Release diagram Tools v0.1.0

tests/core/diagram.test.ts

@@ -0,0 +1,37 @@
+import { describe, expect, it } from "vitest";
+import { parseDiagram, renderSvg } from "../../src/core/diagram";
+describe("diagram grammar", () => {
+  it("parses and escapes flowcharts", () => {
+    const d = parseDiagram("flowchart LR\nA[<script>] -->|safe| B{Choice}");
+    expect(d.nodes).toHaveLength(2);
+    const svg = renderSvg(d);
+    expect(svg).toContain("&lt;script&gt;");
+    expect(svg).not.toContain("<script>");
+  });
+  it("supports sequence, class and state", () => {
+    const sequence = parseDiagram(
+      "sequenceDiagram\nparticipant A as Ada\nparticipant B\nA-->>B: hello",
+    );
+    expect(sequence.mode).toBe("sequence");
+    expect(sequence.nodes.map((node) => node.id)).toEqual(["A", "B"]);
+    expect(sequence.edges[0]).toMatchObject({
+      from: "A",
+      to: "B",
+      dashed: true,
+    });
+    expect(
+      parseDiagram("classDiagram\nclass A\nA : +field\nA <|-- B").nodes[0]
+        ?.members,
+    ).toEqual(["+field"]);
+    expect(parseDiagram("stateDiagram-v2\nIdle --> Ready : go").mode).toBe(
+      "state",
+    );
+  });
+  it("diagnoses directives without executing", () => {
+    const d = parseDiagram(
+      "flowchart LR\n%%{init: {}}%%\nclick A https://bad.test\nA-->B",
+    );
+    expect(d.diagnostics).toHaveLength(2);
+    expect(renderSvg(d)).not.toContain("bad.test");
+  });
+});