1 files changed, 63 insertions, 0 deletions
diff --git a/cli/tests/integration/check_tests.rs b/cli/tests/integration/check_tests.rs
index 8000ddc9d..5ceaffe51 100644
--- a/cli/tests/integration/check_tests.rs
+++ b/cli/tests/integration/check_tests.rs
@@ -1,7 +1,11 @@
 // Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
 
+use std::process::Stdio;
+
 use crate::itest;
 
+use test_util as util;
+
 itest!(_095_check_with_bare_import {
   args: "check 095_cache_with_bare_import.ts",
   output: "095_cache_with_bare_import.ts.out",
@@ -43,3 +47,62 @@ itest!(declaration_header_file_with_no_exports {
   args: "check --quiet declaration_header_file_with_no_exports.ts",
   output_str: Some(""),
 });
+
+#[test]
+fn cache_switching_config_then_no_config() {
+  let deno_dir = util::new_deno_dir();
+  assert!(does_type_checking(&deno_dir, true));
+  assert!(does_type_checking(&deno_dir, false));
+
+  // should now not do type checking even when it changes
+  // configs because it previously did
+  assert!(!does_type_checking(&deno_dir, true));
+  assert!(!does_type_checking(&deno_dir, false));
+
+  fn does_type_checking(deno_dir: &util::TempDir, with_config: bool) -> bool {
+    let mut cmd = util::deno_cmd_with_deno_dir(deno_dir);
+    cmd
+      .current_dir(util::testdata_path())
+      .stderr(Stdio::piped())
+      .arg("check")
+      .arg("check/cache_config_on_off/main.ts");
+    if with_config {
+      cmd
+        .arg("--config")
+        .arg("check/cache_config_on_off/deno.json");
+    }
+    let output = cmd.spawn().unwrap().wait_with_output().unwrap();
+    assert!(output.status.success());
+
+    let stderr = std::str::from_utf8(&output.stderr).unwrap();
+    stderr.contains("Check")
+  }
+}
+
+#[test]
+fn reload_flag() {
+  // should do type checking whenever someone specifies --reload
+  let deno_dir = util::new_deno_dir();
+  assert!(does_type_checking(&deno_dir, false));
+  assert!(!does_type_checking(&deno_dir, false));
+  assert!(does_type_checking(&deno_dir, true));
+  assert!(does_type_checking(&deno_dir, true));
+  assert!(!does_type_checking(&deno_dir, false));
+
+  fn does_type_checking(deno_dir: &util::TempDir, reload: bool) -> bool {
+    let mut cmd = util::deno_cmd_with_deno_dir(deno_dir);
+    cmd
+      .current_dir(util::testdata_path())
+      .stderr(Stdio::piped())
+      .arg("check")
+      .arg("check/cache_config_on_off/main.ts");
+    if reload {
+      cmd.arg("--reload");
+    }
+    let output = cmd.spawn().unwrap().wait_with_output().unwrap();
+    assert!(output.status.success());
+
+    let stderr = std::str::from_utf8(&output.stderr).unwrap();
+    stderr.contains("Check")
+  }
+}