test: add bun workspace tests

examples/workspace/BUILD.bazel

@@ -0,0 +1,22 @@
+load("//bun:defs.bzl", "bun_bundle", "ts_library")
+
+package(default_visibility = ["//visibility:public"])
+
+exports_files([
+    "README.md",
+    "package.json",
+    "packages/pkg-a/package.json",
+    "packages/pkg-b/package.json",
+])
+
+ts_library(
+    name = "pkg_a_lib",
+    srcs = ["packages/pkg-a/index.ts"],
+)
+
+bun_bundle(
+    name = "pkg_b_bundle",
+    entry_points = ["packages/pkg-b/main.ts"],
+    deps = [":pkg_a_lib"],
+    target = "bun",
+)

examples/workspace/README.md

@@ -0,0 +1,14 @@
+# workspace example
+
+Minimal Bun workspace-style layout with two packages:
+
+- `@workspace/pkg-a`: exports a string helper
+- `@workspace/pkg-b`: imports from `pkg-a` and prints the message
+
+The workspace root also defines a Bun `catalog` pin for `lodash`, and both packages consume it via `"lodash": "catalog:"` to keep versions consistent across packages.
+
+This example demonstrates building a target from a workspace-shaped directory tree with Bazel:
+
+```bash
+bazel build //examples/workspace:pkg_b_bundle
+```

examples/workspace/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "workspace-root",
+  "private": true,
+  "workspaces": [
+    "packages/*"
+  ],
+  "catalog": {
+    "lodash": "^4.17.21"
+  }
+}

examples/workspace/packages/pkg-a/index.ts

@@ -0,0 +1,3 @@
+export function workspaceMessage(): string {
+  return "workspace-pkg-a";
+}

examples/workspace/packages/pkg-a/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@workspace/pkg-a",
+  "version": "1.0.0",
+  "main": "index.ts",
+  "dependencies": {
+    "lodash": "catalog:"
+  }
+}

examples/workspace/packages/pkg-b/main.ts

@@ -0,0 +1,3 @@
+import { workspaceMessage } from "../pkg-a/index";
+
+console.log(`hello-${workspaceMessage()}`);

examples/workspace/packages/pkg-b/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@workspace/pkg-b",
+  "version": "1.0.0",
+  "dependencies": {
+    "@workspace/pkg-a": "workspace:*",
+    "lodash": "catalog:"
+  }
+}

tests/integration_test/BUILD.bazel

@@ -13,6 +13,28 @@ sh_test(
     ],
 )
 
+sh_test(
+    name = "examples_workspace_bundle_e2e_test",
+    srcs = ["examples_workspace_bundle_e2e_test.sh"],
+    args = ["$(location //examples/workspace:pkg_b_bundle)"],
+    data = ["//examples/workspace:pkg_b_bundle"],
+)
+
+sh_test(
+    name = "examples_workspace_catalog_shape_test",
+    srcs = ["examples_workspace_catalog_shape_test.sh"],
+    args = [
+        "$(location //examples/workspace:package.json)",
+        "$(location //examples/workspace:packages/pkg-a/package.json)",
+        "$(location //examples/workspace:packages/pkg-b/package.json)",
+    ],
+    data = [
+        "//examples/workspace:package.json",
+        "//examples/workspace:packages/pkg-a/package.json",
+        "//examples/workspace:packages/pkg-b/package.json",
+    ],
+)
+
 sh_test(
     name = "repo_all_targets_test",
     srcs = ["repo_all_targets_test.sh"],

tests/integration_test/examples_workspace_bundle_e2e_test.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+bundle_file="$1"
+
+[[ -f ${bundle_file} ]]
+grep -Eq 'hello-workspace-pkg-a|workspace-pkg-a' "${bundle_file}"

tests/integration_test/examples_workspace_catalog_shape_test.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+root_package_json="$1"
+pkg_a_package_json="$2"
+pkg_b_package_json="$3"
+
+grep -Eq '"catalog"[[:space:]]*:[[:space:]]*\{' "${root_package_json}"
+grep -Eq '"lodash"[[:space:]]*:[[:space:]]*"\^4\.17\.21"' "${root_package_json}"
+grep -Eq '"lodash"[[:space:]]*:[[:space:]]*"catalog:"' "${pkg_a_package_json}"
+grep -Eq '"lodash"[[:space:]]*:[[:space:]]*"catalog:"' "${pkg_b_package_json}"