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20 lines
795 B
TypeScript
20 lines
795 B
TypeScript
import { isKeyValueIterable } from "@/utils/collections/key-value-iterable";
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describe("isKeyValueIterable", () => {
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test("returns true for objects that have entries", () => {
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expect(isKeyValueIterable(new Map())).toBe(true);
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expect(isKeyValueIterable(new Set())).toBe(true);
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expect(isKeyValueIterable([])).toBe(true);
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expect(isKeyValueIterable({ entries: () => [] })).toBe(true);
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});
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test("returns false for objects that has no entries", () => {
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expect(isKeyValueIterable({})).toBe(false);
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expect(isKeyValueIterable(new Date())).toBe(false);
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});
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test("returns false for null and undefined", () => {
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expect(isKeyValueIterable(null)).toBe(false);
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expect(isKeyValueIterable(undefined)).toBe(false);
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});
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});
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