From 5c491333823d59d48d4f6376cfd59a68176c8553 Mon Sep 17 00:00:00 2001
From: Wesley Wigham <wwigham@gmail.com>
Date: Thu, 29 Mar 2018 11:01:05 -0700
Subject: [PATCH] Add regression tests documenting current behavior of #14121
 (#22748)

---
 ...tAssignmentMembersVisibleInAugmentation.js | 39 +++++++++++++++++++
 ...gnmentMembersVisibleInAugmentation.symbols | 36 +++++++++++++++++
 ...signmentMembersVisibleInAugmentation.types | 36 +++++++++++++++++
 ...tAssignmentMembersVisibleInAugmentation.ts | 19 +++++++++
 4 files changed, 130 insertions(+)
 create mode 100644 tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.js
 create mode 100644 tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.symbols
 create mode 100644 tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.types
 create mode 100644 tests/cases/compiler/exportAssignmentMembersVisibleInAugmentation.ts

diff --git a/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.js b/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.js
new file mode 100644
index 00000000000..8690fecc969
--- /dev/null
+++ b/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.js
@@ -0,0 +1,39 @@
+//// [tests/cases/compiler/exportAssignmentMembersVisibleInAugmentation.ts] ////
+
+//// [index.d.ts]
+export = foo;
+declare namespace foo {
+    export type T = number;
+}
+
+//// [a.ts]
+import * as foo from "foo";
+declare module "foo" {
+    export function f(): T; // OK
+}
+
+//// [b.ts]
+import * as foo from "foo";
+declare module "foo" {
+    export function g(): foo.T; // OK
+}
+
+
+//// [a.js]
+"use strict";
+exports.__esModule = true;
+//// [b.js]
+"use strict";
+exports.__esModule = true;
+
+
+//// [a.d.ts]
+declare module "foo" {
+    function f(): T;
+}
+export {};
+//// [b.d.ts]
+import * as foo from "foo";
+declare module "foo" {
+    function g(): foo.T;
+}
diff --git a/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.symbols b/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.symbols
new file mode 100644
index 00000000000..a5cf5aa514c
--- /dev/null
+++ b/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.symbols
@@ -0,0 +1,36 @@
+=== /node_modules/foo/index.d.ts ===
+export = foo;
+>foo : Symbol(foo, Decl(index.d.ts, 0, 13))
+
+declare namespace foo {
+>foo : Symbol(foo, Decl(index.d.ts, 0, 13), Decl(a.ts, 0, 27), Decl(b.ts, 0, 27))
+
+    export type T = number;
+>T : Symbol(T, Decl(index.d.ts, 1, 23))
+}
+
+=== /a.ts ===
+import * as foo from "foo";
+>foo : Symbol(foo, Decl(a.ts, 0, 6))
+
+declare module "foo" {
+>"foo" : Symbol(foo, Decl(index.d.ts, 0, 13), Decl(a.ts, 0, 27), Decl(b.ts, 0, 27))
+
+    export function f(): T; // OK
+>f : Symbol(f, Decl(a.ts, 1, 22))
+>T : Symbol(T, Decl(index.d.ts, 1, 23))
+}
+
+=== /b.ts ===
+import * as foo from "foo";
+>foo : Symbol(foo, Decl(b.ts, 0, 6))
+
+declare module "foo" {
+>"foo" : Symbol(foo, Decl(index.d.ts, 0, 13), Decl(a.ts, 0, 27), Decl(b.ts, 0, 27))
+
+    export function g(): foo.T; // OK
+>g : Symbol(g, Decl(b.ts, 1, 22))
+>foo : Symbol(foo, Decl(b.ts, 0, 6))
+>T : Symbol(T, Decl(index.d.ts, 1, 23))
+}
+
diff --git a/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.types b/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.types
new file mode 100644
index 00000000000..74efa10e4d2
--- /dev/null
+++ b/tests/baselines/reference/exportAssignmentMembersVisibleInAugmentation.types
@@ -0,0 +1,36 @@
+=== /node_modules/foo/index.d.ts ===
+export = foo;
+>foo : any
+
+declare namespace foo {
+>foo : typeof foo
+
+    export type T = number;
+>T : number
+}
+
+=== /a.ts ===
+import * as foo from "foo";
+>foo : typeof foo
+
+declare module "foo" {
+>"foo" : typeof foo
+
+    export function f(): T; // OK
+>f : () => number
+>T : number
+}
+
+=== /b.ts ===
+import * as foo from "foo";
+>foo : typeof foo
+
+declare module "foo" {
+>"foo" : typeof foo
+
+    export function g(): foo.T; // OK
+>g : () => number
+>foo : any
+>T : number
+}
+
diff --git a/tests/cases/compiler/exportAssignmentMembersVisibleInAugmentation.ts b/tests/cases/compiler/exportAssignmentMembersVisibleInAugmentation.ts
new file mode 100644
index 00000000000..72ac174b044
--- /dev/null
+++ b/tests/cases/compiler/exportAssignmentMembersVisibleInAugmentation.ts
@@ -0,0 +1,19 @@
+// @declaration: true
+
+// @Filename: /node_modules/foo/index.d.ts
+export = foo;
+declare namespace foo {
+    export type T = number;
+}
+
+// @Filename: /a.ts
+import * as foo from "foo";
+declare module "foo" {
+    export function f(): T; // OK
+}
+
+// @Filename: /b.ts
+import * as foo from "foo";
+declare module "foo" {
+    export function g(): foo.T; // OK
+}