diff --git a/tree/dataframe/test/dataframe_display.cxx b/tree/dataframe/test/dataframe_display.cxx
index 2018b10e25daa..88e22b0d8e0a4 100644
--- a/tree/dataframe/test/dataframe_display.cxx
+++ b/tree/dataframe/test/dataframe_display.cxx
@@ -9,56 +9,54 @@ using namespace ROOT;
 using namespace ROOT::RDF;
 using namespace ROOT::VecOps;
 
-static const std::string DisplayPrintDefaultRows("+-----+----+----+-----------+\n"
-                                                 "| Row | b1 | b2 | b3        | \n"
-                                                 "+-----+----+----+-----------+\n"
-                                                 "| 0   | 0  | 1  | 2.0000000 | \n"
-                                                 "|     |    | 2  |           | \n"
-                                                 "|     |    | 3  |           | \n"
-                                                 "+-----+----+----+-----------+\n"
-                                                 "| 1   | 0  | 1  | 2.0000000 | \n"
-                                                 "|     |    | 2  |           | \n"
-                                                 "|     |    | 3  |           | \n"
-                                                 "+-----+----+----+-----------+\n"
-                                                 "| 2   | 0  | 1  | 2.0000000 | \n"
-                                                 "|     |    | 2  |           | \n"
-                                                 "|     |    | 3  |           | \n"
-                                                 "+-----+----+----+-----------+\n"
-                                                 "| 3   | 0  | 1  | 2.0000000 | \n"
-                                                 "|     |    | 2  |           | \n"
-                                                 "|     |    | 3  |           | \n"
-                                                 "+-----+----+----+-----------+\n"
-                                                 "| 4   | 0  | 1  | 2.0000000 | \n"
-                                                 "|     |    | 2  |           | \n"
-                                                 "|     |    | 3  |           | \n"
-                                                 "+-----+----+----+-----------+\n"
-);
-
-static const std::string DisplayAsStringDefaultRows("+-----+----+----+-----------+\n"
-                                                    "| Row | b1 | b2 | b3        | \n"
-                                                    "+-----+----+----+-----------+\n"
-                                                    "| 0   | 0  | 1  | 2.0000000 | \n"
-                                                    "|     |    | 2  |           | \n"
-                                                    "|     |    | 3  |           | \n"
-                                                    "+-----+----+----+-----------+\n"
-                                                    "| 1   | 0  | 1  | 2.0000000 | \n"
-                                                    "|     |    | 2  |           | \n"
-                                                    "|     |    | 3  |           | \n"
-                                                    "+-----+----+----+-----------+\n"
-                                                    "| 2   | 0  | 1  | 2.0000000 | \n"
-                                                    "|     |    | 2  |           | \n"
-                                                    "|     |    | 3  |           | \n"
-                                                    "+-----+----+----+-----------+\n"
-                                                    "| 3   | 0  | 1  | 2.0000000 | \n"
-                                                    "|     |    | 2  |           | \n"
-                                                    "|     |    | 3  |           | \n"
-                                                    "+-----+----+----+-----------+\n"
-                                                    "| 4   | 0  | 1  | 2.0000000 | \n"
-                                                    "|     |    | 2  |           | \n"
-                                                    "|     |    | 3  |           | \n"
-                                                    "|     |    |    |           | \n"
-                                                    "+-----+----+----+-----------+\n"
-);
+static const std::string DisplayPrintDefaultRows("+-----+----+----+----------+\n"
+                                                 "| Row | b1 | b2 | b3       | \n"
+                                                 "+-----+----+----+----------+\n"
+                                                 "| 0   | 0  | 1  | 2.000000 | \n"
+                                                 "|     |    | 2  |          | \n"
+                                                 "|     |    | 3  |          | \n"
+                                                 "+-----+----+----+----------+\n"
+                                                 "| 1   | 0  | 1  | 2.000000 | \n"
+                                                 "|     |    | 2  |          | \n"
+                                                 "|     |    | 3  |          | \n"
+                                                 "+-----+----+----+----------+\n"
+                                                 "| 2   | 0  | 1  | 2.000000 | \n"
+                                                 "|     |    | 2  |          | \n"
+                                                 "|     |    | 3  |          | \n"
+                                                 "+-----+----+----+----------+\n"
+                                                 "| 3   | 0  | 1  | 2.000000 | \n"
+                                                 "|     |    | 2  |          | \n"
+                                                 "|     |    | 3  |          | \n"
+                                                 "+-----+----+----+----------+\n"
+                                                 "| 4   | 0  | 1  | 2.000000 | \n"
+                                                 "|     |    | 2  |          | \n"
+                                                 "|     |    | 3  |          | \n"
+                                                 "+-----+----+----+----------+\n");
+
+static const std::string DisplayAsStringDefaultRows("+-----+----+----+----------+\n"
+                                                    "| Row | b1 | b2 | b3       | \n"
+                                                    "+-----+----+----+----------+\n"
+                                                    "| 0   | 0  | 1  | 2.000000 | \n"
+                                                    "|     |    | 2  |          | \n"
+                                                    "|     |    | 3  |          | \n"
+                                                    "+-----+----+----+----------+\n"
+                                                    "| 1   | 0  | 1  | 2.000000 | \n"
+                                                    "|     |    | 2  |          | \n"
+                                                    "|     |    | 3  |          | \n"
+                                                    "+-----+----+----+----------+\n"
+                                                    "| 2   | 0  | 1  | 2.000000 | \n"
+                                                    "|     |    | 2  |          | \n"
+                                                    "|     |    | 3  |          | \n"
+                                                    "+-----+----+----+----------+\n"
+                                                    "| 3   | 0  | 1  | 2.000000 | \n"
+                                                    "|     |    | 2  |          | \n"
+                                                    "|     |    | 3  |          | \n"
+                                                    "+-----+----+----+----------+\n"
+                                                    "| 4   | 0  | 1  | 2.000000 | \n"
+                                                    "|     |    | 2  |          | \n"
+                                                    "|     |    | 3  |          | \n"
+                                                    "|     |    |    |          | \n"
+                                                    "+-----+----+----+----------+\n");
 
