Release query Tools v0.1.0

tests/core/data.test.ts

@@ -0,0 +1,29 @@
+import { describe, expect, it } from "vitest";
+import { parseData } from "../../src/core/data";
+describe("data parser", () => {
+  it("parses CSV inference and NDJSON", () => {
+    expect(parseData("name,n\nAda,3", "csv").rows[0]).toEqual({
+      name: "Ada",
+      n: 3,
+    });
+    expect(parseData('{"a":1}\n{"a":2}', "ndjson").rows).toHaveLength(2);
+  });
+  it("converts static XML and rejects entities", () => {
+    expect(
+      parseData(
+        "<items><item id='1'>A</item><item id='2'>B</item></items>",
+        "xml",
+      ).root,
+    ).toEqual({
+      items: {
+        item: [
+          { "@id": "1", "#text": "A" },
+          { "@id": "2", "#text": "B" },
+        ],
+      },
+    });
+    expect(() =>
+      parseData('<!DOCTYPE x [<!ENTITY y "z">]><x>&y;</x>', "xml"),
+    ).toThrow(/entity/iu);
+  });
+});

tests/core/query.test.ts

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+import { describe, expect, it } from "vitest";
+import { parseData } from "../../src/core/data";
+import { runQuery } from "../../src/core/query";
+describe("query engine", () => {
+  const root = parseData(
+    '[{"team":"a","n":2},{"team":"a","n":4},{"team":"b","n":9}]',
+    "json",
+  ).root;
+  it("filters groups aggregates sorts and limits", () => {
+    expect(
+      runQuery(
+        root,
+        "SELECT team, COUNT(*) AS count, AVG(n) AS mean WHERE n >= 2 GROUP BY team ORDER BY mean DESC LIMIT 2",
+        "sql",
+      ).rows,
+    ).toEqual([
+      { team: "b", count: 1, mean: 9 },
+      { team: "a", count: 2, mean: 3 },
+    ]);
+  });
+  it("supports bounded path navigation and filtering", () => {
+    expect(runQuery(root, "$[?(@.n >= 4)].team", "path").value).toEqual([
+      "a",
+      "b",
+    ]);
+  });
+  it("rejects unsupported syntax rather than evaluating it", () => {
+    expect(() => runQuery(root, "SELECT eval(n)", "sql")).toThrow(
+      /Invalid SELECT/iu,
+    );
+    expect(() => runQuery(root, "$..team", "path")).toThrow(
+      /Unsupported path/iu,
+    );
+  });
+});