diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 1d4fc8b..53aabcc 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -30,7 +30,7 @@ jobs:
         run: mvn --batch-mode clean test
 
       - name: Test Coverage
-        uses: codecov/codecov-action@v4.0.1
+        uses: codecov/codecov-action@v5
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
diff --git a/pom.xml b/pom.xml
index 5cd605b..d6cf3f7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,8 +49,8 @@
         <maven.compiler.release>11</maven.compiler.release>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <lombok.version>1.18.28</lombok.version>
-        <checkerframework.version>3.32.0</checkerframework.version>
+        <lombok.version>1.18.38</lombok.version>
+        <checkerframework.version>3.49.2</checkerframework.version>
     </properties>
 
     <dependencies>
@@ -76,19 +76,19 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter</artifactId>
-            <version>5.9.2</version>
+            <version>5.12.2</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-junit-jupiter</artifactId>
-            <version>5.2.0</version>
+            <version>5.17.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>nl.jqno.equalsverifier</groupId>
             <artifactId>equalsverifier</artifactId>
-            <version>3.14.1</version>
+            <version>3.19.3</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
@@ -98,7 +98,7 @@
             <plugins>
                 <plugin>
                     <artifactId>maven-surefire-plugin</artifactId>
-                    <version>2.22.2</version> <!-- JUnit 5 requirement -->
+                    <version>3.5.3</version> <!-- JUnit 5 requirement -->
                 </plugin>
             </plugins>
         </pluginManagement>
@@ -106,7 +106,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.10.1</version>
+                <version>3.14.0</version>
                 <configuration>
                     <fork>true</fork> <!-- Must fork or else JVM arguments are ignored. -->
                     <showDeprecation>true</showDeprecation>
@@ -149,7 +149,7 @@
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.8.8</version>
+                <version>0.8.13</version>
                 <executions>
                     <execution>
                         <id>prepare-agent</id>
@@ -169,7 +169,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>3.2.1</version>
+                <version>3.3.1</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>
diff --git a/src/main/java/org/spacious_team/table_wrapper/api/ReportPage.java b/src/main/java/org/spacious_team/table_wrapper/api/ReportPage.java
index 8964ee4..f407a82 100644
--- a/src/main/java/org/spacious_team/table_wrapper/api/ReportPage.java
+++ b/src/main/java/org/spacious_team/table_wrapper/api/ReportPage.java
@@ -23,7 +23,7 @@
 import java.util.function.Predicate;
 
 import static java.util.Objects.requireNonNull;
-import static org.spacious_team.table_wrapper.api.ReportPageHelper.getCellStringValueIgnoreCasePrefixPredicate;
+import static org.spacious_team.table_wrapper.api.StringPrefixPredicate.ignoreCaseStringPrefixPredicateOnObject;
 
 @SuppressWarnings({"unused", "UnusedReturnValue"})
 public interface ReportPage {
@@ -157,7 +157,7 @@ default TableCellAddress findByPrefix(String prefix, int startRow, int endRow) {
     default TableCellAddress findByPrefix(@Nullable String prefix, int startRow, int endRow, int startColumn, int endColumn) {
         return (prefix == null || prefix.isEmpty()) ?
                 TableCellAddress.NOT_FOUND :
-                find(startRow, endRow, startColumn, endColumn, getCellStringValueIgnoreCasePrefixPredicate(prefix));
+                find(startRow, endRow, startColumn, endColumn, ignoreCaseStringPrefixPredicateOnObject(prefix));
     }
 
     /**
@@ -208,9 +208,9 @@ default TableCellRange getTableCellRange(@Nullable String firstRowPrefix,
             return TableCellRange.EMPTY_RANGE;
         }
         return getTableCellRange(
-                getCellStringValueIgnoreCasePrefixPredicate(firstRowPrefix),
+                ignoreCaseStringPrefixPredicateOnObject(firstRowPrefix),
                 headersRowCount,
-                getCellStringValueIgnoreCasePrefixPredicate(lastRowPrefix));
+                ignoreCaseStringPrefixPredicateOnObject(lastRowPrefix));
     }
 
