io/ioutil: fix example test for WriteFile to allow it to run in the playground

The example for WriteFile assumed the existence of a testdata/ directory, which is not present on the playground. The example now writes the file to the current working directory, rather than to testdata/.

Fixes #32916

Change-Id: I577caac7e67ba9d9941b2dd19346ad5ff61e78d9
GitHub-Last-Rev: 40f14e0adc4ebc00fb2946fe0cbaf8e0cb99f62c
GitHub-Pull-Request: golang/go#43757
Reviewed-on: https://go-review.googlesource.com/c/go/+/284452
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Bryan C. Mills <bcmills@google.com>

diff --git a/src/io/ioutil/example_test.go b/src/io/ioutil/example_test.go
index bc2b6fba736098fe35997949592afe675415d652..78b0730c652a31e8c8a0d3742ab78d2d37fa675a 100644 (file)
--- a/src/io/ioutil/example_test.go
+++ b/src/io/ioutil/example_test.go
@@ -125,7 +125,7 @@ func ExampleReadFile() {
 
 func ExampleWriteFile() {
        message := []byte("Hello, Gophers!")
-       err := ioutil.WriteFile("testdata/hello", message, 0644)
+       err := ioutil.WriteFile("hello", message, 0644)
        if err != nil {
                log.Fatal(err)
        }