Added 2 new operations 'NTPTimestampToUNIXTimestamp' and 'UNIXTimestampToNTPTimestamp' allowing to convert NTP timestamp to UNIX timestamp and the other way round

src/core/config/Categories.json

@@ -332,6 +332,8 @@
             "To UNIX Timestamp",
             "Windows Filetime to UNIX Timestamp",
             "UNIX Timestamp to Windows Filetime",
+            "NTP Timestamp to Unix Timestamp",
+            "UNIX Timestamp to NTP Timestamp",
             "DateTime Delta",
             "Extract dates",
             "Get Time",

src/core/operations/NTPTimestampToUNIXTimestamp.mjs

@@ -0,0 +1,139 @@
+/**
+ * @author kossithedon [kossivijunior@yahoo.fr]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import BigNumber from "bignumber.js";
+import OperationError from "../errors/OperationError.mjs";
+import RemoveWhitespace from "./RemoveWhitespace.mjs";
+import SwapEndianness from "./SwapEndianness.mjs"; 
+
+/**
+ * NTP Timestamp to UNIX Timestamp operation
+ */
+class NTPTimestampToUNIXTimestamp extends Operation {
+
+    /**
+     * NTPTimestampToUNIXTimestamp constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "NTP Timestamp to UNIX Timestamp";
+        this.module = "Default";
+        this.description = "Convert an NTP timestamp to the corresponding UNIX timestamp.<br><br>An NTP timestamp is a 64-bit value representing time in the Network Time Protocol (NTP).<br><br>The NTP timestamp is in a fixed-point decimal format where the integer part represents the number of seconds since a fixed reference point, and the fractional part represents fractions of a second.<br><br>The reference point is the epoch of NTP, which is January 1, 1900, at 00:00:00";
+        this.infoURL = "https://en.wikipedia.org/wiki/Network_Time_Protocol";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Input: NTP timestamp format",
+                "type": "option",
+                "value": ["Fixed-point decimal", "Hex (big-endian)", "Hex (little-endian)"]
+            },
+            {
+                "name": "Output : Unix timestamp unit",
+                "type": "option",
+                "value": ["Seconds (s)", "Milliseconds (ms)", "Microseconds (μs)", "Nanoseconds (ns)"] 
+            }
+            
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const [format, unit] = args;
+
+        if (!input || input.trim().length === 0) {
+            return "";
+        } else {
+            input = new RemoveWhitespace().run(input, [true, true, true, true, true, false]);
+        }
+
+        if (format.startsWith("Hex")) {
+            if (input.length != 16) {
+                return `Error: NTP Timestamp should be 64 bits long`; 
+            }
+
+            if (format === "Hex (little-endian)") {
+                // Convert little-endian to big-endian
+                input = new SwapEndianness().run(input, ["Raw", input.length, false]);
+            }
+
+            // Getting the 32 bits (8 first hexa values) long seconds part 
+            const hex_ntp_timestamp_seconds_part = input.substring(0, 8);
+            // Getting the 32 bits (8 last hexa values) long seconds fractions part
+            const hex_ntp_timestamp_fractions_part = input.substring(input.length - 8, input.length);
+
+            // Convert hexadecimal values to decimal values
+            var ntp_timestamp_seconds_part = new BigNumber(hex_ntp_timestamp_seconds_part, 16);
+            var ntp_timestamp_fractions_part = new BigNumber(hex_ntp_timestamp_fractions_part, 16);
+
+        } else if (format == "Fixed-point decimal") {
+
+            // Get the seconds and the seconds fractions parts of the timestamp separated by a "."
+            const pf_ntp_timestamp_seconds_and_fractions_parts = String(input).split(".");
+            var ntp_timestamp_seconds_part = new Number(pf_ntp_timestamp_seconds_and_fractions_parts[0]);
+            var ntp_timestamp_fractions_part = pf_ntp_timestamp_seconds_and_fractions_parts[1]; 
+
+            if (ntp_timestamp_fractions_part == null) {
+                ntp_timestamp_fractions_part = 0
+            } else {
+                ntp_timestamp_fractions_part = new Number(pf_ntp_timestamp_seconds_and_fractions_parts[1]);
+            }
+
+        } else {
+            throw new OperationError("Unrecognised format");
+        }
+
+        // Set the maximum unsigned positive integer representable in 32 bits
+        const max_uint32=new Number(Math.pow(2, 32))
+
+        // Check whether the seconds and the seconds fractions parts values do
+        // not exceeds the maximum positive integer representable in 32 bits
+        if (ntp_timestamp_seconds_part > max_uint32)
+            {
+            return `Error: Timestamp seconds part should be 32 bits long. The seconds part '${ntp_timestamp_seconds_part}' of the provided NTP timestamp exceeds the maximum positive integer representable in 32 bits '${max_uint32}'`;
+            }
+            
+        if (ntp_timestamp_fractions_part > max_uint32)
+            {
+                return `Error: Timestamp fractions seconds part should be 32 bits long. The fractions seconds part '${ntp_timestamp_fractions_part}' of the provided NTP timestamp exceeds the maximum positive integer representable in 32 bits '${max_uint32}'`;
+            }
+
+        // Convert the NTP timestamp seconds part value (seconds elapsed since 01 january 
+        // 1900 midnight) to UNIX timestamp (seconds elapsed since 01 january 1970 midnight)
+        const unix_timestamp_seconds_part = ntp_timestamp_seconds_part - new Number("2208988800");
+        // Convert the NTP timestamp seconds fractions part value to seconds
+        const unix_timestamp_fractions_part = ntp_timestamp_fractions_part / new Number(Math.pow(2, 32));
+        
+        // Addition the seconds part value to the seconds fractions part value
+        // to form the UNIX timestamp in seconds
+        let unix_timestamp=unix_timestamp_seconds_part + unix_timestamp_fractions_part;
+        
+        // Convert seconds Unix timestamp to requested result unit
+        if (unit === "Seconds (s)") {
+            return String(unix_timestamp);
+        } else if (unit === "Milliseconds (ms)") {
+            unix_timestamp = unix_timestamp * new Number("1000");
+        } else if (unit === "Microseconds (μs)") {
+            unix_timestamp = unix_timestamp * new Number(Math.pow(10, 6));
+        } else if (unit === "Nanoseconds (ns)") {
+            unix_timestamp = unix_timestamp * new Number(Math.pow(10, 9));
+        } else {
+            throw new OperationError("Unrecognised unit");
+        }
+
+        return String(unix_timestamp);
+
+    }
+
+}
+
+export default NTPTimestampToUNIXTimestamp;

