 deletions
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web/static/tests/core/widget.test.ts
+11 -1
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@@ -113,10 +113,20 @@ describe("basic widget properties", () => {
expect(renderCalls).toBe(1); expect(renderCalls).toBe(1);
}); });
test("keep a reference to env", async () => { test("keeps a reference to env", async () => {
const widget = new Widget(env); const widget = new Widget(env);
expect(widget.env).toBe(env); expect(widget.env).toBe(env);
}); });
test("do not remove previously rendered dom if not necessary", async () => {
const widget = new Widget(env);
await widget.mount(fixture);
expect(fixture.innerHTML).toBe(`<div></div>`);
widget.el!.appendChild(document.createElement("span"));
expect(fixture.innerHTML).toBe(`<div><span></span></div>`);
widget.render();
expect(fixture.innerHTML).toBe(`<div><span></span></div>`);
});
}); });
describe("lifecycle hooks", () => { describe("lifecycle hooks", () => {