Adding tests

Author: ahejlsberg

tests/baselines/reference/TypeGuardWithEnumUnion.js

@@ -0,0 +1,77 @@
+//// [TypeGuardWithEnumUnion.ts]
+enum Color { R, G, B }
+
+function f1(x: Color | string) {
+ if (typeof x === "number") {
+ var y = x;
+ var y: Color;
+ }
+ else {
+ var z = x;
+ var z: string;
+ }
+}
+
+function f2(x: Color | string | string[]) {
+ if (typeof x === "object") {
+ var y = x;
+ var y: string[];
+ }
+ if (typeof x === "number") {
+ var z = x;
+ var z: Color;
+ }
+ else {
+ var w = x;
+ var w: string | string[];
+ }
+ if (typeof x === "string") {
+ var a = x;
+ var a: string;
+ }
+ else {
+ var b = x;
+ var b: Color | string[];
+ }
+}
+
+
+//// [TypeGuardWithEnumUnion.js]
+var Color;
+(function (Color) {
+ Color[Color["R"] = 0] = "R";
+ Color[Color["G"] = 1] = "G";
+ Color[Color["B"] = 2] = "B";
+})(Color || (Color = {}));
+function f1(x) {
+ if (typeof x === "number") {
+ var y = x;
+ var y;
+ }
+ else {
+ var z = x;
+ var z;
+ }
+}
+function f2(x) {
+ if (typeof x === "object") {
+ var y = x;
+ var y;
+ }
+ if (typeof x === "number") {
+ var z = x;
+ var z;
+ }
+ else {
+ var w = x;
+ var w;
+ }
+ if (typeof x === "string") {
+ var a = x;
+ var a;
+ }
+ else {
+ var b = x;
+ var b;
+ }
+}

tests/baselines/reference/TypeGuardWithEnumUnion.types

@@ -0,0 +1,96 @@
+=== tests/cases/conformance/expressions/typeGuards/TypeGuardWithEnumUnion.ts ===
+enum Color { R, G, B }
+>Color : Color
+>R : Color
+>G : Color
+>B : Color
+
+function f1(x: Color | string) {
+>f1 : (x: string | Color) => void
+>x : string | Color
+>Color : Color
+
+ if (typeof x === "number") {
+>typeof x === "number" : boolean
+>typeof x : string
+>x : string | Color
+
+ var y = x;
+>y : Color
+>x : Color
+
+ var y: Color;
+>y : Color
+>Color : Color
+ }
+ else {
+ var z = x;
+>z : string
+>x : string
+
+ var z: string;
+>z : string
+ }
+}
+
+function f2(x: Color | string | string[]) {
+>f2 : (x: string | string[] | Color) => void
+>x : string | string[] | Color
+>Color : Color
+
+ if (typeof x === "object") {
+>typeof x === "object" : boolean
+>typeof x : string
+>x : string | string[] | Color
+
+ var y = x;
+>y : string[]
+>x : string[]
+
+ var y: string[];
+>y : string[]
+ }
+ if (typeof x === "number") {
+>typeof x === "number" : boolean
+>typeof x : string
+>x : string | string[] | Color
+
+ var z = x;
+>z : Color
+>x : Color
+
+ var z: Color;
+>z : Color
+>Color : Color
+ }
+ else {
+ var w = x;
+>w : string | string[]
+>x : string | string[]
+
+ var w: string | string[];
+>w : string | string[]
+ }
+ if (typeof x === "string") {
+>typeof x === "string" : boolean
+>typeof x : string
+>x : string | string[] | Color
+
+ var a = x;
+>a : string
+>x : string
+
+ var a: string;
+>a : string
+ }
+ else {
+ var b = x;
+>b : string[] | Color
+>x : string[] | Color
+
+ var b: Color | string[];
+>b : string[] | Color
+>Color : Color
+ }
+}
+

tests/cases/conformance/expressions/typeGuards/TypeGuardWithEnumUnion.ts

@@ -0,0 +1,35 @@
+enum Color { R, G, B }
+
+function f1(x: Color | string) {
+ if (typeof x === "number") {
+ var y = x;
+ var y: Color;
+ }
+ else {
+ var z = x;
+ var z: string;
+ }
+}
+
+function f2(x: Color | string | string[]) {
+ if (typeof x === "object") {
+ var y = x;
+ var y: string[];
+ }
+ if (typeof x === "number") {
+ var z = x;
+ var z: Color;
+ }
+ else {
+ var w = x;
+ var w: string | string[];
+ }
+ if (typeof x === "string") {
+ var a = x;
+ var a: string;
+ }
+ else {
+ var b = x;
+ var b: Color | string[];
+ }
+}