Add fourslash tests

Author: donaldnevermore

tests/cases/fourslash/formattingIndentSwitchCase.ts

@@ -0,0 +1,31 @@
+/// <reference path='fourslash.ts'/>
+
+////let foo = 1;
+////switch (foo) {
+/////*1*/case 0:
+/////*2*/break;
+/////*3*/default:
+/////*4*/break;
+////}
+
+format.setOption('indentSwitchCase', true);
+format.document();
+goTo.marker('1');
+verify.indentationIs(4);
+goTo.marker('2');
+verify.indentationIs(8);
+goTo.marker('3');
+verify.indentationIs(4);
+goTo.marker('4');
+verify.indentationIs(8);
+
+format.setOption('indentSwitchCase', false);
+format.document();
+goTo.marker('1');
+verify.indentationIs(0);
+goTo.marker('2');
+verify.indentationIs(4);
+goTo.marker('3');
+verify.indentationIs(0);
+goTo.marker('4');
+verify.indentationIs(4);

tests/cases/fourslash/fourslash.ts

@@ -196,6 +196,7 @@ declare namespace FourSlashInterface {
         readonly insertSpaceBeforeTypeAnnotation?: boolean;
         readonly indentMultiLineObjectLiteralBeginningOnBlankLine?: boolean;
         readonly semicolons?: ts.SemicolonPreference;
+        readonly indentSwitchCase?: boolean;
     }
     interface Range {
         fileName: string;