     /**
@@ -250,7 +250,7 @@ default TableCellRange getTableCellRange(@Nullable String firstRowPrefix, int he
             return TableCellRange.EMPTY_RANGE;
         }
         return getTableCellRange(
-                getCellStringValueIgnoreCasePrefixPredicate(firstRowPrefix),
+                ignoreCaseStringPrefixPredicateOnObject(firstRowPrefix),
                 headersRowCount);
     }
 
diff --git a/src/main/java/org/spacious_team/table_wrapper/api/ReportPageHelper.java b/src/main/java/org/spacious_team/table_wrapper/api/ReportPageHelper.java
deleted file mode 100644
index 3fdcd65..0000000
--- a/src/main/java/org/spacious_team/table_wrapper/api/ReportPageHelper.java
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Table Wrapper API
- * Copyright (C) 2022  Spacious Team <spacious-team@ya.ru>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package org.spacious_team.table_wrapper.api;
-
-import lombok.EqualsAndHashCode;
-import lombok.RequiredArgsConstructor;
-import lombok.ToString;
-import org.checkerframework.checker.nullness.qual.Nullable;
-
-import java.util.function.Predicate;
-
-import static lombok.AccessLevel.PRIVATE;
-
-@RequiredArgsConstructor(access = PRIVATE)
-final class ReportPageHelper {
-
-    static Predicate<@Nullable Object> getCellStringValueIgnoreCasePrefixPredicate(String prefix) {
-        return new StringIgnoreCasePrefixPredicate(prefix);
-    }
-
-    @ToString
-    @EqualsAndHashCode
-    static final class StringIgnoreCasePrefixPredicate implements Predicate<@Nullable Object> {
-        private final String lowercasePrefix;
-
-        private StringIgnoreCasePrefixPredicate(String prefix) {
-            this.lowercasePrefix = prefix.trim().toLowerCase();
-        }
-
-        @Override
-        public boolean test(@Nullable Object cell) {
-            return (cell instanceof String) &&
-                    ((String) cell).trim().toLowerCase().startsWith(lowercasePrefix);
-        }
-    }
-}
diff --git a/src/main/java/org/spacious_team/table_wrapper/api/StringPrefixPredicate.java b/src/main/java/org/spacious_team/table_wrapper/api/StringPrefixPredicate.java
new file mode 100644
index 0000000..de2efd4
--- /dev/null
+++ b/src/main/java/org/spacious_team/table_wrapper/api/StringPrefixPredicate.java
@@ -0,0 +1,87 @@
+/*
+ * Table Wrapper API
+ * Copyright (C) 2022  Spacious Team <spacious-team@ya.ru>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.spacious_team.table_wrapper.api;
+
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.RequiredArgsConstructor;
+import lombok.ToString;
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+import java.util.function.Predicate;
+
+import static java.lang.Character.isWhitespace;
+import static lombok.AccessLevel.PRIVATE;
+
+@NoArgsConstructor(access = PRIVATE)
+public final class StringPrefixPredicate {
+
+    public static Predicate<@Nullable Object> ignoreCaseStringPrefixPredicateOnObject(CharSequence prefix) {
+        Predicate<CharSequence> predicate = ignoreCaseStringPrefixPredicate(prefix);
+        return PredicateOnObjectWrapper.of(predicate);
+    }
+
+    public static <T extends CharSequence> Predicate<T> ignoreCaseStringPrefixPredicate(CharSequence prefix) {
+        return new IgnoreCaseStringPrefixPredicate<>(prefix);
+    }
+
+
+    @ToString
+    @EqualsAndHashCode
+    @RequiredArgsConstructor(staticName = "of", access = PRIVATE)
+    static final class PredicateOnObjectWrapper implements Predicate<@Nullable Object> {
+        private final Predicate<CharSequence> predicate;
+
+        @Override
+        public boolean test(@Nullable Object o) {
+            return (o instanceof CharSequence) && predicate.test((CharSequence) o);
+        }
+    }
+
+
+    @ToString
+    @EqualsAndHashCode
+    static final class IgnoreCaseStringPrefixPredicate<T extends CharSequence> implements Predicate<T> {
+        private final String prefix;
+
+        private IgnoreCaseStringPrefixPredicate(CharSequence prefix) {
+            this.prefix = prefix.toString().strip();
+        }
+
+        @Override
+        public boolean test(T cs) {
+            int nonWhitespaceIndex = getIndexOfNonWhitespace(cs);
+            if (nonWhitespaceIndex == -1) {
+                return false;
+            }
+            String string = cs.toString();
+            return string.regionMatches(true, nonWhitespaceIndex, prefix, 0, prefix.length());
+        }
+
+        private static int getIndexOfNonWhitespace(CharSequence cs) {
+            for (int i = 0, n = cs.length(); i < n; i++) {
+                char c = cs.charAt(i);
+                if (!isWhitespace(c)) {
+                    return i;
+                }
+            }
+            return -1;
+        }
+    }
+}
diff --git a/src/main/java/org/spacious_team/table_wrapper/api/TableCell.java b/src/main/java/org/spacious_team/table_wrapper/api/TableCell.java
index bc7aeb9..0173886 100644
--- a/src/main/java/org/spacious_team/table_wrapper/api/TableCell.java
+++ b/src/main/java/org/spacious_team/table_wrapper/api/TableCell.java
@@ -19,6 +19,8 @@
 package org.spacious_team.table_wrapper.api;
 
