diff --git a/model/Db.cpp b/model/Db.cpp
index 24f403a..e9efa15 100644
--- a/model/Db.cpp
+++ b/model/Db.cpp
@@ -231,14 +231,14 @@ namespace glabels
 		{
 			if ( !id.isNull() && !id.isEmpty() )
 			{
-				if ( id == "roll" )
-				{
-					return tr("Roll");
-				}
-				else
+				if ( id == "other" )
 				{
 					return tr("Other");
 				}
+				else if ( id == "roll" )
+				{
+					return tr("Roll");
+				}
 
 				const Paper *paper = lookupPaperFromId( id );
 				if ( paper != nullptr )
diff --git a/model/StrUtil.cpp b/model/StrUtil.cpp
index 7545809..a5fe6c1 100644
--- a/model/StrUtil.cpp
+++ b/model/StrUtil.cpp
@@ -66,7 +66,7 @@ namespace glabels
 				if ( denom[i] == 1.0 )
 				{
 					/* Simple integer. */
-					return QString().arg(x, 0, 'f', 0);
+					return QString("%1").arg(x, 0, 'f', 0);
 				}
 				auto n = int( x * denom[i] + 0.5 );
 				auto d = int( denom[i] );
diff --git a/model/unit_tests/CMakeLists.txt b/model/unit_tests/CMakeLists.txt
index 5aca82b..3c1300d 100644
--- a/model/unit_tests/CMakeLists.txt
+++ b/model/unit_tests/CMakeLists.txt
@@ -96,4 +96,12 @@ if (Qt6Test_FOUND)
   target_link_libraries (TestVariables Model Qt6::Test)
   add_test (NAME Variables COMMAND TestVariables)
 
+  #=======================================
+  # Test StrUtil class
+  #=======================================
+  qt6_wrap_cpp (TestStrUtil_moc_sources TestStrUtil.h)
+  add_executable (TestStrUtil TestStrUtil.cpp ${TestStrUtil_moc_sources})
+  target_link_libraries (TestStrUtil Model Qt6::Test)
+  add_test (NAME StrUtil COMMAND TestStrUtil)
+
 endif (Qt6Test_FOUND)
diff --git a/model/unit_tests/TestStrUtil.cpp b/model/unit_tests/TestStrUtil.cpp
new file mode 100644
index 0000000..b40a551
--- /dev/null
+++ b/model/unit_tests/TestStrUtil.cpp
@@ -0,0 +1,54 @@
+/*  TestColorNode.cpp
+ *
+ *  Copyright (C) 2019  Jaye Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "TestStrUtil.h"
+
+#include "model/StrUtil.h"
+
+#include <QtDebug>
+
+
+QTEST_MAIN(TestStrUtil)
+
+
+using namespace glabels::model;
+
+
+void TestStrUtil::formatFraction()
+{
+	QCOMPARE( StrUtil::formatFraction( 3.5 ),       QString( "3¹/₂" ) );
+	QCOMPARE( StrUtil::formatFraction( 11.5 ),      QString( "11¹/₂" ) );
+	QCOMPARE( StrUtil::formatFraction( 0.5 ),       QString( "¹/₂" ) );
+	QCOMPARE( StrUtil::formatFraction( 1.25 ),      QString( "1¹/₄" ) );
+	QCOMPARE( StrUtil::formatFraction( 2.125 ),     QString( "2¹/₈" ) );
+	QCOMPARE( StrUtil::formatFraction( 2.875 ),     QString( "2⁷/₈" ) );
+	QCOMPARE( StrUtil::formatFraction( 3.875 ),     QString( "3⁷/₈" ) );
+	QCOMPARE( StrUtil::formatFraction( 4.0625 ),    QString( "4¹/₁₆" ) );
+	QCOMPARE( StrUtil::formatFraction( 5.3125 ),    QString( "5⁵/₁₆" ) );
+	QCOMPARE( StrUtil::formatFraction( 6.03125 ),   QString( "6¹/₃₂" ) );
+	QCOMPARE( StrUtil::formatFraction( 7.84375 ),   QString( "7²⁷/₃₂" ) );
+
+	QCOMPARE( StrUtil::formatFraction( 0 ),         QString( "0" ) );
+	QCOMPARE( StrUtil::formatFraction( 2 ),         QString( "2" ) );
+	QCOMPARE( StrUtil::formatFraction( 3 ),         QString( "3" ) );
+	QCOMPARE( StrUtil::formatFraction( 11 ),        QString( "11" ) );
+
+	QCOMPARE( StrUtil::formatFraction( 3.1415926 ), QString( "3.142" ) );
+}
diff --git a/model/unit_tests/TestStrUtil.h b/model/unit_tests/TestStrUtil.h
new file mode 100644
index 0000000..13183af
--- /dev/null
+++ b/model/unit_tests/TestStrUtil.h
@@ -0,0 +1,30 @@
+/*  TestColorNode.h
+ *
+ *  Copyright (C) 2019  Jaye Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QtTest/QtTest>
+
+
+class TestStrUtil : public QObject
+{
+	Q_OBJECT
+
+private slots:
+	void formatFraction();
+};