6 files changed, 40 insertions, 0 deletions
diff --git a/tests/specs/npm/workers/__test__.jsonc b/tests/specs/npm/workers/__test__.jsonc
new file mode 100644
index 000000000..f2066c17f
--- /dev/null
+++ b/tests/specs/npm/workers/__test__.jsonc
@@ -0,0 +1,5 @@
+{
+  "tempDir": true,
+  "args": "run -A --quiet --lock=deno.lock main.ts",
+  "output": "main.out"
+}
diff --git a/tests/specs/npm/workers/main.out b/tests/specs/npm/workers/main.out
new file mode 100644
index 000000000..55ff51cd3
--- /dev/null
+++ b/tests/specs/npm/workers/main.out
@@ -0,0 +1,5 @@
+[UNORDERED_START]
+1
+2
+3
+[UNORDERED_END]
diff --git a/tests/specs/npm/workers/main.ts b/tests/specs/npm/workers/main.ts
new file mode 100644
index 000000000..f51cf4d90
--- /dev/null
+++ b/tests/specs/npm/workers/main.ts
@@ -0,0 +1,9 @@
+new Worker(new URL("./worker1.ts", import.meta.url), {
+  type: "module",
+});
+new Worker(new URL("./worker2.ts", import.meta.url), {
+  type: "module",
+});
+new Worker(new URL("./worker3.ts", import.meta.url), {
+  type: "module",
+});
diff --git a/tests/specs/npm/workers/worker1.ts b/tests/specs/npm/workers/worker1.ts
new file mode 100644
index 000000000..1cdc91d56
--- /dev/null
+++ b/tests/specs/npm/workers/worker1.ts
@@ -0,0 +1,9 @@
+import "npm:chalk@4";
+import "npm:react@18.2";
+import "npm:preact@10.19";
+import "npm:ajv";
+import "npm:has";
+import "npm:picocolors";
+
+console.log(1);
+self.close();
diff --git a/tests/specs/npm/workers/worker2.ts b/tests/specs/npm/workers/worker2.ts
new file mode 100644
index 000000000..2495ebacc
--- /dev/null
+++ b/tests/specs/npm/workers/worker2.ts
@@ -0,0 +1,6 @@
+import "npm:@denotest/esm-basic";
+import "npm:@denotest/add";
+import "npm:@denotest/subtract";
+
+console.log(2);
+self.close();
diff --git a/tests/specs/npm/workers/worker3.ts b/tests/specs/npm/workers/worker3.ts
new file mode 100644
index 000000000..ae18d6aa9
--- /dev/null
+++ b/tests/specs/npm/workers/worker3.ts
@@ -0,0 +1,6 @@
+import "npm:@denotest/subtract";
+import "npm:@denotest/add";
+import "npm:@denotest/esm-basic";
+
+console.log(3);
+self.close();