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.nullness.qual.PolyNull;
+
 import java.math.BigDecimal;
 import java.time.Instant;
 import java.time.LocalDateTime;
@@ -125,7 +127,7 @@ default double getDoubleValueOrDefault(double defaultValue) {
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default BigDecimal getBigDecimalValueOrDefault(BigDecimal defaultValue) {
+    default @PolyNull BigDecimal getBigDecimalValueOrDefault(@PolyNull BigDecimal defaultValue) {
         try {
             return getBigDecimalValue();
         } catch (Exception e) {
@@ -136,7 +138,7 @@ default BigDecimal getBigDecimalValueOrDefault(BigDecimal defaultValue) {
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default String getStringValueOrDefault(String defaultValue) {
+    default @PolyNull String getStringValueOrDefault(@PolyNull String defaultValue) {
         try {
             return getStringValue();
         } catch (Exception e) {
@@ -147,7 +149,7 @@ default String getStringValueOrDefault(String defaultValue) {
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default Instant getInstantValueOrDefault(Instant defaultValue) {
+    default @PolyNull Instant getInstantValueOrDefault(@PolyNull Instant defaultValue) {
         try {
             return getInstantValue();
         } catch (Exception e) {
@@ -158,7 +160,7 @@ default Instant getInstantValueOrDefault(Instant defaultValue) {
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default LocalDateTime getLocalDateTimeValueOrDefault(LocalDateTime defaultValue) {
+    default @PolyNull LocalDateTime getLocalDateTimeValueOrDefault(@PolyNull LocalDateTime defaultValue) {
         try {
             return getLocalDateTimeValue();
         } catch (Exception e) {
@@ -169,7 +171,7 @@ default LocalDateTime getLocalDateTimeValueOrDefault(LocalDateTime defaultValue)
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default LocalDateTime getLocalDateTimeValueOrDefault(ZoneId zoneId, LocalDateTime defaultValue) {
+    default @PolyNull LocalDateTime getLocalDateTimeValueOrDefault(ZoneId zoneId, @PolyNull LocalDateTime defaultValue) {
         try {
             return getLocalDateTimeValue(zoneId);
         } catch (Exception e) {
diff --git a/src/main/java/org/spacious_team/table_wrapper/api/TableRow.java b/src/main/java/org/spacious_team/table_wrapper/api/TableRow.java
index 792ad54..9bd359f 100644
--- a/src/main/java/org/spacious_team/table_wrapper/api/TableRow.java
+++ b/src/main/java/org/spacious_team/table_wrapper/api/TableRow.java
@@ -19,6 +19,8 @@
 package org.spacious_team.table_wrapper.api;
 
