1 files changed, 42 insertions, 0 deletions
diff --git a/vendor/github.com/tdewolff/parse/position_test.go b/vendor/github.com/tdewolff/parse/position_test.go
new file mode 100644
index 0000000..eb1e4e5
--- /dev/null
+++ b/vendor/github.com/tdewolff/parse/position_test.go
@@ -0,0 +1,42 @@
+package parse
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"testing"
+
+	"github.com/tdewolff/test"
+)
+
+func TestPosition(t *testing.T) {
+	var newlineTests = []struct {
+		offset int
+		buf    string
+		line   int
+		col    int
+		err    error
+	}{
+		{0, "x", 1, 1, nil},
+		{1, "xx", 1, 2, nil},
+		{2, "x\nx", 2, 1, nil},
+		{2, "\n\nx", 3, 1, nil},
+		{3, "\nxxx", 2, 3, nil},
+		{2, "\r\nx", 2, 1, nil},
+
+		// edge cases
+		{0, "", 1, 1, io.EOF},
+		{0, "\n", 1, 1, nil},
+		{1, "\r\n", 1, 2, nil},
+		{-1, "x", 1, 2, io.EOF}, // continue till the end
+	}
+	for _, tt := range newlineTests {
+		t.Run(fmt.Sprint(tt.buf, " ", tt.offset), func(t *testing.T) {
+			r := bytes.NewBufferString(tt.buf)
+			line, col, _, err := Position(r, tt.offset)
+			test.T(t, err, tt.err)
+			test.T(t, line, tt.line, "line")
+			test.T(t, col, tt.col, "column")
+		})
+	}
+}