1 files changed, 126 insertions, 0 deletions
diff --git a/src/unicode/digit_test.go b/src/unicode/digit_test.go
new file mode 100644
index 000000000..551c42a24
--- /dev/null
+++ b/src/unicode/digit_test.go
@@ -0,0 +1,126 @@
+// Copyright 2009 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.
+
+package unicode_test
+
+import (
+	"testing"
+	. "unicode"
+)
+
+var testDigit = []rune{
+	0x0030,
+	0x0039,
+	0x0661,
+	0x06F1,
+	0x07C9,
+	0x0966,
+	0x09EF,
+	0x0A66,
+	0x0AEF,
+	0x0B66,
+	0x0B6F,
+	0x0BE6,
+	0x0BEF,
+	0x0C66,
+	0x0CEF,
+	0x0D66,
+	0x0D6F,
+	0x0E50,
+	0x0E59,
+	0x0ED0,
+	0x0ED9,
+	0x0F20,
+	0x0F29,
+	0x1040,
+	0x1049,
+	0x1090,
+	0x1091,
+	0x1099,
+	0x17E0,
+	0x17E9,
+	0x1810,
+	0x1819,
+	0x1946,
+	0x194F,
+	0x19D0,
+	0x19D9,
+	0x1B50,
+	0x1B59,
+	0x1BB0,
+	0x1BB9,
+	0x1C40,
+	0x1C49,
+	0x1C50,
+	0x1C59,
+	0xA620,
+	0xA629,
+	0xA8D0,
+	0xA8D9,
+	0xA900,
+	0xA909,
+	0xAA50,
+	0xAA59,
+	0xFF10,
+	0xFF19,
+	0x104A1,
+	0x1D7CE,
+}
+
+var testLetter = []rune{
+	0x0041,
+	0x0061,
+	0x00AA,
+	0x00BA,
+	0x00C8,
+	0x00DB,
+	0x00F9,
+	0x02EC,
+	0x0535,
+	0x06E6,
+	0x093D,
+	0x0A15,
+	0x0B99,
+	0x0DC0,
+	0x0EDD,
+	0x1000,
+	0x1200,
+	0x1312,
+	0x1401,
+	0x1885,
+	0x2C00,
+	0xA800,
+	0xF900,
+	0xFA30,
+	0xFFDA,
+	0xFFDC,
+	0x10000,
+	0x10300,
+	0x10400,
+	0x20000,
+	0x2F800,
+	0x2FA1D,
+}
+
+func TestDigit(t *testing.T) {
+	for _, r := range testDigit {
+		if !IsDigit(r) {
+			t.Errorf("IsDigit(U+%04X) = false, want true", r)
+		}
+	}
+	for _, r := range testLetter {
+		if IsDigit(r) {
+			t.Errorf("IsDigit(U+%04X) = true, want false", r)
+		}
+	}
+}
+
+// Test that the special case in IsDigit agrees with the table
+func TestDigitOptimization(t *testing.T) {
+	for i := rune(0); i <= MaxLatin1; i++ {
+		if Is(Digit, i) != IsDigit(i) {
+			t.Errorf("IsDigit(U+%04X) disagrees with Is(Digit)", i)
+		}
+	}
+}