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.nullness.qual.PolyNull;
+
 import java.math.BigDecimal;
 import java.time.Instant;
 import java.time.LocalDateTime;
@@ -128,7 +130,7 @@ default double getDoubleCellValueOrDefault(TableHeaderColumn column, double defa
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default BigDecimal getBigDecimalCellValueOrDefault(TableHeaderColumn column, BigDecimal defaultValue) {
+    default @PolyNull BigDecimal getBigDecimalCellValueOrDefault(TableHeaderColumn column, @PolyNull BigDecimal defaultValue) {
         try {
             return getBigDecimalCellValue(column);
         } catch (Exception e) {
@@ -139,7 +141,7 @@ default BigDecimal getBigDecimalCellValueOrDefault(TableHeaderColumn column, Big
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default String getStringCellValueOrDefault(TableHeaderColumn column, String defaultValue) {
+    default @PolyNull String getStringCellValueOrDefault(TableHeaderColumn column, @PolyNull String defaultValue) {
         try {
             return getStringCellValue(column);
         } catch (Exception e) {
@@ -150,7 +152,7 @@ default String getStringCellValueOrDefault(TableHeaderColumn column, String defa
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default Instant getInstantCellValueOrDefault(TableHeaderColumn column, Instant defaultValue) {
+    default @PolyNull Instant getInstantCellValueOrDefault(TableHeaderColumn column, @PolyNull Instant defaultValue) {
         try {
             return getInstantCellValue(column);
         } catch (Exception e) {
@@ -161,7 +163,7 @@ default Instant getInstantCellValueOrDefault(TableHeaderColumn column, Instant d
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default LocalDateTime getLocalDateTimeCellValueOrDefault(TableHeaderColumn column, LocalDateTime defaultValue) {
+    default @PolyNull LocalDateTime getLocalDateTimeCellValueOrDefault(TableHeaderColumn column, @PolyNull LocalDateTime defaultValue) {
         try {
             return getLocalDateTimeCellValue(column);
         } catch (Exception e) {
@@ -172,7 +174,7 @@ default LocalDateTime getLocalDateTimeCellValueOrDefault(TableHeaderColumn colum
     /**
      * @return return cell value or defaultValue if the cell is missing or the type does not match the expected
      */
-    default LocalDateTime getLocalDateTimeCellValueOrDefault(TableHeaderColumn column, ZoneId zoneId, LocalDateTime defaultValue) {
+    default @PolyNull LocalDateTime getLocalDateTimeCellValueOrDefault(TableHeaderColumn column, ZoneId zoneId, @PolyNull LocalDateTime defaultValue) {
         try {
             return getLocalDateTimeCellValue(column, zoneId);
         } catch (Exception e) {
diff --git a/src/test/java/org/spacious_team/table_wrapper/api/ReportPageHelperTest.java b/src/test/java/org/spacious_team/table_wrapper/api/ReportPageHelperTest.java
deleted file mode 100644
index 8e36ac1..0000000
--- a/src/test/java/org/spacious_team/table_wrapper/api/ReportPageHelperTest.java
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Table Wrapper API
- * Copyright (C) 2022  Spacious Team <spacious-team@ya.ru>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package org.spacious_team.table_wrapper.api;
-
-import nl.jqno.equalsverifier.EqualsVerifier;
-import org.junit.jupiter.api.Test;
-import org.spacious_team.table_wrapper.api.ReportPageHelper.StringIgnoreCasePrefixPredicate;
-
-import static org.junit.jupiter.api.Assertions.*;
-import static org.spacious_team.table_wrapper.api.ReportPageHelper.getCellStringValueIgnoreCasePrefixPredicate;
-
-class ReportPageHelperTest {
-
-    @Test
-    void test() {
-        assertTrue(getCellStringValueIgnoreCasePrefixPredicate("First").test("First second"));
-        assertTrue(getCellStringValueIgnoreCasePrefixPredicate("First").test("first second"));
-        assertTrue(getCellStringValueIgnoreCasePrefixPredicate("first").test("First second"));
-        assertTrue(getCellStringValueIgnoreCasePrefixPredicate("first").test("first second"));
-        assertTrue(getCellStringValueIgnoreCasePrefixPredicate("FIRST").test("first second"));
-        assertFalse(getCellStringValueIgnoreCasePrefixPredicate("First").test("One two"));
-        //noinspection ConstantConditions
-        assertFalse(getCellStringValueIgnoreCasePrefixPredicate("First").test(null));
-        assertFalse(getCellStringValueIgnoreCasePrefixPredicate("First").test(1));
-        assertFalse(getCellStringValueIgnoreCasePrefixPredicate("First").test(1.1));
-        assertFalse(getCellStringValueIgnoreCasePrefixPredicate("First").test(new Object()));
-    }
-
-    @Test
-    void testEqualsAndHashCode() {
-        EqualsVerifier
-                .forClass(StringIgnoreCasePrefixPredicate.class)
-                .verify();
-    }
-
-    @Test
-    void testToString() {
-        assertEquals(
-                "ReportPageHelper.StringIgnoreCasePrefixPredicate(lowercasePrefix=first)",
-                getCellStringValueIgnoreCasePrefixPredicate("First").toString());
-    }
-}
\ No newline at end of file
diff --git a/src/test/java/org/spacious_team/table_wrapper/api/ReportPageTest.java b/src/test/java/org/spacious_team/table_wrapper/api/ReportPageTest.java
index c850360..c040091 100644
--- a/src/test/java/org/spacious_team/table_wrapper/api/ReportPageTest.java
+++ b/src/test/java/org/spacious_team/table_wrapper/api/ReportPageTest.java
@@ -34,7 +34,7 @@
 import static org.junit.jupiter.api.Assertions.*;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.*;
-import static org.spacious_team.table_wrapper.api.ReportPageHelper.getCellStringValueIgnoreCasePrefixPredicate;
+import static org.spacious_team.table_wrapper.api.StringPrefixPredicate.ignoreCaseStringPrefixPredicateOnObject;
 import static org.spacious_team.table_wrapper.api.ReportPageRowHelper.cell;
 import static org.spacious_team.table_wrapper.api.ReportPageRowHelper.getRow;
 import static org.spacious_team.table_wrapper.api.TableCellAddress.NOT_FOUND;
@@ -50,8 +50,8 @@ class ReportPageTest {
     TableCellAddress address2 = TableCellAddress.of(3, 4);
     String prefix1 = "A";
