From dc7ee381d5645f1b00be8d9d43b4afecc9b65ca7 Mon Sep 17 00:00:00 2001
From: Sheetal Nandi <shkamat@microsoft.com>
Date: Fri, 2 Mar 2018 16:10:34 -0800
Subject: [PATCH] Add tests when declaration emit for indirect alias usuage
 results in wrong error reporting Test for #22257

---
 ...rationEmitAliasFromIndirectFile.errors.txt | 31 +++++++++
 .../declarationEmitAliasFromIndirectFile.js   | 59 ++++++++++++++++
 ...clarationEmitAliasFromIndirectFile.symbols | 64 +++++++++++++++++
 ...declarationEmitAliasFromIndirectFile.types | 68 +++++++++++++++++++
 .../declarationEmitAliasFromIndirectFile.ts   | 27 ++++++++
 5 files changed, 249 insertions(+)
 create mode 100644 tests/baselines/reference/declarationEmitAliasFromIndirectFile.errors.txt
 create mode 100644 tests/baselines/reference/declarationEmitAliasFromIndirectFile.js
 create mode 100644 tests/baselines/reference/declarationEmitAliasFromIndirectFile.symbols
 create mode 100644 tests/baselines/reference/declarationEmitAliasFromIndirectFile.types
 create mode 100644 tests/cases/compiler/declarationEmitAliasFromIndirectFile.ts

diff --git a/tests/baselines/reference/declarationEmitAliasFromIndirectFile.errors.txt b/tests/baselines/reference/declarationEmitAliasFromIndirectFile.errors.txt
new file mode 100644
index 00000000000..22d258590e9
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitAliasFromIndirectFile.errors.txt
@@ -0,0 +1,31 @@
+tests/cases/compiler/app.ts(3,16): error TS2503: Cannot find namespace 'fp'.
+
+
+==== tests/cases/compiler/locale.d.ts (0 errors) ====
+    export type Locale = {
+        weekdays: {
+            shorthand: [string, string, string, string, string, string, string];
+            longhand: [string, string, string, string, string, string, string];
+        };
+    };
+    export type CustomLocale = {
+        weekdays: {
+            shorthand: [string, string, string, string, string, string, string];
+            longhand: [string, string, string, string, string, string, string];
+        };
+    };
+    export type key = "ar" | "bg";
+    
+==== tests/cases/compiler/instance.d.ts (0 errors) ====
+    import { Locale, CustomLocale, key as LocaleKey } from "./locale";
+    export interface FlatpickrFn {
+        l10ns: {[k in LocaleKey]?: CustomLocale } & { default: Locale };
+    }
+    
+==== tests/cases/compiler/app.ts (1 errors) ====
+    import { FlatpickrFn } from "./instance";
+    const fp = { l10ns: {} } as FlatpickrFn;
+    export default fp.l10ns;
+                   ~~
+!!! error TS2503: Cannot find namespace 'fp'.
+    
\ No newline at end of file
diff --git a/tests/baselines/reference/declarationEmitAliasFromIndirectFile.js b/tests/baselines/reference/declarationEmitAliasFromIndirectFile.js
new file mode 100644
index 00000000000..1d55514eb9d
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitAliasFromIndirectFile.js
@@ -0,0 +1,59 @@
+//// [tests/cases/compiler/declarationEmitAliasFromIndirectFile.ts] ////
+
+//// [locale.d.ts]
+export type Locale = {
+    weekdays: {
+        shorthand: [string, string, string, string, string, string, string];
+        longhand: [string, string, string, string, string, string, string];
+    };
+};
+export type CustomLocale = {
+    weekdays: {
+        shorthand: [string, string, string, string, string, string, string];
+        longhand: [string, string, string, string, string, string, string];
+    };
+};
+export type key = "ar" | "bg";
+
+//// [instance.d.ts]
+import { Locale, CustomLocale, key as LocaleKey } from "./locale";
+export interface FlatpickrFn {
+    l10ns: {[k in LocaleKey]?: CustomLocale } & { default: Locale };
+}
+
+//// [app.ts]
+import { FlatpickrFn } from "./instance";
+const fp = { l10ns: {} } as FlatpickrFn;
+export default fp.l10ns;
+
+
+//// [app.js]
+"use strict";
+exports.__esModule = true;
+var fp = { l10ns: {} };
+exports["default"] = fp.l10ns;
+
+
+//// [app.d.ts]
