1 files changed, 87 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/peterh/liner/width_test.go b/Godeps/_workspace/src/github.com/peterh/liner/width_test.go
new file mode 100644
index 000000000..134920a4b
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/peterh/liner/width_test.go
@@ -0,0 +1,87 @@
+package liner
+
+import (
+	"strconv"
+	"testing"
+)
+
+func accent(in []rune) []rune {
+	var out []rune
+	for _, r := range in {
+		out = append(out, r)
+		out = append(out, '\u0301')
+	}
+	return out
+}
+
+var testString = []rune("query")
+
+func TestCountGlyphs(t *testing.T) {
+	count := countGlyphs(testString)
+	if count != len(testString) {
+		t.Errorf("ASCII count incorrect. %d != %d", count, len(testString))
+	}
+	count = countGlyphs(accent(testString))
+	if count != len(testString) {
+		t.Errorf("Accent count incorrect. %d != %d", count, len(testString))
+	}
+}
+
+func compare(a, b []rune, name string, t *testing.T) {
+	if len(a) != len(b) {
+		t.Errorf(`"%s" != "%s" in %s"`, string(a), string(b), name)
+		return
+	}
+	for i := range a {
+		if a[i] != b[i] {
+			t.Errorf(`"%s" != "%s" in %s"`, string(a), string(b), name)
+			return
+		}
+	}
+}
+
+func TestPrefixGlyphs(t *testing.T) {
+	for i := 0; i <= len(testString); i++ {
+		iter := strconv.Itoa(i)
+		out := getPrefixGlyphs(testString, i)
+		compare(out, testString[:i], "ascii prefix "+iter, t)
+		out = getPrefixGlyphs(accent(testString), i)
+		compare(out, accent(testString[:i]), "accent prefix "+iter, t)
+	}
+	out := getPrefixGlyphs(testString, 999)
+	compare(out, testString, "ascii prefix overflow", t)
+	out = getPrefixGlyphs(accent(testString), 999)
+	compare(out, accent(testString), "accent prefix overflow", t)
+
+	out = getPrefixGlyphs(testString, -3)
+	if len(out) != 0 {
+		t.Error("ascii prefix negative")
+	}
+	out = getPrefixGlyphs(accent(testString), -3)
+	if len(out) != 0 {
+		t.Error("accent prefix negative")
+	}
+}
+
+func TestSuffixGlyphs(t *testing.T) {
+	for i := 0; i <= len(testString); i++ {
+		iter := strconv.Itoa(i)
+		out := getSuffixGlyphs(testString, i)
+		compare(out, testString[len(testString)-i:], "ascii suffix "+iter, t)
+		out = getSuffixGlyphs(accent(testString), i)
+		compare(out, accent(testString[len(testString)-i:]), "accent suffix "+iter, t)
+	}
+	out := getSuffixGlyphs(testString, 999)
+	compare(out, testString, "ascii suffix overflow", t)
+	out = getSuffixGlyphs(accent(testString), 999)
+	compare(out, accent(testString), "accent suffix overflow", t)
+
+	out = getSuffixGlyphs(testString, -3)
+	if len(out) != 0 {
+		t.Error("ascii suffix negative")
+	}
+	out = getSuffixGlyphs(accent(testString), -3)
+	if len(out) != 0 {
+		t.Error("accent suffix negative")
+	}
+}