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56 lines
2.6 KiB
TypeScript
56 lines
2.6 KiB
TypeScript
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import { ORDINAL_COMPARER, IGNORE_CASE_COMPARER } from "@/utils/comparison/string-comparer";
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describe("ORDINAL_COMPARER", () => {
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test("compares two strings using case-sensitive ordinal comparison", () => {
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expect(ORDINAL_COMPARER("test", "test")).toBe(0);
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expect(ORDINAL_COMPARER("Test", "test")).toBeLessThan(0);
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expect(ORDINAL_COMPARER("test", "Test")).toBeGreaterThan(0);
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expect(ORDINAL_COMPARER("test", "testing")).toBeLessThan(0);
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expect(ORDINAL_COMPARER("testing", "test")).toBeGreaterThan(0);
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});
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test("treats undefined as smaller than any other value", () => {
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expect(ORDINAL_COMPARER(undefined, "test")).toBeLessThan(0);
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expect(ORDINAL_COMPARER(undefined, null)).toBeLessThan(0);
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expect(ORDINAL_COMPARER(undefined, undefined)).toBe(0);
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});
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test("treats null as smaller than any other value except undefined", () => {
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expect(ORDINAL_COMPARER(null, "test")).toBeLessThan(0);
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expect(ORDINAL_COMPARER(null, undefined)).toBeGreaterThan(0);
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expect(ORDINAL_COMPARER(null, null)).toBe(0);
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});
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});
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describe("IGNORE_CASE_COMPARER", () => {
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test("compares two strings using case-insensitive ordinal comparison", () => {
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expect(IGNORE_CASE_COMPARER("A", "a")).toBe(0);
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expect(IGNORE_CASE_COMPARER("a", "B")).toBeLessThan(0);
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expect(IGNORE_CASE_COMPARER("A", "b")).toBeLessThan(0);
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expect(IGNORE_CASE_COMPARER("A", "B")).toBeLessThan(0);
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expect(IGNORE_CASE_COMPARER("B", "a")).toBeGreaterThan(0);
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expect(IGNORE_CASE_COMPARER("b", "A")).toBeGreaterThan(0);
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expect(IGNORE_CASE_COMPARER("B", "A")).toBeGreaterThan(0);
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});
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test("ignores case differences when comparing strings", () => {
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expect(IGNORE_CASE_COMPARER("test", "test")).toBe(0);
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expect(IGNORE_CASE_COMPARER("Test", "test")).toBe(0);
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expect(IGNORE_CASE_COMPARER("TEST", "test")).toBe(0);
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expect(IGNORE_CASE_COMPARER("test", "TEST")).toBe(0);
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expect(IGNORE_CASE_COMPARER("Test", "TEST")).toBe(0);
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});
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test("treats undefined as smaller than any other value", () => {
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expect(IGNORE_CASE_COMPARER(undefined, "test")).toBeLessThan(0);
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expect(IGNORE_CASE_COMPARER(undefined, null)).toBeLessThan(0);
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expect(IGNORE_CASE_COMPARER(undefined, undefined)).toBe(0);
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});
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test("treats null as smaller than any other value except undefined", () => {
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expect(IGNORE_CASE_COMPARER(null, "test")).toBeLessThan(0);
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expect(IGNORE_CASE_COMPARER(null, undefined)).toBeGreaterThan(0);
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expect(IGNORE_CASE_COMPARER(null, null)).toBe(0);
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});
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});
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