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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:23:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:23:18 +0000
commit43a123c1ae6613b3efeed291fa552ecd909d3acf (patch)
treefd92518b7024bc74031f78a1cf9e454b65e73665 /test/recover2.go
parentInitial commit. (diff)
downloadgolang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.tar.xz
golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.zip
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--test/recover2.go85
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)
+}