3 files changed, 87 insertions, 0 deletions
diff --git a/cli/tests/integration_tests_lsp.rs b/cli/tests/integration_tests_lsp.rs
index 04c66625c..c33f6721f 100644
--- a/cli/tests/integration_tests_lsp.rs
+++ b/cli/tests/integration_tests_lsp.rs
@@ -172,6 +172,30 @@ fn lsp_tsconfig_types() {
 }
 
 #[test]
+fn lsp_tsconfig_bad_config_path() {
+  let mut client = init("initialize_params_bad_config_option.json");
+  let (method, maybe_params) = client.read_notification().unwrap();
+  assert_eq!(method, "window/showMessage");
+  assert_eq!(maybe_params, Some(lsp::ShowMessageParams {
+    typ: lsp::MessageType::Warning,
+    message: "The path to the configuration file (\"bad_tsconfig.json\") is not resolvable.".to_string()
+  }));
+  let diagnostics = did_open(
+    &mut client,
+    json!({
+      "textDocument": {
+        "uri": "file:///a/file.ts",
+        "languageId": "typescript",
+        "version": 1,
+        "text": "console.log(Deno.args);\n"
+      }
+    }),
+  );
+  let diagnostics = diagnostics.into_iter().flat_map(|x| x.diagnostics);
+  assert_eq!(diagnostics.count(), 0);
+}
+
+#[test]
 fn lsp_triple_slash_types() {
   let mut params: lsp::InitializeParams =
     serde_json::from_value(load_fixture("initialize_params.json")).unwrap();
diff --git a/cli/tests/lsp/initialize_params.json b/cli/tests/lsp/initialize_params.json
index 01b334cd5..f0b2d1dad 100644
--- a/cli/tests/lsp/initialize_params.json
+++ b/cli/tests/lsp/initialize_params.json
@@ -12,6 +12,7 @@
       "references": true,
       "test": true
     },
+    "config": "",
     "importMap": null,
     "lint": true,
     "suggest": {
diff --git a/cli/tests/lsp/initialize_params_bad_config_option.json b/cli/tests/lsp/initialize_params_bad_config_option.json
new file mode 100644
index 000000000..fbff31566
--- /dev/null
+++ b/cli/tests/lsp/initialize_params_bad_config_option.json
@@ -0,0 +1,62 @@
+{
+  "processId": 0,
+  "clientInfo": {
+    "name": "test-harness",
+    "version": "1.0.0"
+  },
+  "rootUri": null,
+  "initializationOptions": {
+    "enable": true,
+    "codeLens": {
+      "implementations": true,
+      "references": true,
+      "test": true
+    },
+    "config": "bad_tsconfig.json",
+    "importMap": null,
+    "lint": true,
+    "suggest": {
+      "autoImports": true,
+      "completeFunctionCalls": false,
+      "names": true,
+      "paths": true,
+      "imports": {
+        "hosts": {}
+      }
+    },
+    "unstable": false
+  },
+  "capabilities": {
+    "textDocument": {
+      "codeAction": {
+        "codeActionLiteralSupport": {
+          "codeActionKind": {
+            "valueSet": [
+              "quickfix"
+            ]
+          }
+        },
+        "isPreferredSupport": true,
+        "dataSupport": true,
+        "resolveSupport": {
+          "properties": [
+            "edit"
+          ]
+        }
+      },
+      "foldingRange": {
+        "lineFoldingOnly": true
+      },
+      "synchronization": {
+        "dynamicRegistration": true,
+        "willSave": true,
+        "willSaveWaitUntil": true,
+        "didSave": true
+      }
+    },
+    "workspace": {
+      "configuration": true,
+      "workspaceFolders": true
+    }
+  }
+}