From 206c593519681a024409d9dd23ef55b1d13d938f Mon Sep 17 00:00:00 2001
From: Geert-Jan Zwiers <geertjanzwiers@protonmail.com>
Date: Thu, 30 Mar 2023 19:40:22 +0200
Subject: fix(coverage): ignore files from npm registry (#18457)

Fixes https://github.com/denoland/deno/issues/17664 and part of
https://github.com/denoland/deno/issues/18454 by excluding files
belonging to npm modules by default in the coverage output.
---
 cli/tests/integration/coverage_tests.rs | 48 +++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

(limited to 'cli/tests/integration/coverage_tests.rs')

diff --git a/cli/tests/integration/coverage_tests.rs b/cli/tests/integration/coverage_tests.rs
index 022f216d8..440d6b17e 100644
--- a/cli/tests/integration/coverage_tests.rs
+++ b/cli/tests/integration/coverage_tests.rs
@@ -277,6 +277,54 @@ fn no_snaps_included(test_name: &str, extension: &str) {
   output.assert_exit_code(0);
 }
 
+#[test]
+fn no_npm_cache_coverage() {
+  let context = TestContext::default();
+  let tempdir = context.deno_dir();
+  let tempdir = tempdir.path().join("cov");
+
+  let output = context
+    .new_command()
+    .args_vec(vec![
+      "test".to_string(),
+      "--quiet".to_string(),
+      "--allow-read".to_string(),
+      format!("--coverage={}", tempdir.to_str().unwrap()),
+      format!("coverage/no_npm_coverage/no_npm_coverage_test.ts"),
+    ])
+    .run();
+
+  output.assert_exit_code(0);
+  output.skip_output_check();
+
+  let output = context
+    .new_command()
+    .args_vec(vec![
+      "coverage".to_string(),
+      format!("{}/", tempdir.to_str().unwrap()),
+    ])
+    .split_output()
+    .run();
+
+  // Verify there's no "Check" being printed
+  assert!(output.stderr().is_empty());
+
+  let actual = util::strip_ansi_codes(output.stdout()).to_string();
+
+  let expected = fs::read_to_string(
+    util::testdata_path().join("coverage/no_npm_coverage/expected.out"),
+  )
+  .unwrap();
+
+  if !util::wildcard_match(&expected, &actual) {
+    println!("OUTPUT\n{actual}\nOUTPUT");
+    println!("EXPECTED\n{expected}\nEXPECTED");
+    panic!("pattern match failed");
+  }
+
+  output.assert_exit_code(0);
+}
+
 #[test]
 fn no_transpiled_lines() {
   let context = TestContext::default();
-- 
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