refactor: move query.spec.ts

app/__test__/core/object/query.spec.ts

@@ -0,0 +1,117 @@
+import { describe, expect, test } from "bun:test";
+import {
+   makeValidator,
+   exp,
+   Expression,
+   isPrimitive,
+   type Primitive,
+} from "../../../src/core/object/query/query";
+
+describe("query", () => {
+   test("isPrimitive", () => {
+      expect(isPrimitive(1)).toBe(true);
+      expect(isPrimitive("1")).toBe(true);
+      expect(isPrimitive(true)).toBe(true);
+      expect(isPrimitive(false)).toBe(true);
+
+      // not primitives
+      expect(isPrimitive(null)).toBe(false);
+      expect(isPrimitive(undefined)).toBe(false);
+      expect(isPrimitive([])).toBe(false);
+      expect(isPrimitive({})).toBe(false);
+      expect(isPrimitive(Symbol("test"))).toBe(false);
+      expect(isPrimitive(new Date())).toBe(false);
+      expect(isPrimitive(new Error())).toBe(false);
+      expect(isPrimitive(new Set())).toBe(false);
+      expect(isPrimitive(new Map())).toBe(false);
+   });
+
+   test("strict expression creation", () => {
+      // @ts-expect-error
+      expect(() => exp()).toThrow();
+      // @ts-expect-error
+      expect(() => exp("")).toThrow();
+      // @ts-expect-error
+      expect(() => exp("invalid")).toThrow();
+      // @ts-expect-error
+      expect(() => exp("$eq")).toThrow();
+      // @ts-expect-error
+      expect(() => exp("$eq", 1)).toThrow();
+      // @ts-expect-error
+      expect(() => exp("$eq", () => null)).toThrow();
+      // @ts-expect-error
+      expect(() => exp("$eq", () => null, 1)).toThrow();
+      expect(
+         exp(
+            "$eq",
+            () => true,
+            () => null,
+         ),
+      ).toBeInstanceOf(Expression);
+   });
+
+   test("$eq is required", () => {
+      expect(() => makeValidator([])).toThrow();
+      expect(() =>
+         makeValidator([
+            exp(
+               "$valid",
+               () => true,
+               () => null,
+            ),
+         ]),
+      ).toThrow();
+      expect(
+         makeValidator([
+            exp(
+               "$eq",
+               () => true,
+               () => null,
+            ),
+         ]),
+      ).toBeDefined();
+   });
+
+   test("validates filter structure", () => {
+      const validator = makeValidator([
+         exp(
+            "$eq",
+            (v: Primitive) => isPrimitive(v),
+            (e, a) => e === a,
+         ),
+         exp(
+            "$like",
+            (v: string) => typeof v === "string",
+            (e, a) => e === a,
+         ),
+      ]);
+
+      // @ts-expect-error intentionally typed as union of given expression keys
+      expect(validator.expressionKeys).toEqual(["$eq", "$like"]);
+
+      // @ts-expect-error "$and" is not allowed
+      expect(() => validator.convert({ $and: {} })).toThrow();
+
+      // @ts-expect-error "$or" must be an object
+      expect(() => validator.convert({ $or: [] })).toThrow();
+
+      // @ts-expect-error "invalid" is not a valid expression key
+      expect(() => validator.convert({ foo: { invalid: "bar" } })).toThrow();
+
+      // @ts-expect-error "invalid" is not a valid expression key
+      expect(() => validator.convert({ foo: { $invalid: "bar" } })).toThrow();
+
+      // @ts-expect-error "null" is not a valid value
+      expect(() => validator.convert({ foo: null })).toThrow();
+
+      // @ts-expect-error only primitives are allowed for $eq
+      expect(() => validator.convert({ foo: { $eq: [] } })).toThrow();
+
+      // @ts-expect-error only strings are allowed for $like
+      expect(() => validator.convert({ foo: { $like: 1 } })).toThrow();
+
+      expect(validator.convert({ foo: "bar" })).toEqual({ foo: { $eq: "bar" } });
+      expect(validator.convert({ foo: { $eq: "bar" } })).toEqual({ foo: { $eq: "bar" } });
+      expect(validator.convert({ foo: { $like: "bar" } })).toEqual({ foo: { $like: "bar" } });
+   });
+});