diff --git a/test/fixtures/basic-comments/expected.json b/test/fixtures/basic-comments/expected.json
new file mode 100644
index 0000000..5dbfe9f
--- /dev/null
+++ b/test/fixtures/basic-comments/expected.json
@@ -0,0 +1 @@
+{ "node": "v20" }
diff --git a/test/fixtures/basic-invalid/expected.json b/test/fixtures/basic-invalid/expected.json
new file mode 100644
index 0000000..a94f1a0
--- /dev/null
+++ b/test/fixtures/basic-invalid/expected.json
@@ -0,0 +1,4 @@
+[
+	"foo",
+	"bar"
+]
diff --git a/test/fixtures/basic-with-comment/expected.json b/test/fixtures/basic-with-comment/expected.json
new file mode 100644
index 0000000..56e4a6f
--- /dev/null
+++ b/test/fixtures/basic-with-comment/expected.json
@@ -0,0 +1 @@
+{ "node": "21.2" }
diff --git a/test/fixtures/basic-with-npm/expected.json b/test/fixtures/basic-with-npm/expected.json
new file mode 100644
index 0000000..dede78b
--- /dev/null
+++ b/test/fixtures/basic-with-npm/expected.json
@@ -0,0 +1 @@
+{ "node": "node", "npm": "10" }
diff --git a/test/fixtures/basic/expected.json b/test/fixtures/basic/expected.json
new file mode 100644
index 0000000..5ef732c
--- /dev/null
+++ b/test/fixtures/basic/expected.json
@@ -0,0 +1 @@
+{ "node": "node" }
diff --git a/test/fixtures/duplicate-pairs/expected.json b/test/fixtures/duplicate-pairs/expected.json
new file mode 100644
index 0000000..85ccd70
--- /dev/null
+++ b/test/fixtures/duplicate-pairs/expected.json
@@ -0,0 +1,5 @@
+[
+	"node",
+	"npm=3",
+	"npm=4"
+]
diff --git a/test/fixtures/invalid/expected.json b/test/fixtures/invalid/expected.json
new file mode 100644
index 0000000..832876d
--- /dev/null
+++ b/test/fixtures/invalid/expected.json
@@ -0,0 +1,3 @@
+[
+	"a=b"
+]
diff --git a/test/fixtures/only-comments/expected.json b/test/fixtures/only-comments/expected.json
new file mode 100644
index 0000000..fe51488
--- /dev/null
+++ b/test/fixtures/only-comments/expected.json
@@ -0,0 +1 @@
+[]
diff --git a/test/fixtures/pre-normalized/expected.json b/test/fixtures/pre-normalized/expected.json
new file mode 100644
index 0000000..ad56ba0
--- /dev/null
+++ b/test/fixtures/pre-normalized/expected.json
@@ -0,0 +1,4 @@
+[
+	"node=foo",
+	"npm=bar"
+]
diff --git a/test/index.mjs b/test/index.mjs
index 5a045ba..91fbe9d 100644
--- a/test/index.mjs
+++ b/test/index.mjs
@@ -1,6 +1,6 @@
 import { spawnSync } from 'child_process';
 import { join } from 'path';
-import { readdirSync } from 'fs';
+import { readFileSync, readdirSync } from 'fs';
 
 import test from 'tape';
 
@@ -34,7 +34,7 @@ test('nvmrc', async (t) => {
 		t.test(`fixture ${fixture}`, (st) => {
 			const cwd = join(fixtureDir, fixture);
 
-			const { stdout, status } = spawnSync(`${bin}`, { cwd });
+			const { status, stdout } = spawnSync(`${bin}`, { cwd });
 
 			st.equal(status, 0, 'yields a zero exit code');
 
@@ -42,6 +42,10 @@ test('nvmrc', async (t) => {
 
 			st.doesNotThrow(() => JSON.parse(stripped), `fixture ${fixture} is valid, yields ${stripped.replace(/\n\s*/g, ' ')}`);
 
+			const expected = JSON.parse(`${readFileSync(join(cwd, 'expected.json'))}`);
+
+			st.deepEqual(JSON.parse(stripped), expected, `fixture ${fixture} yields expected result`);
+
 			st.end();
 		});
 	}
@@ -67,6 +71,10 @@ test('nvmrc', async (t) => {
 				'non-commented content parsed:',
 			]);
 
+			const expected = JSON.parse(`${readFileSync(join(cwd, 'expected.json'))}`);
+
+			st.deepEqual(lines.slice(6), expected, `fixture ${fixture} produces expected warning lines`);
+
 			st.end();
 		});
 	}