Add test for stream.readToMatchingString

src/vs/base/test/node/stream/stream.test.ts

@@ -56,4 +56,26 @@ suite('Stream', () => {
 			done();
 		});
 	});
+
+	test('readToMatchingString - ANSI', function (done: () => void) {
+		var file = require.toUrl('./fixtures/file.css');
+
+		stream.readToMatchingString(file, '\n', 10, 100, (error: Error, result: string) => {
+			assert.equal(error, null);
+			assert.equal(result, '/*---------------------------------------------------------------------------------------------');
+
+			done();
+		});
+	});
+
+	test('readToMatchingString - empty', function (done: () => void) {
+		var file = require.toUrl('./fixtures/empty.txt');
+
+		stream.readToMatchingString(file, '\n', 10, 100, (error: Error, result: string) => {
+			assert.equal(error, null);
+			assert.equal(result, null);
+
+			done();
+		});
+	});
 });
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