     String prefix2 = "B";
-    Predicate<Object> predicate1 = getCellStringValueIgnoreCasePrefixPredicate(prefix1);
-    Predicate<Object> predicate2 = getCellStringValueIgnoreCasePrefixPredicate(prefix2);
+    Predicate<Object> predicate1 = ignoreCaseStringPrefixPredicateOnObject(prefix1);
+    Predicate<Object> predicate2 = ignoreCaseStringPrefixPredicateOnObject(prefix2);
     String tableName = "table name";
     String headerRow = "header row";
     String tableFooterString = "footer";
diff --git a/src/test/java/org/spacious_team/table_wrapper/api/StringPrefixPredicateTest.java b/src/test/java/org/spacious_team/table_wrapper/api/StringPrefixPredicateTest.java
new file mode 100644
index 0000000..a0ae803
--- /dev/null
+++ b/src/test/java/org/spacious_team/table_wrapper/api/StringPrefixPredicateTest.java
@@ -0,0 +1,135 @@
+/*
+ * Table Wrapper API
+ * Copyright (C) 2022  Spacious Team <spacious-team@ya.ru>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.spacious_team.table_wrapper.api;
+
+import nl.jqno.equalsverifier.EqualsVerifier;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.spacious_team.table_wrapper.api.StringPrefixPredicate.IgnoreCaseStringPrefixPredicate;
+import org.spacious_team.table_wrapper.api.StringPrefixPredicate.PredicateOnObjectWrapper;
+
+import java.util.function.Predicate;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.spacious_team.table_wrapper.api.StringPrefixPredicate.ignoreCaseStringPrefixPredicate;
+import static org.spacious_team.table_wrapper.api.StringPrefixPredicate.ignoreCaseStringPrefixPredicateOnObject;
+
+class StringPrefixPredicateTest {
+    
+    static Object[][] prefixAndMatchingString() {
+        return new Object[][]{
+                {"First", "First second"},
+                {"First", "first second"},
+                {"first", "First second"},
+                {"first", "first second"},
+                {"FIRST", "first second"},
+                {" FIRST", "first second"},
+                {" FIRST", "    first second"},
+                {"\tfirst\n", "\n   first \tsecond"},
+                {"first", "\t   \nfirst\n\tsecond"},
+                {"\nfirst\n", "\t   \n\rfirst\r\n\tsecond"},
+        };
+    }
+
+    static Object[][] prefixAndNotMatchingSting() {
+        return new Object[][]{
+                {"First", "  \n\r\n\t"},
+                {"First", "One two"},
+                {"first", "fir st two"},
+                {"first", "zero first"},
+                {"first", "zero first second"},
+        };
+    }
+
+    static Object[][] prefixAndObject() {
+        return new Object[][]{
+                {"First", 1},
+                {"First", 1.1},
+                {"First", new Object()},
+        };
+    }
+
+    //  ignoreCaseStringPrefixPredicateOnObject(CharSequence) tests
+
+    @ParameterizedTest
+    @MethodSource("prefixAndMatchingString")
+    void ignoreCaseStringPrefixPredicateOnObject_matched(String prefix, String testingString) {
+        assertTrue(ignoreCaseStringPrefixPredicateOnObject(prefix).test(testingString));
+    }
+
+    @ParameterizedTest
+    @MethodSource("prefixAndNotMatchingSting")
+    void ignoreCaseStringPrefixPredicateOnObject_notMatchedString(String prefix, String testingString) {
+        assertFalse(ignoreCaseStringPrefixPredicateOnObject(prefix).test(testingString));
+    }
+
+    @ParameterizedTest
+    @MethodSource("prefixAndObject")
+    void ignoreCaseStringPrefixPredicateOnObject_object(String prefix, Object testingObject) {
+        assertFalse(ignoreCaseStringPrefixPredicateOnObject(prefix).test(testingObject));
+    }
+
+    @Test
+    void ignoreCaseStringPrefixPredicateOnObject_null() {
+        assertFalse(ignoreCaseStringPrefixPredicateOnObject("any").test(null));
+    }
+
+
+    //  ignoreCaseStringPrefixPredicate(CharSequence) tests
+
+    @ParameterizedTest
+    @MethodSource("prefixAndMatchingString")
+    void ignoreCaseStringPrefixPredicate_matched(String prefix, String testingString) {
+        assertTrue(ignoreCaseStringPrefixPredicate(prefix).test(testingString));
+    }
+
+    @ParameterizedTest
+    @MethodSource("prefixAndNotMatchingSting")
+    void ignoreCaseStringPrefixPredicate_notMatchedString(String prefix, String testingString) {
+        assertFalse(ignoreCaseStringPrefixPredicate(prefix).test(testingString));
+    }
+
+    @Test
+    @SuppressWarnings("DataFlowIssue")
+    void ignoreCaseStringPrefixPredicate_null() {
+        Predicate<String> predicate = ignoreCaseStringPrefixPredicate("any");
+        assertThrows(NullPointerException.class, () -> predicate.test(null));
+    }
+
+    @Test
+    void testEqualsAndHashCode() {
+        EqualsVerifier
+                .forClass(IgnoreCaseStringPrefixPredicate.class)
+                .verify();
+        EqualsVerifier
+                .forClass(PredicateOnObjectWrapper.class)
+                .verify();
+    }
+
+    @Test
+    void testToString() {
+        assertEquals(
+                "StringPrefixPredicate.PredicateOnObjectWrapper(predicate=StringPrefixPredicate.IgnoreCaseStringPrefixPredicate(prefix=First))",
+                ignoreCaseStringPrefixPredicateOnObject("First").toString());
+        assertEquals(
+                "StringPrefixPredicate.IgnoreCaseStringPrefixPredicate(prefix=First)",
+                ignoreCaseStringPrefixPredicate("First").toString());
+    }
+}
\ No newline at end of file
diff --git a/src/test/java/org/spacious_team/table_wrapper/api/TableCellTest.java b/src/test/java/org/spacious_team/table_wrapper/api/TableCellTest.java
index b617924..109cef6 100644
--- a/src/test/java/org/spacious_team/table_wrapper/api/TableCellTest.java
+++ b/src/test/java/org/spacious_team/table_wrapper/api/TableCellTest.java
@@ -27,6 +27,7 @@
 import java.math.BigDecimal;
 import java.time.Instant;
 import java.time.LocalDateTime;
+import java.time.ZoneOffset;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertSame;
@@ -49,6 +50,7 @@ void getValueOrDefaultExceptionally() {
         Object expectedDefault = new Object();
         doThrow(RuntimeException.class).when(cell).getValue();
 
