1 files changed, 42 insertions, 0 deletions
diff --git a/build/extension/client/src/test/diagnostics.test.ts b/build/extension/client/src/test/diagnostics.test.ts
new file mode 100644
index 00000000..1eee4990
--- /dev/null
+++ b/build/extension/client/src/test/diagnostics.test.ts
@@ -0,0 +1,42 @@
+/* --------------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See License.txt in the project root for license information.
+ * ------------------------------------------------------------------------------------------ */
+'use strict';
+
+import * as vscode from 'vscode'
+import * as assert from 'assert'
+import { getDocUri, activate } from './helper'
+
+describe('Should get diagnostics', () => {
+  const docUri = getDocUri('diagnostics.txt')
+
+  it('Diagnoses uppercase texts', async () => {
+    await testDiagnostics(docUri, [
+      { message: 'ANY is all uppercase.', range: toRange(0, 0, 0, 3), severity: vscode.DiagnosticSeverity.Warning, source: 'ex' },
+      { message: 'ANY is all uppercase.', range: toRange(0, 14, 0, 17), severity: vscode.DiagnosticSeverity.Warning, source: 'ex' },
+      { message: 'OS is all uppercase.', range: toRange(0, 18, 0, 20), severity: vscode.DiagnosticSeverity.Warning, source: 'ex' }
+    ])
+  })
+})
+
+function toRange(sLine: number, sChar: number, eLine: number, eChar: number) {
+  const start = new vscode.Position(sLine, sChar)
+  const end = new vscode.Position(eLine, eChar)
+  return new vscode.Range(start, end)
+}
+
+async function testDiagnostics(docUri: vscode.Uri, expectedDiagnostics: vscode.Diagnostic[]) {
+  await activate(docUri)
+
+  const actualDiagnostics = vscode.languages.getDiagnostics(docUri);
+
+  assert.equal(actualDiagnostics.length, expectedDiagnostics.length);
+
+  expectedDiagnostics.forEach((expectedDiagnostic, i) => {
+    const actualDiagnostic = actualDiagnostics[i]
+    assert.equal(actualDiagnostic.message, expectedDiagnostic.message)
+    assert.deepEqual(actualDiagnostic.range, expectedDiagnostic.range)
+    assert.equal(actualDiagnostic.severity, expectedDiagnostic.severity)
+  })
+} 
+\ No newline at end of file