 TEST(RDFDisplayTests, DisplayNoJitDefaultRows)
 {
@@ -141,30 +139,30 @@ TEST(RDFDisplayTests, DisplayRegexDefaultRows)
    EXPECT_EQ(dd->AsString(), DisplayAsStringDefaultRows);
 }
 
-static const std::string DisplayPrintTwoRows("+-----+----+----+-----------+\n"
-                                             "| Row | b1 | b2 | b3        | \n"
-                                             "+-----+----+----+-----------+\n"
-                                             "| 0   | 0  | 1  | 2.0000000 | \n"
-                                             "|     |    | 2  |           | \n"
-                                             "|     |    | 3  |           | \n"
-                                             "+-----+----+----+-----------+\n"
-                                             "| 1   | 0  | 1  | 2.0000000 | \n"
-                                             "|     |    | 2  |           | \n"
-                                             "|     |    | 3  |           | \n"
-                                             "+-----+----+----+-----------+\n");
-
-static const std::string DisplayAsStringTwoRows("+-----+----+----+-----------+\n"
-                                                "| Row | b1 | b2 | b3        | \n"
-                                                "+-----+----+----+-----------+\n"
-                                                "| 0   | 0  | 1  | 2.0000000 | \n"
-                                                "|     |    | 2  |           | \n"
-                                                "|     |    | 3  |           | \n"
-                                                "+-----+----+----+-----------+\n"
-                                                "| 1   | 0  | 1  | 2.0000000 | \n"
-                                                "|     |    | 2  |           | \n"
-                                                "|     |    | 3  |           | \n"
-                                                "|     |    |    |           | \n"
-                                                "+-----+----+----+-----------+\n");
+static const std::string DisplayPrintTwoRows("+-----+----+----+----------+\n"
+                                             "| Row | b1 | b2 | b3       | \n"
+                                             "+-----+----+----+----------+\n"
+                                             "| 0   | 0  | 1  | 2.000000 | \n"
+                                             "|     |    | 2  |          | \n"
+                                             "|     |    | 3  |          | \n"
+                                             "+-----+----+----+----------+\n"
+                                             "| 1   | 0  | 1  | 2.000000 | \n"
+                                             "|     |    | 2  |          | \n"
+                                             "|     |    | 3  |          | \n"
+                                             "+-----+----+----+----------+\n");
+
+static const std::string DisplayAsStringTwoRows("+-----+----+----+----------+\n"
+                                                "| Row | b1 | b2 | b3       | \n"
+                                                "+-----+----+----+----------+\n"
+                                                "| 0   | 0  | 1  | 2.000000 | \n"
+                                                "|     |    | 2  |          | \n"
+                                                "|     |    | 3  |          | \n"
+                                                "+-----+----+----+----------+\n"
+                                                "| 1   | 0  | 1  | 2.000000 | \n"
+                                                "|     |    | 2  |          | \n"
+                                                "|     |    | 3  |          | \n"
+                                                "|     |    |    |          | \n"
+                                                "+-----+----+----+----------+\n");
 
