diff --git a/src/main/java/com/esp/espflow/mappers/ExtractChipIsFromStringMapper.java b/src/main/java/com/esp/espflow/mappers/ExtractChipIsFromStringMapper.java
index 4a71680..13b5d4e 100644
--- a/src/main/java/com/esp/espflow/mappers/ExtractChipIsFromStringMapper.java
+++ b/src/main/java/com/esp/espflow/mappers/ExtractChipIsFromStringMapper.java
@@ -20,14 +20,16 @@ private ExtractChipIsFromStringMapper() {}
      * @return A {@link String}
      */
     public String getChipIsFromThisString(String input) {
-        String chipRegex = "(?s)Chip is (\\S+).*?Features:";
-        Pattern pattern = Pattern.compile(chipRegex);
-        Matcher matcher = pattern.matcher(input);
+        final String notNullInput = Objects.isNull(input) ? StringUtils.EMPTY : input;
+        final String chipRegex = "(?s)Chip is (\\S+).*?Features:";
+        final Pattern pattern = Pattern.compile(chipRegex);
+        final Matcher matcher = pattern.matcher(notNullInput);
         String chipIs = StringUtils.EMPTY;
         if (matcher.find()) {
             chipIs = matcher.group(1);
         }
-        return Objects.equals(chipIs, StringUtils.EMPTY) ? "Can`t parsed this Chip" :
-                chipIs.split("Features:")[0];
+        return Objects.equals(chipIs, StringUtils.EMPTY)
+                ? "Can`t parsed this Chip"
+                : chipIs.split("Features:")[0];
     }
 }
diff --git a/src/test/java/com/esp/espflow/mappers/ExtractChipIsFromStringMapperTest.java b/src/test/java/com/esp/espflow/mappers/ExtractChipIsFromStringMapperTest.java
new file mode 100644
index 0000000..25ef953
--- /dev/null
+++ b/src/test/java/com/esp/espflow/mappers/ExtractChipIsFromStringMapperTest.java
@@ -0,0 +1,49 @@
+package com.esp.espflow.mappers;
+
+import com.esp.espflow.mappers.provider.ExtractChipIsFromStringMapperFailureProvider;
+import com.esp.espflow.mappers.provider.ExtractChipIsFromStringMapperSuccessProvider;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ArgumentsSource;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DisplayName("When extracting the 'Chip is ESP82XX' from the text processed in the Xterm, we check for possible " +
+        "errors and then send the event correctly in the notification panel.")
+class ExtractChipIsFromStringMapperTest {
+
+    @ParameterizedTest
+    @ArgumentsSource(ExtractChipIsFromStringMapperSuccessProvider.class)
+    @DisplayName("The chip is obtained from the input String")
+    void getChipIsFromThisString_Success(String inputLines) {
+
+        final String chipIs = ExtractChipIsFromStringMapper.INSTANCE.getChipIsFromThisString(inputLines);
+
+        assertThat(chipIs).isEqualTo("ESP8266EX");
+
+    }
+
+    @ParameterizedTest
+    @ArgumentsSource(ExtractChipIsFromStringMapperFailureProvider.class)
+    @DisplayName("When the Chip cannot be parsed, cannot be matched because of lowercase f")
+    void attemptToParseTheChip_Failure(final String inputLine) {
+
+        final String chipIs = ExtractChipIsFromStringMapper.INSTANCE.getChipIsFromThisString(inputLine);
+
+        assertThat(chipIs).isEqualTo("Can`t parsed this Chip");
+
+    }
+
+    @Test
+    @DisplayName("Input String is null, something happens when the text arrives at the Xterm and its text is null")
+    void attemptToParseTheChip_Failure2() {
+
+        final String chipIs = ExtractChipIsFromStringMapper.INSTANCE.getChipIsFromThisString(null);
+
+        assertThat(chipIs).isEqualTo("Can`t parsed this Chip");
+
+    }
+
+
+}
\ No newline at end of file
diff --git a/src/test/java/com/esp/espflow/mappers/provider/ExtractChipIsFromStringMapperFailureProvider.java b/src/test/java/com/esp/espflow/mappers/provider/ExtractChipIsFromStringMapperFailureProvider.java
new file mode 100644
index 0000000..f11a19f
--- /dev/null
+++ b/src/test/java/com/esp/espflow/mappers/provider/ExtractChipIsFromStringMapperFailureProvider.java
@@ -0,0 +1,36 @@
+package com.esp.espflow.mappers.provider;
+
+import org.junit.jupiter.api.extension.ExtensionContext;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.ArgumentsProvider;
+
+import java.util.stream.Stream;
+
+public class ExtractChipIsFromStringMapperFailureProvider implements ArgumentsProvider {
+
+    @Override
+    public Stream<? extends Arguments> provideArguments(ExtensionContext extensionContext) throws Exception {
+
+        String parseMePlease = "esptool.py --port COM5 --baud 115200 " +
+                "flash_id esptool.py v4.7.0 " +
+                "Serial port COM5 " +
+                "Connecting.... " +
+                "Detecting chip type... " +
+                "Unsupported detection protocol, switching and trying again... " +
+                "Connecting.... " +
+                "Detecting chip type... ESP8266 " +
+                "Chip is ESP8266EX " +
+                "features: WiFi " +
+                "Crystal is 26MHz " +
+                "MAC: 2c:f4:32:10:1d:bf " +
+                "Uploading stub... " +
+                "Running stub... " +
+                "Stub running... " +
+                "Manufacturer: 85 " +
+                "Device: 6014 " +
+                "Detected flash size: 1MB " +
+                "Hard resetting via RTS pin...";
+
+        return Stream.of(Arguments.of(parseMePlease));
+    }
+}
diff --git a/src/test/java/com/esp/espflow/mappers/provider/ExtractChipIsFromStringMapperSuccessProvider.java b/src/test/java/com/esp/espflow/mappers/provider/ExtractChipIsFromStringMapperSuccessProvider.java
new file mode 100644
index 0000000..97b2288
--- /dev/null
+++ b/src/test/java/com/esp/espflow/mappers/provider/ExtractChipIsFromStringMapperSuccessProvider.java
@@ -0,0 +1,35 @@
+package com.esp.espflow.mappers.provider;
+
+import org.junit.jupiter.api.extension.ExtensionContext;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.ArgumentsProvider;
+
+import java.util.stream.Stream;
+
+public class ExtractChipIsFromStringMapperSuccessProvider implements ArgumentsProvider {
+
+    @Override
+    public Stream<? extends Arguments> provideArguments(ExtensionContext extensionContext) throws Exception {
+
+        String parseMePlease = "esptool.py --port COM5 --baud 115200 " +
+                "flash_id esptool.py v4.7.0 " +
+                "Serial port COM5 " +
+                "Connecting.... " +
+                "Detecting chip type... " +
+                "Unsupported detection protocol, switching and trying again... " +
+                "Connecting.... " +
+                "Detecting chip type... ESP8266 " +
+                "Chip is ESP8266EX " +
+                "Features: WiFi " +
+                "Crystal is 26MHz " +
+                "MAC: 2c:f4:32:10:1d:bf " +
+                "Uploading stub... " +
+                "Running stub... " +
+                "Stub running... " +
+                "Manufacturer: 85 " +
+                "Device: 6014 " +
+                "Detected flash size: 1MB " +
+                "Hard resetting via RTS pin...";
+        return Stream.of(Arguments.of(parseMePlease));
+    }
+}