1 files changed, 145 insertions, 0 deletions
diff --git a/vendor/github.com/pelletier/go-buffruneio/buffruneio_test.go b/vendor/github.com/pelletier/go-buffruneio/buffruneio_test.go
new file mode 100644
index 000000000..67b0cba9b
--- /dev/null
+++ b/vendor/github.com/pelletier/go-buffruneio/buffruneio_test.go
@@ -0,0 +1,145 @@
+package buffruneio
+
+import (
+	"runtime/debug"
+	"strings"
+	"testing"
+)
+
+func assertNoError(t *testing.T, err error) {
+	if err != nil {
+		t.Log("unexpected error", err)
+		debug.PrintStack()
+		t.FailNow()
+	}
+}
+
+func assumeRunesArray(t *testing.T, expected []rune, got []rune) {
+	if len(expected) != len(got) {
+		t.Fatal("expected", len(expected), "runes, but got", len(got))
+	}
+	for i := 0; i < len(got); i++ {
+		if expected[i] != got[i] {
+			t.Fatal("expected rune", expected[i], "at index", i, "but got", got[i])
+		}
+	}
+}
+
+func assumeRune(t *testing.T, rd *Reader, r rune) {
+	gotRune, size, err := rd.ReadRune()
+	assertNoError(t, err)
+	if gotRune != r {
+		t.Fatal("got", string(gotRune),
+			"(", []byte(string(gotRune)), ")",
+			"expected", string(r),
+			"(", []byte(string(r)), ")")
+		t.Fatal("got size", size,
+			"expected", len([]byte(string(r))))
+	}
+}
+
+func TestReadString(t *testing.T) {
+	s := "hello"
+	rd := NewReader(strings.NewReader(s))
+
+	assumeRune(t, rd, 'h')
+	assumeRune(t, rd, 'e')
+	assumeRune(t, rd, 'l')
+	assumeRune(t, rd, 'l')
+	assumeRune(t, rd, 'o')
+	assumeRune(t, rd, EOF)
+}
+
+func TestMultipleEOF(t *testing.T) {
+	s := ""
+	rd := NewReader(strings.NewReader(s))
+
+	assumeRune(t, rd, EOF)
+	assumeRune(t, rd, EOF)
+}
+
+func TestUnread(t *testing.T) {
+	s := "ab"
+	rd := NewReader(strings.NewReader(s))
+
+	assumeRune(t, rd, 'a')
+	assumeRune(t, rd, 'b')
+	assertNoError(t, rd.UnreadRune())
+	assumeRune(t, rd, 'b')
+	assumeRune(t, rd, EOF)
+}
+
+func TestUnreadEOF(t *testing.T) {
+	s := ""
+	rd := NewReader(strings.NewReader(s))
+
+	_ = rd.UnreadRune()
+	assumeRune(t, rd, EOF)
+	assumeRune(t, rd, EOF)
+	assertNoError(t, rd.UnreadRune())
+	assumeRune(t, rd, EOF)
+}
+
+func TestForget(t *testing.T) {
+	s := "hello"
+	rd := NewReader(strings.NewReader(s))
+
+	assumeRune(t, rd, 'h')
+	assumeRune(t, rd, 'e')
+	assumeRune(t, rd, 'l')
+	assumeRune(t, rd, 'l')
+	rd.Forget()
+	if rd.UnreadRune() != ErrNoRuneToUnread {
+		t.Fatal("no rune should be available")
+	}
+}
+
+func TestForgetEmpty(t *testing.T) {
+	s := ""
+	rd := NewReader(strings.NewReader(s))
+
+	rd.Forget()
+	assumeRune(t, rd, EOF)
+	rd.Forget()
+}
+
+func TestPeekEmpty(t *testing.T) {
+	s := ""
+	rd := NewReader(strings.NewReader(s))
+
+	runes := rd.PeekRunes(1)
+	if len(runes) != 1 {
+		t.Fatal("incorrect number of runes", len(runes))
+	}
+	if runes[0] != EOF {
+		t.Fatal("incorrect rune", runes[0])
+	}
+}
+
+func TestPeek(t *testing.T) {
+	s := "a"
+	rd := NewReader(strings.NewReader(s))
+
+	runes := rd.PeekRunes(1)
+	assumeRunesArray(t, []rune{'a'}, runes)
+
+	runes = rd.PeekRunes(1)
+	assumeRunesArray(t, []rune{'a'}, runes)
+
+	assumeRune(t, rd, 'a')
+	runes = rd.PeekRunes(1)
+	assumeRunesArray(t, []rune{EOF}, runes)
+
+	assumeRune(t, rd, EOF)
+}
+
+func TestPeekLarge(t *testing.T) {
+	s := "abcdefg"
+	rd := NewReader(strings.NewReader(s))
+
+	runes := rd.PeekRunes(100)
+	if len(runes) != len(s)+1 {
+		t.Fatal("incorrect number of runes", len(runes))
+	}
+	assumeRunesArray(t, []rune{'a', 'b', 'c', 'd', 'e', 'f', 'g', EOF}, runes)
+}