1 files changed, 50 insertions, 1 deletions
diff --git a/test/js/third_party/esbuild/esbuild-test.js b/test/js/third_party/esbuild/esbuild-test.js
index beb34b283..09152246b 100644
--- a/test/js/third_party/esbuild/esbuild-test.js
+++ b/test/js/third_party/esbuild/esbuild-test.js
@@ -1,4 +1,4 @@
-import { transform, transformSync } from "esbuild";
+import { build, buildSync, transform, transformSync } from "esbuild";
 
 {
   const result = await transform("console.log('hello world')", {
@@ -34,4 +34,53 @@ import { transform, transformSync } from "esbuild";
   }
 }
 
+{
+  const result = await build({
+    stdin: {
+      "contents": "console.log('hello world')",
+      "loader": "js",
+      "sourcefile": "index.js",
+    },
+    write: false,
+    target: "node12",
+  });
+  if (result.outputFiles[0].text !== 'console.log("hello world");\n') {
+    throw new Error("Test failed.");
+  }
+}
+
+{
+  const contents = `console.log(${JSON.stringify("a".repeat(1000000))});`;
+
+  for (let i = 0; i < 2; i++) {
+    const result = await build({
+      target: "node12",
+      write: false,
+      stdin: {
+        contents,
+        "loader": "js",
+        "sourcefile": "index.js",
+      },
+    });
+    if (result.outputFiles[0].text !== contents + "\n") {
+      throw new Error("Test failed.");
+    }
+  }
+}
+
+{
+  const result = buildSync({
+    stdin: {
+      "contents": "console.log('hello world')",
+      "loader": "js",
+      "sourcefile": "index.js",
+    },
+    write: false,
+    target: "node12",
+  });
+  if (result.outputFiles[0].text !== 'console.log("hello world");\n') {
+    throw new Error("Test failed.");
+  }
+}
+
 process.exit(0);