Add tests for the filter parser

api/tests/misc/filter.test.ts

@@ -0,0 +1,126 @@
+import { describe, expect, it } from "bun:test";
+import type { ParjsFailure } from "parjs/internal";
+import { type Expression, expression } from "~/models/utils/filters";
+
+function parse(
+	filter: string,
+): { ok: true; value: Expression } | { ok: false } {
+	const ret = expression.parse(filter);
+	if (ret.isOk) return { ok: true, value: ret.value };
+	const fail = ret as ParjsFailure;
+	console.log(fail.toString());
+	return {
+		ok: false,
+		reason: fail.reason,
+		trace: {
+			...fail.trace,
+			location: fail.trace.location,
+			leftover: fail.trace.input.substring(fail.trace.location.column),
+		},
+	} as any;
+}
+
+describe("Parse filter", () => {
+	it("Handle eq", () => {
+		const ret = parse("status eq finished");
+		expect(ret).toMatchObject({
+			ok: true,
+			value: {
+				type: "op",
+				operator: "eq",
+				property: "status",
+				value: { type: "enum", value: "finished" },
+			},
+		});
+	});
+	it("Handle lt", () => {
+		const ret = parse("rating lt 10");
+		expect(ret).toMatchObject({
+			ok: true,
+			value: {
+				type: "op",
+				operator: "lt",
+				property: "rating",
+				value: { type: "int", value: 10 },
+			},
+		});
+	});
+	it("Handle dates", () => {
+		const ret = parse("airDate ge 2022-10-12");
+		expect(ret).toMatchObject({
+			ok: true,
+			value: {
+				type: "op",
+				operator: "ge",
+				property: "airDate",
+				value: { type: "date", value: "2022-10-12" },
+			},
+		});
+	});
+	it("Handle not", () => {
+		const ret = parse("not rating lt 10");
+		expect(ret).toMatchObject({
+			ok: true,
+			value: {
+				type: "not",
+				expression: {
+					type: "op",
+					operator: "lt",
+					property: "rating",
+					value: { type: "int", value: 10 },
+				},
+			},
+		});
+	});
+	it("Handle top level brackets", () => {
+		const ret = parse("(rating lt 10)");
+		expect(ret).toMatchObject({
+			ok: true,
+			value: {
+				type: "op",
+				operator: "lt",
+				property: "rating",
+				value: { type: "int", value: 10 },
+			},
+		});
+	});
+	it("Handle top level brackets with not", () => {
+		const ret = parse("(not rating lt 10)");
+		expect(ret).toMatchObject({
+			ok: true,
+			value: {
+				type: "not",
+				expression: {
+					type: "op",
+					operator: "lt",
+					property: "rating",
+					value: { type: "int", value: 10 },
+				},
+			},
+		});
+	});
+	it("Handle and", () => {
+		const ret = parse("not rating lt 10 and rating lt 20");
+		expect(ret).toMatchObject({
+			ok: true,
+			value: {
+				type: "and",
+				lhs: {
+					type: "not",
+					expression: {
+						type: "op",
+						operator: "lt",
+						property: "rating",
+						value: { type: "int", value: 10 },
+					},
+				},
+				rhs: {
+					type: "op",
+					operator: "lt",
+					property: "rating",
+					value: { type: "int", value: 20 },
+				},
+			},
+		});
+	});
+});