move to pkg

packages/system/tests/RequestSplitter.test.ts

@@ -0,0 +1,87 @@
+import { ReqFilter } from "../src";
+import { describe, expect } from "@jest/globals";
+import { diffFilters } from "../src/RequestSplitter";
+
+describe("RequestSplitter", () => {
+  test("single filter add value", () => {
+    const a: Array<ReqFilter> = [{ kinds: [0], authors: ["a"] }];
+    const b: Array<ReqFilter> = [{ kinds: [0], authors: ["a", "b"] }];
+    const diff = diffFilters(a, b);
+    expect(diff).toEqual({
+      added: [{ kinds: [0], authors: ["b"] }],
+      removed: [],
+      changed: true,
+    });
+  });
+  test("single filter remove value", () => {
+    const a: Array<ReqFilter> = [{ kinds: [0], authors: ["a"] }];
+    const b: Array<ReqFilter> = [{ kinds: [0], authors: ["b"] }];
+    const diff = diffFilters(a, b);
+    expect(diff).toEqual({
+      added: [{ kinds: [0], authors: ["b"] }],
+      removed: [{ kinds: [0], authors: ["a"] }],
+      changed: true,
+    });
+  });
+  test("single filter change critical key", () => {
+    const a: Array<ReqFilter> = [{ kinds: [0], authors: ["a"], since: 100 }];
+    const b: Array<ReqFilter> = [{ kinds: [0], authors: ["a", "b"], since: 101 }];
+    const diff = diffFilters(a, b);
+    expect(diff).toEqual({
+      added: [{ kinds: [0], authors: ["a", "b"], since: 101 }],
+      removed: [{ kinds: [0], authors: ["a"], since: 100 }],
+      changed: true,
+    });
+  });
+  test("multiple filter add value", () => {
+    const a: Array<ReqFilter> = [
+      { kinds: [0], authors: ["a"] },
+      { kinds: [69], authors: ["a"] },
+    ];
+    const b: Array<ReqFilter> = [
+      { kinds: [0], authors: ["a", "b"] },
+      { kinds: [69], authors: ["a", "c"] },
+    ];
+    const diff = diffFilters(a, b);
+    expect(diff).toEqual({
+      added: [
+        { kinds: [0], authors: ["b"] },
+        { kinds: [69], authors: ["c"] },
+      ],
+      removed: [],
+      changed: true,
+    });
+  });
+  test("multiple filter remove value", () => {
+    const a: Array<ReqFilter> = [
+      { kinds: [0], authors: ["a"] },
+      { kinds: [69], authors: ["a"] },
+    ];
+    const b: Array<ReqFilter> = [
+      { kinds: [0], authors: ["b"] },
+      { kinds: [69], authors: ["c"] },
+    ];
+    const diff = diffFilters(a, b);
+    expect(diff).toEqual({
+      added: [
+        { kinds: [0], authors: ["b"] },
+        { kinds: [69], authors: ["c"] },
+      ],
+      removed: [{ kinds: [0, 69], authors: ["a"] }],
+      changed: true,
+    });
+  });
+  test("add filter", () => {
+    const a: Array<ReqFilter> = [{ kinds: [0], authors: ["a"] }];
+    const b: Array<ReqFilter> = [
+      { kinds: [0], authors: ["a"] },
+      { kinds: [69], authors: ["c"] },
+    ];
+    const diff = diffFilters(a, b);
+    expect(diff).toEqual({
+      added: [{ kinds: [69], authors: ["c"] }],
+      removed: [],
+      changed: true,
+    });
+  });
+});