+        @SuppressWarnings("DataFlowIssue")
         @Nullable Object result = cell.getValueOrDefault(expectedDefault);
 
         assertSame(expectedDefault, result);
@@ -203,4 +205,28 @@ void getLocalDateTimeValueOrDefaultExceptionally() {
         assertSame(expectedDefault, result);
         verify(cell).getLocalDateTimeValue();
     }
+
+    @Test
+    void getLocalDateTimeValueOnZoneIdOrDefault() {
+        ZoneOffset expectedZone = ZoneOffset.UTC;
+        LocalDateTime expected = LocalDateTime.now();
+        doReturn(expected).when(cell).getLocalDateTimeValue(any());
+
+        LocalDateTime result = cell.getLocalDateTimeValueOrDefault(expectedZone, LocalDateTime.MIN);
+
+        assertEquals(expected, result);
+        verify(cell).getLocalDateTimeValue(expectedZone);
+    }
+
+    @Test
+    void getZoneIdLocalDateTimeValueOnZoneIdOrDefaultExceptionally() {
+        ZoneOffset expectedZone = ZoneOffset.UTC;
+        LocalDateTime expectedDefault = LocalDateTime.now();
+        doThrow(RuntimeException.class).when(cell).getLocalDateTimeValue(any());
+
+        LocalDateTime result = cell.getLocalDateTimeValueOrDefault(expectedZone, expectedDefault);
+
+        assertSame(expectedDefault, result);
+        verify(cell).getLocalDateTimeValue(expectedZone);
+    }
 }
\ No newline at end of file
diff --git a/src/test/java/org/spacious_team/table_wrapper/api/TableRowTest.java b/src/test/java/org/spacious_team/table_wrapper/api/TableRowTest.java
index 292d20a..29e9172 100644
--- a/src/test/java/org/spacious_team/table_wrapper/api/TableRowTest.java
+++ b/src/test/java/org/spacious_team/table_wrapper/api/TableRowTest.java
@@ -27,6 +27,7 @@
 import java.math.BigDecimal;
 import java.time.Instant;
 import java.time.LocalDateTime;
+import java.time.ZoneOffset;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertSame;
@@ -124,28 +125,42 @@ void getStringCellValueOrDefaultThrowable() {
     @Test
     void getInstantCellValueOrDefault() {
         Instant expectedInstant = Instant.now();
-        when(row.getInstantCellValue(any())).thenThrow(RuntimeException.class);
-        assertSame(expectedInstant, row.getInstantCellValueOrDefault(column, expectedInstant));
+        when(row.getInstantCellValue(any())).thenReturn(expectedInstant);
+        assertSame(expectedInstant, row.getInstantCellValueOrDefault(column, Instant.MIN));
     }
 
