Add repro case for issue 145

(Which is an exception thrown while drawing UTF8 text)

3 files changed, 66 insertions, 0 deletions

diff --git a/tests/fuzzer/README.md b/tests/fuzzer/README.md
new file mode 100644
index 0000000..e01467d
--- /dev/null
+++ b/tests/fuzzer/README.md
@@ -0,0 +1,27 @@
+This directory contains files to help reproduce issue 145
+
+fuzzer.go generates random strings of UTF-encoded characters.
+
+issue145repro.txt - some text from a run of fuzzer.go.
+
+Created by ./fuzzer | head -c 983 | tail -c 6 >issue145repro.txt
+
+This is a minimal repro case for
+
+https://github.com/jackpal/Android-Terminal-Emulator/issues/145
+
+Repro steps
+-----------
+
+On a PC:
+
+adb shell mkdir /data/local
+adb push issue145repro.txt /data/local/issue145repro.txt
+
+Run ATE
+
+Configure ATE's preferences for UTF8
+
+On ATE:
+
+cat /data/local/issue145repro.txt
diff --git a/tests/fuzzer/fuzz.txt b/tests/fuzzer/fuzz.txt
new file mode 100644
index 0000000..d5ed584
--- /dev/null
+++ b/tests/fuzzer/fuzz.txt
@@ -0,0 +1,2 @@
+𬘴
+(
\ No newline at end of file
diff --git a/tests/fuzzer/fuzzer.go b/tests/fuzzer/fuzzer.go
new file mode 100644
index 0000000..250a42e
--- /dev/null
+++ b/tests/fuzzer/fuzzer.go
@@ -0,0 +1,37 @@
+// Generate a repatable string of characters for fuzz testing.
+
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"unicode"
+)
+
+func main() {
+	source := rand.NewSource(17)
+	r := rand.New(source)
+
+	for {
+		switch r.Intn(4) {
+		case 0:
+			if r.Intn(20) == 0 {
+				fmt.Printf("\n")
+			} else {
+				out(r, 32, 128)
+			}
+		case 1:
+			out(r, 128, 256)
+		case 2:
+			out(r, 256, 0x10000)
+		default:
+			out(r, 0x10000, unicode.MaxRune)
+		}
+	}
+}
+
+func out(r *rand.Rand, begin, end int) {
+	var c rune
+	c = (rune)(r.Intn(end-begin) + begin)
+	fmt.Printf("%c", c)
+}