[Test] Adds a new test case

theblixguy · theblixguy · commit eca1c1fd66c2 · 2019-05-15T02:26:23.000+01:00
diff --git a/test/Constraints/tuple.swift b/test/Constraints/tuple.swift
@@ -299,3 +299,8 @@ func dupLabel2(x a: Int, x b: Int) -> (y: Int, y: Int) { // expected-error {{can
 }
 
 let _ = (bar: 0, bar: "") // expected-error {{cannot create a tuple with a duplicate element label}}
+
+let zeroTuple = (0,0)
+
+if case (foo: let x, foo: let y) = zeroTuple { print(x+y) } // expected-error {{cannot create a tuple with a duplicate element label}} 
+// expected-warning@-1 {{'if' condition is always true}}

Original file line number	Diff line number	Diff line change
`@@ -299,3 +299,8 @@ func dupLabel2(x a: Int, x b: Int) -> (y: Int, y: Int) { // expected-error {{can`
`299`	`299`	`}`
`300`	`300`
`301`	`301`	`let _ = (bar: 0, bar: "") // expected-error {{cannot create a tuple with a duplicate element label}}`
	`302`	`+`
	`303`	`+let zeroTuple = (0,0)`
	`304`	`+`
	`305`	`+if case (foo: let x, foo: let y) = zeroTuple { print(x+y) } // expected-error {{cannot create a tuple with a duplicate element label}}`
	`306`	`+// expected-warning@-1 {{'if' condition is always true}}`