 TEST(RDFDisplayTests, DisplayJitTwoRows)
 {
diff --git a/tree/dataframe/test/datasource_csv.cxx b/tree/dataframe/test/datasource_csv.cxx
index 11d528a2a991e..8aa008d008670 100644
--- a/tree/dataframe/test/datasource_csv.cxx
+++ b/tree/dataframe/test/datasource_csv.cxx
@@ -390,34 +390,34 @@ TEST(RCsvDS, NanWarningChecks)
 
    ROOT_EXPECT_WARNING(d->AsString(), "RCsvDS", Warn);
 
-   const std::string AsString = "+-----+------------+-------+------+----------------+\n"
-                                "| Row | col1       | col3  | col6 | col8           | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 0   | 3.1400000  | false | 0    | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 1   | 4.1400000  | false | 2    | \"R,Data,Frame\" | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 2   | nan        | true  | 3    | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 3   | 5.1400000  | true  | 4    | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 4   | -6.1400000 | true  | 5    | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 5   | -7.1400000 | true  | 6    | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 6   | nan        | true  | 7    | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 7   | nan        | true  | 8    | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 8   | 3.1500000  | true  | 9    | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 9   | 5.1500000  | true  | 10   | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 10  | 6.1500000  | true  | 11   | \"nan\"          | \n"
-                                "+-----+------------+-------+------+----------------+\n"
-                                "| 11  | 6.1500000  | true  | 12   | \"nan\"          | \n"
-                                "|     |            |       |      |                | \n"
-                                "+-----+------------+-------+------+----------------+\n";
+   const std::string AsString = "+-----+-----------+-------+------+----------------+\n"
+                                "| Row | col1      | col3  | col6 | col8           | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 0   | 3.140000  | false | 0    | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 1   | 4.140000  | false | 2    | \"R,Data,Frame\" | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 2   | nan       | true  | 3    | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 3   | 5.140000  | true  | 4    | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 4   | -6.140000 | true  | 5    | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 5   | -7.140000 | true  | 6    | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 6   | nan       | true  | 7    | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 7   | nan       | true  | 8    | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 8   | 3.150000  | true  | 9    | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 9   | 5.150000  | true  | 10   | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 10  | 6.150000  | true  | 11   | \"nan\"          | \n"
+                                "+-----+-----------+-------+------+----------------+\n"
+                                "| 11  | 6.150000  | true  | 12   | \"nan\"          | \n"
+                                "|     |           |       |      |                | \n"
+                                "+-----+-----------+-------+------+----------------+\n";
 
    EXPECT_EQ(d->AsString(), AsString);
 }