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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
commit | 43a123c1ae6613b3efeed291fa552ecd909d3acf (patch) | |
tree | fd92518b7024bc74031f78a1cf9e454b65e73665 /test/recover2.go | |
parent | Initial commit. (diff) | |
download | golang-1.20-upstream.tar.xz golang-1.20-upstream.zip |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/recover2.go')
-rw-r--r-- | test/recover2.go | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/test/recover2.go b/test/recover2.go new file mode 100644 index 0000000..31c06ba --- /dev/null +++ b/test/recover2.go @@ -0,0 +1,85 @@ +// run + +// Copyright 2010 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Test of recover for run-time errors. + +// TODO(rsc): +// null pointer accesses + +package main + +import "strings" + +var x = make([]byte, 10) + +func main() { + test1() + test2() + test3() + test4() + test5() + test6() + test7() +} + +func mustRecover(s string) { + v := recover() + if v == nil { + panic("expected panic") + } + if e := v.(error).Error(); strings.Index(e, s) < 0 { + panic("want: " + s + "; have: " + e) + } +} + +func test1() { + defer mustRecover("index") + println(x[123]) +} + +func test2() { + defer mustRecover("slice") + println(x[5:15]) +} + +func test3() { + defer mustRecover("slice") + var lo = 11 + var hi = 9 + println(x[lo:hi]) +} + +func test4() { + defer mustRecover("interface") + var x interface{} = 1 + println(x.(float32)) +} + +type T struct { + a, b int + c []int +} + +func test5() { + defer mustRecover("uncomparable") + var x T + var z interface{} = x + println(z != z) +} + +func test6() { + defer mustRecover("unhashable type main.T") + var x T + var z interface{} = x + m := make(map[interface{}]int) + m[z] = 1 +} + +func test7() { + defer mustRecover("divide by zero") + var x, y int + println(x / y) +} |