Handle special output URI characters gracefully.

Signed-off-by: Akos Kitta <kittaakos@typefox.io>

examples/api-samples/src/browser/output/sample-output-channel-with-severity.ts

@@ -23,7 +23,7 @@ export class SampleOutputChannelWithSeverity
     @inject(OutputChannelManager)
     protected readonly outputChannelManager: OutputChannelManager;
     public onStart(): void {
-        const channel = this.outputChannelManager.getChannel('my test channel');
+        const channel = this.outputChannelManager.getChannel('API Sample: my test channel');
         channel.appendLine('hello info1'); // showed without color
         channel.appendLine('hello info2', OutputChannelSeverity.Info);
         channel.appendLine('hello error', OutputChannelSeverity.Error);

packages/output/src/common/output-uri.spec.ts

@@ -0,0 +1,53 @@
+/********************************************************************************
+ * Copyright (C) 2020 TypeFox and others.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the Eclipse
+ * Public License v. 2.0 are satisfied: GNU General Public License, version 2
+ * with the GNU Classpath Exception which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ ********************************************************************************/
+
+import { expect } from 'chai';
+import { OutputUri } from './output-uri';
+import { fail } from 'assert';
+
+describe('output-uri', () => {
+
+    it('should fail when output channel name is an empty string', () => {
+        try {
+            OutputUri.create('');
+            fail('Expected failure.');
+        } catch (e) {
+            expect(e.message).to.be.equal("'name' must be defined.");
+        }
+    });
+
+    it('should fail when output channel name contains whitespace only', () => {
+        try {
+            OutputUri.create('  \t');
+            fail('Expected failure.');
+        } catch (e) {
+            expect(e.message).to.be.equal("'name' must contain at least one non-whitespace character.");
+        }
+    });
+
+    it('should handle whitespace', () => {
+        const uri = OutputUri.create('foo bar');
+        const name = OutputUri.channelName(uri);
+        expect(name).to.be.equal('foo bar');
+    });
+
+    it('should handle special characters (:) gracefully', () => {
+        const uri = OutputUri.create('foo: bar');
+        const name = OutputUri.channelName(uri);
+        expect(name).to.be.equal('foo: bar');
+    });
+
+});

packages/output/src/common/output-uri.ts

@@ -28,7 +28,13 @@ export namespace OutputUri {
     }
 
     export function create(name: string): URI {
-        return new URI(name).withScheme(SCHEME);
+        if (!name) {
+            throw new Error("'name' must be defined.");
+        }
+        if (!name.trim().length) {
+            throw new Error("'name' must contain at least one non-whitespace character.");
+        }
+        return new URI(encodeURIComponent(name)).withScheme(SCHEME);
     }
 
     export function channelName(uri: string | URI): string {