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rea/tests/acceptance/applications/javascriptDependencyMainHostPaths.test.ts

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import { expect } from "vitest";
import { createTestTempDirectory } from "../../fixtures/temporaryDirectory.js";
import { cliTest } from "../../support/cli/cliFixture.js";
import { analyzeJavaScriptDirectory } from "../../support/cli/javascriptApplication.js";
import { writeFixtureFiles } from "../../support/javascriptApplicationFixture.js";
cliTest.for(
(["CLI", "stdio MCP"] as const).flatMap((surface) =>
[
{ main: "/shared/window.cjs", status: "unavailable" },
{ main: "../../shared/window.cjs", status: "resolved" },
{ main: "sub\\entry.cjs", status: "unavailable" },
].map((testCase) => ({ surface, ...testCase })),
),
)(
"keeps dependency main $main in its lookup domain through $surface",
async ({ surface, main, status }, { cli }) => {
const root = await createTestTempDirectory("rea-dependency-host-main-");
await writeFixtureFiles(root, {
"a/package.json": '{"main":"main.cjs"}',
"a/main.cjs":
'throw new Error("Static fixture must never execute");require("fixture");',
"a/index.html": "first application page",
"b/package.json": '{"main":"main.cjs"}',
"b/main.cjs":
'throw new Error("Static fixture must never execute");require("../shared/window.cjs");',
"b/index.html": "second application page",
"node_modules/fixture/package.json": JSON.stringify({ main }),
...(main.includes("\\")
? {
"node_modules/fixture/sub/entry.cjs":
'throw new Error("Static fixture must never execute");require("../../../shared/window.cjs");',
}
: {}),
"shared/window.cjs":
'throw new Error("Static fixture must never execute");const {BrowserWindow}=require("electron");new BrowserWindow().loadFile("index.html");',
"shared/index.html": "source-relative decoy",
"index.html": "artifact-root decoy",
});
const { graph, statistics } = await analyzeJavaScriptDirectory(
surface,
cli,
root,
);
expect(statistics.parse_failures).toBe(0);
const imports = graph.edges.filter(
({ relation, properties }) =>
relation === "imports" && properties.specifier === "fixture",
);
expect(imports.length).toBeGreaterThan(0);
for (const edge of imports)
expect(edge.properties).toMatchObject({
resolution_status: status,
resolved_path: status === "resolved" ? "shared/window.cjs" : null,
});
const roles = graph.nodes.filter(
({ kind }) => kind === "electron-renderer",
);
expect(roles).toHaveLength(1);
expect(
graph.edges.filter(
({ relation, source_node_id }) =>
relation === "maps_to" && source_node_id === roles[0]?.node_id,
),
).toEqual([]);
},
);