     @Test
     void getInstantCellValueOrDefaultThrowable() {
         Instant expectedInstant = Instant.now();
-        when(row.getInstantCellValue(any())).thenReturn(expectedInstant);
-        assertSame(expectedInstant, row.getInstantCellValueOrDefault(column, Instant.MIN));
+        when(row.getInstantCellValue(any())).thenThrow(RuntimeException.class);
+        assertSame(expectedInstant, row.getInstantCellValueOrDefault(column, expectedInstant));
     }
 
     @Test
     void getLocalDateTimeCellValueOrDefault() {
+        LocalDateTime expectedLocalDateTime = LocalDateTime.now();
+        when(row.getLocalDateTimeCellValue(any())).thenReturn(expectedLocalDateTime);
+        assertSame(expectedLocalDateTime, row.getLocalDateTimeCellValueOrDefault(column, LocalDateTime.MIN));
+    }
+
+    @Test
+    void getLocalDateTimeCellValueOrDefaultThrowable() {
         LocalDateTime expectedLocalDateTime = LocalDateTime.now();
         when(row.getLocalDateTimeCellValue(any())).thenThrow(RuntimeException.class);
         assertSame(expectedLocalDateTime, row.getLocalDateTimeCellValueOrDefault(column, expectedLocalDateTime));
     }
 
     @Test
-    void getLocalDateTimeCellValueOrDefaultThrowable() {
+    void getLocalDateTimeCellValueOnZoneIdOrDefault() {
         LocalDateTime expectedLocalDateTime = LocalDateTime.now();
-        when(row.getLocalDateTimeCellValue(any())).thenReturn(expectedLocalDateTime);
-        assertSame(expectedLocalDateTime, row.getLocalDateTimeCellValueOrDefault(column, LocalDateTime.MIN));
+        when(row.getLocalDateTimeCellValue(any(), any())).thenReturn(expectedLocalDateTime);
+        assertSame(expectedLocalDateTime, row.getLocalDateTimeCellValueOrDefault(column, ZoneOffset.UTC, LocalDateTime.MIN));
+    }
+
+    @Test
+    void getLocalDateTimeCellValueOnZoneIdOrDefaultThrowable() {
+        LocalDateTime expectedLocalDateTime = LocalDateTime.now();
+        when(row.getLocalDateTimeCellValue(any(), any())).thenThrow(RuntimeException.class);
+        assertSame(expectedLocalDateTime, row.getLocalDateTimeCellValueOrDefault(column, ZoneOffset.UTC, expectedLocalDateTime));
     }
 }
\ No newline at end of file