Add utils MustGetFileAsString and GetNumberOfLeftSpaces.

editorconfig/utils_test.go

@@ -2,6 +2,7 @@ package editorconfig
 
 import (
 	"reflect"
+	"strconv"
 	"strings"
 	"testing"
 )
@@ -25,3 +26,18 @@ func TestSplitIntoLines(t *testing.T) {
 		t.Error("Did not split string into lines correctly, got lines: " + strings.Join(result, ", "))
 	}
 }
+
+func TestMustGetFileAsString(t *testing.T) {
+	license := MustGetFileAsString("../LICENSE")
+	if !strings.Contains(license, "MIT License") || !strings.Contains(license, "THE SOFTWARE IS PROVIDED \"AS IS\"") {
+		t.Error("Could not read file")
+	}
+}
+
+func TestGetNumberOfLeftSpaces(t *testing.T) {
+	for i := 0; i < 20; i++ {
+		if GetNumberOfLeftSpaces(strings.Repeat(" ", i)) != i {
+			t.Error("Wrong number of spaces returned when string starts with " + strconv.Itoa(i) + " spaces")
+		}
+	}
+}