Bugfix for unicode characters in commit message

Test: Regression tests included

Change-Id: I92d4bc0a2962d8dd9d9a3c6fde53d7fbd37891e2

tools/repo_diff/service/repodiff/controllers/regression_test.go

@@ -0,0 +1,31 @@
+package controllers
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	cst "repodiff/constants"
+	ent "repodiff/entities"
+	"repodiff/repositories"
+)
+
+func TestRegressionIncorrectStringValue(t *testing.T) {
+	commitRows, _ := CSVFileToCommitRows("testdata/commit.csv")
+	analyzed := make([]ent.AnalyzedCommitRow, len(commitRows))
+	for i, row := range commitRows {
+		analyzed[i] = ent.AnalyzedCommitRow{
+			CommitRow: row,
+			Type:      cst.Empty,
+		}
+	}
+
+	c, _ := repositories.NewCommitRepository(
+		ent.MappedDiffTarget{
+			UpstreamTarget:   1,
+			DownstreamTarget: 2,
+		},
+	)
+	err := c.InsertCommitRows(analyzed)
+	assert.Equal(t, nil, err, "Error should be nil")
+}