Add test that reads options and verifies default values

src/omnisharp/options.ts

@@ -38,8 +38,8 @@ export class Options {
         const waitForDebugger = omnisharpConfig.get<boolean>('waitForDebugger', false);
 
         // support the legacy "verbose" level as "debug"
-        let loggingLevel = omnisharpConfig.get<string>('loggingLevel');
-        if (loggingLevel.toLowerCase() === 'verbose') {
+        let loggingLevel = omnisharpConfig.get<string>('loggingLevel', 'information');
+        if (loggingLevel && loggingLevel.toLowerCase() === 'verbose') {
             loggingLevel = 'debug';
         }
 
@@ -56,7 +56,7 @@ export class Options {
 
         const disableCodeActions = csharpConfig.get<boolean>('disableCodeActions', false);
 
-        const disableMSBuildDiagnosticWarning = omnisharpConfig.get<boolean>('disableMSBuildDiagnosticWarning');
+        const disableMSBuildDiagnosticWarning = omnisharpConfig.get<boolean>('disableMSBuildDiagnosticWarning', false);
 
         return new Options(
             path, 
@@ -97,7 +97,7 @@ export class Options {
 
         if (omnisharpConfig.has('useGlobalMono')) {
             // If 'omnisharp.useGlobalMono' setting was found, just use it.
-            return omnisharpConfig.get<string>('useGlobalMono');
+            return omnisharpConfig.get<string>('useGlobalMono', "auto");
         }
         else if (omnisharpConfig.has('useMono')) {
             // BACKCOMPAT: If 'omnisharp.useMono' setting was found, true maps to "always" and false maps to "auto"

test/unitTests/options.test.ts

@@ -0,0 +1,56 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { should, expect } from 'chai';
+import { Options } from '../../src/omnisharp/options';
+import { getFakeVsCode, getWorkspaceConfiguration } from './testAssets/Fakes';
+
+function getVSCode() {
+    const vscode = getFakeVsCode();
+
+    const omnisharpConfig = getWorkspaceConfiguration();
+    const csharpConfig = getWorkspaceConfiguration();
+
+    vscode.workspace.getConfiguration = (section?, resource?) =>
+    {
+        if (section === 'omnisharp')
+        {
+            return omnisharpConfig;
+        }
+
+        if (section === 'csharp')
+        {
+            return csharpConfig;
+        }
+
+        return undefined;
+    };
+
+    return vscode;
+}
+
+suite("CsharpChannelObserver", () => {
+    suiteSetup(() => should());
+
+    test('Construct options and verify defaults', () =>
+    {
+        const vscode = getVSCode();
+        const options = Options.Read(vscode);
+
+        expect(options.path).to.be.null;
+        options.useGlobalMono.should.equal("auto");
+        options.waitForDebugger.should.equal(false);
+        options.loggingLevel.should.equal("information");
+        options.autoStart.should.equal(true);
+        options.projectLoadTimeout.should.equal(60);
+        options.maxProjectResults.should.equal(250);
+        options.useEditorFormattingSettings.should.equal(true);
+        options.useFormatting.should.equal(true);
+        options.showReferencesCodeLens.should.equal(true);
+        options.showTestsCodeLens.should.equal(true);
+        options.disableCodeActions.should.equal(false);
+        options.disableCodeActions.should.equal(false);
+    });
+});

test/unitTests/testAssets/Fakes.ts

@@ -32,8 +32,8 @@ export const getNullTelemetryReporter = (): ITelemetryReporter => {
 };
 
 export const getNullWorkspaceConfiguration = (): vscode.WorkspaceConfiguration => {
-    let workspace: vscode.WorkspaceConfiguration = {
-        get: <T>(section: string): T| undefined => {
+    let configuration: vscode.WorkspaceConfiguration = {
+        get: <T>(section: string): T | undefined => {
             return undefined;
         },
         has: (section: string) => { return undefined; },
@@ -42,9 +42,33 @@ export const getNullWorkspaceConfiguration = (): vscode.WorkspaceConfiguration =
                 key: undefined
             };
         },
-        update: async () => { return Promise.resolve(); },
+        update: async () => { return Promise.resolve(); }
     };
-    return workspace;
+
+    return configuration;
+};
+
+export const getWorkspaceConfiguration = (): vscode.WorkspaceConfiguration => {
+    let values: { [key: string]: any } = {};
+
+    let configuration: vscode.WorkspaceConfiguration = {
+        get<T>(section: string, defaultValue?: T): T | undefined {
+            let result = <T>values[section];
+            return result === undefined && defaultValue !== undefined
+                ? defaultValue
+                : result;
+        },
+        has: (section: string) => {
+            return values[section] !== undefined;
+        },
+        inspect: () => { throw new Error("Not Implemented"); },
+        update: async (section: string, value: any, configurationTarget?: vscode.ConfigurationTarget | boolean) => {
+            values[section] = value;
+            return Promise.resolve();
+        }
+    };
+
+    return configuration;
 };
 
 export function getOmnisharpMSBuildProjectDiagnosticsEvent(fileName: string, warnings: MSBuildDiagnosticsMessage[], errors: MSBuildDiagnosticsMessage[]): OmnisharpServerMsBuildProjectDiagnostics {