Add tests

Author: Benjamin Lichtman

src/testRunner/unittests/convertToAsyncFunction.ts

@@ -817,7 +817,7 @@ function [#|f|]() {
         );
         _testConvertToAsyncFunction("convertToAsyncFunction_Scope1", `
 function [#|f|]() {
-    var var1:Promise<Response>, var2;
+    var var1: Response, var2;
     return fetch('https://typescriptlang.org').then( _ =>
       Promise.resolve().then( res => {
         var2 = "test";
@@ -1190,6 +1190,30 @@ function [#|f|]() {
 function res(result) {
     return Promise.resolve().then(x => console.log(result));
 } 
+`);
+
+    _testConvertToAsyncFunction("convertToAsyncFunction_callbackReturnsPromise", `
+function [#|f|]() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText.length)).then(x => console.log(x + 5));
+}
+`);
+
+    _testConvertToAsyncFunction("convertToAsyncFunction_callbackReturnsPromiseInBlock", `
+function [#|f|]() {
+    return fetch('https://typescriptlang.org').then(s => { return Promise.resolve(s.statusText.length) }).then(x => x + 5);
+}
+`);
+
+    _testConvertToAsyncFunction("convertToAsyncFunction_callbackReturnsFixablePromise", `
+function [#|f|]() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText).then(st => st.length)).then(x => console.log(x + 5));
+}
+`);
+
+    _testConvertToAsyncFunction("convertToAsyncFunction_callbackReturnsPromiseLastInChain", `
+function [#|f|]() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText.length));
+}
 `);
 
     });

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_Scope1.ts

@@ -1,7 +1,7 @@
 // ==ORIGINAL==
 
 function /*[#|*/f/*|]*/() {
-    var var1:Promise<Response>, var2;
+    var var1: Response, var2;
     return fetch('https://typescriptlang.org').then( _ =>
       Promise.resolve().then( res => {
         var2 = "test";
@@ -18,11 +18,11 @@ function /*[#|*/f/*|]*/() {
 // ==ASYNC FUNCTION::Convert to async function==
 
 async function f() {
-    var var1:Promise<Response>, var2;
+    var var1: Response, var2;
     await fetch('https://typescriptlang.org');
     const res = await Promise.resolve();
     var2 = "test";
-    const res_1 = fetch("https://microsoft.com");
+    const res_1 = await fetch("https://microsoft.com");
     const response = var1 === res_1;
     return res(response);
   }

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_callbackReturnsFixablePromise.js

@@ -0,0 +1,14 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText).then(st => st.length)).then(x => console.log(x + 5));
+}
+
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const s = await fetch('https://typescriptlang.org');
+    const st = await Promise.resolve(s.statusText);
+    const x = st.length;
+    return console.log(x + 5);
+}

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_callbackReturnsFixablePromise.ts

@@ -0,0 +1,14 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText).then(st => st.length)).then(x => console.log(x + 5));
+}
+
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const s = await fetch('https://typescriptlang.org');
+    const st = await Promise.resolve(s.statusText);
+    const x = st.length;
+    return console.log(x + 5);
+}

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_callbackReturnsPromise.js

@@ -0,0 +1,13 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText.length)).then(x => console.log(x + 5));
+}
+
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const s = await fetch('https://typescriptlang.org');
+    const x = await Promise.resolve(s.statusText.length);
+    return console.log(x + 5);
+}

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_callbackReturnsPromise.ts

@@ -0,0 +1,13 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText.length)).then(x => console.log(x + 5));
+}
+
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const s = await fetch('https://typescriptlang.org');
+    const x = await Promise.resolve(s.statusText.length);
+    return console.log(x + 5);
+}

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_callbackReturnsPromiseInBlock.js

@@ -0,0 +1,13 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(s => { return Promise.resolve(s.statusText.length) }).then(x => x + 5);
+}
+
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const s = await fetch('https://typescriptlang.org');
+    const x = await Promise.resolve(s.statusText.length);
+    return x + 5;
+}

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_callbackReturnsPromiseInBlock.ts

@@ -0,0 +1,13 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(s => { return Promise.resolve(s.statusText.length) }).then(x => x + 5);
+}
+
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const s = await fetch('https://typescriptlang.org');
+    const x = await Promise.resolve(s.statusText.length);
+    return x + 5;
+}

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_callbackReturnsPromiseLastInChain.js

@@ -0,0 +1,12 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText.length));
+}
+
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const s = await fetch('https://typescriptlang.org');
+    return Promise.resolve(s.statusText.length);
+}

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_callbackReturnsPromiseLastInChain.ts

@@ -0,0 +1,12 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(s => Promise.resolve(s.statusText.length));
+}
+
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const s = await fetch('https://typescriptlang.org');
+    return Promise.resolve(s.statusText.length);
+}