import { test, expect, describe } from "vitest";
import { partitionModulesByChanges, hash } from "./components.js";
import { Bundle, BundleHash } from "../../bundler/index.js";
describe("partitionModulesByChanges", () => {
const createBundle = (
path: string,
source: string,
environment: "node" | "isolate" = "isolate",
sourceMap?: string,
): Bundle => ({
path,
source,
environment,
sourceMap,
});
const createBundleHash = (bundle: Bundle): BundleHash => ({
path: bundle.path,
hash: hash(bundle),
environment: bundle.environment,
});
test("existing modules exist, but all modules are changed", () => {
const oldFunctions = [
createBundle("function1.js", "console.log('old1')"),
createBundle("function2.js", "console.log('old2')"),
createBundle("function3.js", "console.log('old3')"),
];
const newFunctions = [
createBundle("function1.js", "console.log('new1')"),
createBundle("function2.js", "console.log('new2')"),
createBundle("function3.js", "console.log('new3')"),
];
const remoteHashesByPath = new Map(
oldFunctions.map((f) => [f.path, createBundleHash(f)]),
);
const result = partitionModulesByChanges(newFunctions, remoteHashesByPath);
expect(result.unchangedModuleHashes).toEqual([]);
expect(result.changedModules).toEqual(newFunctions);
});
test("no existing modules", () => {
const newFunctions = [
createBundle("function1.js", "console.log('new1')"),
createBundle("function2.js", "console.log('new2')"),
];
const remoteHashesByPath = new Map<string, BundleHash>();
const result = partitionModulesByChanges(newFunctions, remoteHashesByPath);
expect(result.unchangedModuleHashes).toEqual([]);
expect(result.changedModules).toEqual(newFunctions);
});
test("all files are the exact same", () => {
const functions = [
createBundle("function1.js", "console.log('same1')"),
createBundle("function2.js", "console.log('same2')"),
createBundle("function3.js", "console.log('same3')"),
];
const remoteHashesByPath = new Map(
functions.map((f) => [f.path, createBundleHash(f)]),
);
const result = partitionModulesByChanges(functions, remoteHashesByPath);
expect(result.changedModules).toEqual([]);
// Verify the unchanged module hashes have the expected structure
expect(result.unchangedModuleHashes).toEqual([
{
path: "function1.js",
environment: "isolate",
sha256: hash(functions[0]),
},
{
path: "function2.js",
environment: "isolate",
sha256: hash(functions[1]),
},
{
path: "function3.js",
environment: "isolate",
sha256: hash(functions[2]),
},
]);
});
test("some existing modules are the same and some are different", () => {
const oldFunctions = [
createBundle("function1.js", "console.log('same1')"),
createBundle("function2.js", "console.log('old2')"),
createBundle("function3.js", "console.log('same3')"),
];
const newFunctions = [
createBundle("function1.js", "console.log('same1')"),
createBundle("function2.js", "console.log('new2')"),
createBundle("function3.js", "console.log('same3')"),
];
const remoteHashesByPath = new Map(
oldFunctions.map((f) => [f.path, createBundleHash(f)]),
);
const result = partitionModulesByChanges(newFunctions, remoteHashesByPath);
expect(result.unchangedModuleHashes.map((m) => m.path)).toEqual([
"function1.js",
"function3.js",
]);
expect(result.changedModules.map((m) => m.path)).toEqual(["function2.js"]);
});
test("some existing modules are the same, but some are being deleted", () => {
const oldFunctions = [
createBundle("function1.js", "console.log('same1')"),
createBundle("function2.js", "console.log('deleted')"),
createBundle("function3.js", "console.log('same3')"),
];
const newFunctions = [
createBundle("function1.js", "console.log('same1')"),
createBundle("function3.js", "console.log('same3')"),
];
const remoteHashesByPath = new Map(
oldFunctions.map((f) => [f.path, createBundleHash(f)]),
);
const result = partitionModulesByChanges(newFunctions, remoteHashesByPath);
expect(result.changedModules).toEqual([]);
expect(result.unchangedModuleHashes.map((m) => m.path)).toEqual([
"function1.js",
"function3.js",
]);
});
test("modules exist, but all modules are being deleted", () => {
const oldFunctions = [
createBundle("function1.js", "console.log('deleted1')"),
createBundle("function2.js", "console.log('deleted2')"),
createBundle("function3.js", "console.log('deleted3')"),
];
const newFunctions: Bundle[] = [];
const remoteHashesByPath = new Map(
oldFunctions.map((f) => [f.path, createBundleHash(f)]),
);
const result = partitionModulesByChanges(newFunctions, remoteHashesByPath);
expect(result.unchangedModuleHashes).toEqual([]);
expect(result.changedModules).toEqual([]);
});
test("modules with different environments are considered changed", () => {
const oldFunctions = [
createBundle("function1.js", "console.log('same')", "node"),
];
const newFunctions = [
createBundle("function1.js", "console.log('same')", "isolate"),
];
const remoteHashesByPath = new Map(
oldFunctions.map((f) => [f.path, createBundleHash(f)]),
);
const result = partitionModulesByChanges(newFunctions, remoteHashesByPath);
expect(result.unchangedModuleHashes).toEqual([]);
expect(result.changedModules).toHaveLength(1);
expect(result.changedModules[0].path).toBe("function1.js");
});
test("modules with different source maps are considered changed", () => {
const oldFunctions = [
createBundle("function1.js", "console.log('same')", "isolate", "old-map"),
];
const newFunctions = [
createBundle("function1.js", "console.log('same')", "isolate", "new-map"),
];
const remoteHashesByPath = new Map(
oldFunctions.map((f) => [f.path, createBundleHash(f)]),
);
const result = partitionModulesByChanges(newFunctions, remoteHashesByPath);
expect(result.unchangedModuleHashes).toEqual([]);
expect(result.changedModules).toHaveLength(1);
expect(result.changedModules[0].path).toBe("function1.js");
});
test("new modules, changed modules, unchanged modules, and deleted modules", () => {
const oldFunctions = [
createBundle("unchanged.js", "console.log('unchanged')"),
createBundle("changed.js", "console.log('old')"),
createBundle("deleted.js", "console.log('deleted')"),
];
const newFunctions = [
createBundle("unchanged.js", "console.log('unchanged')"),
createBundle("changed.js", "console.log('new')"),
createBundle("new.js", "console.log('new')"),
];
const remoteHashesByPath = new Map(
oldFunctions.map((f) => [f.path, createBundleHash(f)]),
);
const result = partitionModulesByChanges(newFunctions, remoteHashesByPath);
expect(result.unchangedModuleHashes.map((m) => m.path)).toEqual([
"unchanged.js",
]);
expect(result.changedModules.map((m) => m.path).sort()).toEqual([
"changed.js",
"new.js",
]);
});
});
