tests: repair TestNSData/test_writeToURLSpecialFile (#3044)

compnerd · web-flow · commit d7d5710fc3ba · 2021-08-14T12:28:29.000-07:00
This test was added recently and regressed the test suite on Windows.
Windows does not have a devfs mounted at `/dev`.  Use the `CON` special
file which is roughly equivalent to `/dev/stdout` to emulate the desired
test behaviour.
diff --git a/Tests/Foundation/Tests/TestNSData.swift b/Tests/Foundation/Tests/TestNSData.swift
@@ -625,7 +625,11 @@ class TestNSData: LoopbackServerTest {
     }
 
     func test_writeToURLSpecialFile() {
+#if os(Windows)
+        let url = URL(fileURLWithPath: "CON")
+#else
         let url = URL(fileURLWithPath: "/dev/stdout")
+#endif
         XCTAssertNoThrow(try Data("Output to STDOUT\n".utf8).write(to: url))
     }
 

Original file line number	Diff line number	Diff line change
`@@ -625,7 +625,11 @@ class TestNSData: LoopbackServerTest {`
`625`	`625`	`}`
`626`	`626`
`627`	`627`	`func test_writeToURLSpecialFile() {`
	`628`	`+#if os(Windows)`
	`629`	`+ let url = URL(fileURLWithPath: "CON")`
	`630`	`+#else`
`628`	`631`	`let url = URL(fileURLWithPath: "/dev/stdout")`
	`632`	`+#endif`
`629`	`633`	`XCTAssertNoThrow(try Data("Output to STDOUT\n".utf8).write(to: url))`
`630`	`634`	`}`
`631`	`635`