diff --git a/src/vs/workbench/parts/debug/test/common/debugSource.test.ts b/src/vs/workbench/parts/debug/test/common/debugSource.test.ts
index 072ee84d214af537ecbb3ae5e42a7c7d19a065d5..a2f305ffa68a8687e8884713f676262e7dcfd001 100644
--- a/src/vs/workbench/parts/debug/test/common/debugSource.test.ts
+++ b/src/vs/workbench/parts/debug/test/common/debugSource.test.ts
@@ -6,6 +6,7 @@
 import * as assert from 'assert';
 import uri from 'vs/base/common/uri';
 import { Source } from 'vs/workbench/parts/debug/common/debugSource';
+import { normalize } from 'vs/base/common/paths';
 
 suite('Debug - Source', () => {
 
@@ -37,4 +38,22 @@ suite('Debug - Source', () => {
 		assert.equal(source.reference, 11);
 		assert.equal(source.uri.toString(), 'debug:internalModule.js?session%3DaDebugSessionId%26ref%3D11');
 	});
+
+	test('get encoded debug data', () => {
+		const checkData = (uri: uri, expectedName, expectedPath, expectedSourceReference, expectedProcessId) => {
+			let { name, path, sourceReference, processId } = Source.getEncodedDebugData(uri);
+			assert.equal(name, expectedName);
+			assert.equal(path, expectedPath);
+			assert.equal(sourceReference, expectedSourceReference);
+			assert.equal(processId, expectedProcessId);
+		};
+
+		checkData(uri.file('a/b/c/d'), 'd', normalize('/a/b/c/d', true), undefined, undefined);
+		checkData(uri.from({ scheme: 'file', path: '/my/path/test.js', query: 'ref=1&session=2' }), 'test.js', normalize('/my/path/test.js', true), undefined, undefined);
+
+		checkData(uri.from({ scheme: 'http', authority: 'www.msft.com', path: '/my/path' }), 'path', 'http://www.msft.com/my/path', undefined, undefined);
+		checkData(uri.from({ scheme: 'debug', authority: 'www.msft.com', path: '/my/path', query: 'ref=100' }), 'path', '/my/path', 100, undefined);
+		checkData(uri.from({ scheme: 'debug', path: 'a/b/c/d.js', query: 'session=100' }), 'd.js', 'a/b/c/d.js', undefined, 100);
+		checkData(uri.from({ scheme: 'debug', path: 'a/b/c/d/foo.txt', query: 'session=100&ref=10' }), 'foo.txt', 'a/b/c/d/foo.txt', 10, 100);
+	});
 });