+declare const _default: {
+    ar?: {
+        weekdays: {
+            shorthand: [string, string, string, string, string, string, string];
+            longhand: [string, string, string, string, string, string, string];
+        };
+    };
+    bg?: {
+        weekdays: {
+            shorthand: [string, string, string, string, string, string, string];
+            longhand: [string, string, string, string, string, string, string];
+        };
+    };
+} & {
+    default: {
+        weekdays: {
+            shorthand: [string, string, string, string, string, string, string];
+            longhand: [string, string, string, string, string, string, string];
+        };
+    };
+};
+export default _default;
diff --git a/tests/baselines/reference/declarationEmitAliasFromIndirectFile.symbols b/tests/baselines/reference/declarationEmitAliasFromIndirectFile.symbols
new file mode 100644
index 00000000000..78dba37e97e
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitAliasFromIndirectFile.symbols
@@ -0,0 +1,64 @@
+=== tests/cases/compiler/locale.d.ts ===
+export type Locale = {
+>Locale : Symbol(Locale, Decl(locale.d.ts, 0, 0))
+
+    weekdays: {
+>weekdays : Symbol(weekdays, Decl(locale.d.ts, 0, 22))
+
+        shorthand: [string, string, string, string, string, string, string];
+>shorthand : Symbol(shorthand, Decl(locale.d.ts, 1, 15))
+
+        longhand: [string, string, string, string, string, string, string];
+>longhand : Symbol(longhand, Decl(locale.d.ts, 2, 76))
+
+    };
+};
+export type CustomLocale = {
+>CustomLocale : Symbol(CustomLocale, Decl(locale.d.ts, 5, 2))
+
+    weekdays: {
+>weekdays : Symbol(weekdays, Decl(locale.d.ts, 6, 28))
+
+        shorthand: [string, string, string, string, string, string, string];
+>shorthand : Symbol(shorthand, Decl(locale.d.ts, 7, 15))
+
+        longhand: [string, string, string, string, string, string, string];
+>longhand : Symbol(longhand, Decl(locale.d.ts, 8, 76))
+
+    };
+};
+export type key = "ar" | "bg";
+>key : Symbol(key, Decl(locale.d.ts, 11, 2))
+
+=== tests/cases/compiler/instance.d.ts ===
+import { Locale, CustomLocale, key as LocaleKey } from "./locale";
+>Locale : Symbol(Locale, Decl(instance.d.ts, 0, 8))
+>CustomLocale : Symbol(CustomLocale, Decl(instance.d.ts, 0, 16))
+>key : Symbol(LocaleKey, Decl(instance.d.ts, 0, 30))
+>LocaleKey : Symbol(LocaleKey, Decl(instance.d.ts, 0, 30))
+
+export interface FlatpickrFn {
+>FlatpickrFn : Symbol(FlatpickrFn, Decl(instance.d.ts, 0, 66))
+
+    l10ns: {[k in LocaleKey]?: CustomLocale } & { default: Locale };
+>l10ns : Symbol(FlatpickrFn.l10ns, Decl(instance.d.ts, 1, 30))
+>k : Symbol(k, Decl(instance.d.ts, 2, 13))
+>LocaleKey : Symbol(LocaleKey, Decl(instance.d.ts, 0, 30))
+>CustomLocale : Symbol(CustomLocale, Decl(instance.d.ts, 0, 16))
+>default : Symbol(default, Decl(instance.d.ts, 2, 49))
+>Locale : Symbol(Locale, Decl(instance.d.ts, 0, 8))
+}
+
+=== tests/cases/compiler/app.ts ===
+import { FlatpickrFn } from "./instance";
+>FlatpickrFn : Symbol(FlatpickrFn, Decl(app.ts, 0, 8))
+
+const fp = { l10ns: {} } as FlatpickrFn;
+>fp : Symbol(fp, Decl(app.ts, 1, 5))
+>l10ns : Symbol(l10ns, Decl(app.ts, 1, 12))
+>FlatpickrFn : Symbol(FlatpickrFn, Decl(app.ts, 0, 8))
+
+export default fp.l10ns;
+>fp : Symbol(fp, Decl(app.ts, 1, 5))
+>l10ns : Symbol(FlatpickrFn.l10ns, Decl(instance.d.ts, 1, 30))
+
diff --git a/tests/baselines/reference/declarationEmitAliasFromIndirectFile.types b/tests/baselines/reference/declarationEmitAliasFromIndirectFile.types
new file mode 100644
index 00000000000..16730debf8e
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitAliasFromIndirectFile.types
@@ -0,0 +1,68 @@
+=== tests/cases/compiler/locale.d.ts ===
+export type Locale = {
+>Locale : Locale
+
+    weekdays: {
+>weekdays : { shorthand: [string, string, string, string, string, string, string]; longhand: [string, string, string, string, string, string, string]; }
