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Adding fourslash test

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This commit is contained in:
Anders Hejlsberg
2016-04-27 09:08:45 -07:00
parent 700435bb8e
commit 65edb527f5
1 changed files with 21 additions and 0 deletions
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21
tests/cases/fourslash/quickInfoOnNarrowedType.ts
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@@ -1,5 +1,7 @@
/// <reference path='fourslash.ts'/>
// @strictNullChecks: true
////function foo(strOrNum: string | number) {
//// if (typeof /*1*/strOrNum === "number") {
//// return /*2*/strOrNum;
@@ -9,6 +11,13 @@
//// }
////}
////function bar() {
//// let s: string | undefined;
//// /*4*/s;
//// /*5*/s = "abc";
//// /*6*/s;
////}
goTo.marker('1');
verify.quickInfoIs('(parameter) strOrNum: string | number');
verify.completionListContains("strOrNum", "(parameter) strOrNum: string | number");
@@ -20,3 +29,15 @@ verify.completionListContains("strOrNum", "(parameter) strOrNum: number");
goTo.marker('3');
verify.quickInfoIs('(parameter) strOrNum: string');
verify.completionListContains("strOrNum", "(parameter) strOrNum: string");
goTo.marker('4');
verify.quickInfoIs('let s: undefined');
verify.completionListContains("s", "let s: undefined");
goTo.marker('5');
verify.quickInfoIs('let s: string | undefined');
verify.completionListContains("s", "let s: string | undefined");
goTo.marker('6');
verify.quickInfoIs('let s: string');
verify.completionListContains("s", "let s: string");