Checking in vendor folder for ease of using go get.

vendor/golang.org/x/text/width/tables_test.go

@@ -0,0 +1,59 @@
+// Copyright 2015 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 width
+
+import (
+	"testing"
+
+	"golang.org/x/text/internal/testtext"
+)
+
+const (
+	loSurrogate = 0xD800
+	hiSurrogate = 0xDFFF
+)
+
+func TestTables(t *testing.T) {
+	testtext.SkipIfNotLong(t)
+
+	runes := map[rune]Kind{}
+	getWidthData(func(r rune, tag elem, _ rune) {
+		runes[r] = tag.kind()
+	})
+	for r := rune(0); r < 0x10FFFF; r++ {
+		if loSurrogate <= r && r <= hiSurrogate {
+			continue
+		}
+		p := LookupRune(r)
+		if got, want := p.Kind(), runes[r]; got != want {
+			t.Errorf("Kind of %U was %s; want %s.", r, got, want)
+		}
+		want, mapped := foldRune(r)
+		if got := p.Folded(); (got == 0) == mapped || got != 0 && got != want {
+			t.Errorf("Folded(%U) = %U; want %U", r, got, want)
+		}
+		want, mapped = widenRune(r)
+		if got := p.Wide(); (got == 0) == mapped || got != 0 && got != want {
+			t.Errorf("Wide(%U) = %U; want %U", r, got, want)
+		}
+		want, mapped = narrowRune(r)
+		if got := p.Narrow(); (got == 0) == mapped || got != 0 && got != want {
+			t.Errorf("Narrow(%U) = %U; want %U", r, got, want)
+		}
+	}
+}
+
+// TestAmbiguous verifies that that ambiguous runes with a mapping always map to
+// a halfwidth rune.
+func TestAmbiguous(t *testing.T) {
+	for r, m := range mapRunes {
+		if m.e != tagAmbiguous {
+			continue
+		}
+		if k := mapRunes[m.r].e.kind(); k != EastAsianHalfwidth {
+			t.Errorf("Rune %U is ambiguous and maps to a rune of type %v", r, k)
+		}
+	}
+}