+
+        shorthand: [string, string, string, string, string, string, string];
+>shorthand : [string, string, string, string, string, string, string]
+
+        longhand: [string, string, string, string, string, string, string];
+>longhand : [string, string, string, string, string, string, string]
+
+    };
+};
+export type CustomLocale = {
+>CustomLocale : CustomLocale
+
+    weekdays: {
+>weekdays : { shorthand: [string, string, string, string, string, string, string]; longhand: [string, string, string, string, string, string, string]; }
+
+        shorthand: [string, string, string, string, string, string, string];
+>shorthand : [string, string, string, string, string, string, string]
+
+        longhand: [string, string, string, string, string, string, string];
+>longhand : [string, string, string, string, string, string, string]
+
+    };
+};
+export type key = "ar" | "bg";
+>key : key
+
+=== tests/cases/compiler/instance.d.ts ===
+import { Locale, CustomLocale, key as LocaleKey } from "./locale";
+>Locale : any
+>CustomLocale : any
+>key : any
+>LocaleKey : any
+
+export interface FlatpickrFn {
+>FlatpickrFn : FlatpickrFn
+
+    l10ns: {[k in LocaleKey]?: CustomLocale } & { default: Locale };
+>l10ns : { ar?: CustomLocale; bg?: CustomLocale; } & { default: Locale; }
+>k : k
+>LocaleKey : LocaleKey
+>CustomLocale : CustomLocale
+>default : Locale
+>Locale : Locale
+}
+
+=== tests/cases/compiler/app.ts ===
+import { FlatpickrFn } from "./instance";
+>FlatpickrFn : any
+
+const fp = { l10ns: {} } as FlatpickrFn;
+>fp : FlatpickrFn
+>{ l10ns: {} } as FlatpickrFn : FlatpickrFn
+>{ l10ns: {} } : { l10ns: {}; }
+>l10ns : {}
+>{} : {}
+>FlatpickrFn : FlatpickrFn
+
+export default fp.l10ns;
+>fp.l10ns : { ar?: { weekdays: { shorthand: [string, string, string, string, string, string, string]; longhand: [string, string, string, string, string, string, string]; }; }; bg?: { weekdays: { shorthand: [string, string, string, string, string, string, string]; longhand: [string, string, string, string, string, string, string]; }; }; } & { default: { weekdays: { shorthand: [string, string, string, string, string, string, string]; longhand: [string, string, string, string, string, string, string]; }; }; }
+>fp : FlatpickrFn
+>l10ns : { ar?: { weekdays: { shorthand: [string, string, string, string, string, string, string]; longhand: [string, string, string, string, string, string, string]; }; }; bg?: { weekdays: { shorthand: [string, string, string, string, string, string, string]; longhand: [string, string, string, string, string, string, string]; }; }; } & { default: { weekdays: { shorthand: [string, string, string, string, string, string, string]; longhand: [string, string, string, string, string, string, string]; }; }; }
+
diff --git a/tests/cases/compiler/declarationEmitAliasFromIndirectFile.ts b/tests/cases/compiler/declarationEmitAliasFromIndirectFile.ts
new file mode 100644
index 00000000000..b76a058ab41
--- /dev/null
+++ b/tests/cases/compiler/declarationEmitAliasFromIndirectFile.ts
@@ -0,0 +1,27 @@
+// @declaration: true
+
+// @filename: locale.d.ts
+export type Locale = {
+    weekdays: {
+        shorthand: [string, string, string, string, string, string, string];
+        longhand: [string, string, string, string, string, string, string];
+    };
+};
+export type CustomLocale = {
+    weekdays: {
+        shorthand: [string, string, string, string, string, string, string];
+        longhand: [string, string, string, string, string, string, string];
+    };
+};
+export type key = "ar" | "bg";
+
+// @filename: instance.d.ts
+import { Locale, CustomLocale, key as LocaleKey } from "./locale";
+export interface FlatpickrFn {
+    l10ns: {[k in LocaleKey]?: CustomLocale } & { default: Locale };
+}
+
+// @filename: app.ts
+import { FlatpickrFn } from "./instance";
+const fp = { l10ns: {} } as FlatpickrFn;
+export default fp.l10ns;