Support line ranges in assistant file links (#1067)

packages/app/src/workspace/file-open/index.test.ts

@@ -0,0 +1,63 @@
+import { describe, expect, it } from "vitest";
+import {
+  createWorkspaceFileTabTarget,
+  normalizeWorkspaceFileLocation,
+  workspaceFileLocationsEqual,
+} from ".";
+
+describe("normalizeWorkspaceFileLocation", () => {
+  it("normalizes paths and valid line ranges", () => {
+    expect(
+      normalizeWorkspaceFileLocation({
+        path: "src\\app.ts",
+        lineStart: 12.8,
+        lineEnd: 20.2,
+      }),
+    ).toEqual({
+      path: "src/app.ts",
+      lineStart: 12,
+      lineEnd: 20,
+    });
+  });
+
+  it("drops invalid or backwards line ranges", () => {
+    expect(normalizeWorkspaceFileLocation({ path: "src/app.ts", lineStart: -1 })).toEqual({
+      path: "src/app.ts",
+    });
+    expect(
+      normalizeWorkspaceFileLocation({ path: "src/app.ts", lineStart: 20, lineEnd: 12 }),
+    ).toEqual({
+      path: "src/app.ts",
+      lineStart: 20,
+    });
+  });
+
+  it("rejects empty paths", () => {
+    expect(normalizeWorkspaceFileLocation({ path: " " })).toBeNull();
+  });
+});
+
+describe("workspace file tab targets", () => {
+  it("keeps file tab identity separate from line selection", () => {
+    expect(createWorkspaceFileTabTarget({ path: "src/app.ts", lineStart: 12 })).toEqual({
+      kind: "file",
+      path: "src/app.ts",
+      lineStart: 12,
+    });
+  });
+
+  it("compares full location equality", () => {
+    expect(
+      workspaceFileLocationsEqual(
+        { path: "src/app.ts", lineStart: 12 },
+        { path: "src/app.ts", lineStart: 12 },
+      ),
+    ).toBe(true);
+    expect(
+      workspaceFileLocationsEqual(
+        { path: "src/app.ts", lineStart: 12 },
+        { path: "src/app.ts", lineStart: 13 },
+      ),
+    ).toBe(false);
+  });
+});