src/core/operations/UNIXTimestampToNTPTimestamp.mjs

@@ -0,0 +1,131 @@
+/**
+ * @author kossithedon [kossivijunior@yahoo.fr]
+ * @copyright Crown Copyright 2024
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import RemoveWhitespace from "./RemoveWhitespace.mjs";
+import SwapEndianness from "./SwapEndianness.mjs"; 
+import OperationError from "../errors/OperationError.mjs";
+
+/**
+ * UNIX Timestamp to NTP Timestamp operation
+ */
+class NTPTimestampToUNIXTimestamp extends Operation {
+
+    /**
+     * UNIXTimestampToNTPTimestamp constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "UNIX Timestamp to NTP Timestamp";
+        this.module = "Default";
+        this.description = "Convert an NTP timestamp to the corresponding UNIX timestamp.<br><br>An NTP timestamp is a 64-bit value representing time in the Network Time Protocol (NTP).<br><br>The NTP timestamp is in a fixed-point decimal format where the integer part represents the number of seconds since a fixed reference point, and the fractional part represents fractions of a second.<br><br>The reference point is the epoch of NTP, which is January 1, 1900, at 00:00:00";
+        this.infoURL = "https://en.wikipedia.org/wiki/Network_Time_Protocol";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Input : Unix timestamp unit",
+                "type": "option",
+                "value": ["Seconds (s)", "Milliseconds (ms)", "Microseconds (μs)", "Nanoseconds (ns)"] 
+            },
+            {
+                "name": "Output: NTP timestamp format",
+                "type": "option",
+                "value": ["Fixed-point decimal", "Hex (big-endian)", "Hex (little-endian)"]
+            }
+            
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const [unit, format] = args;
+
+        if (!input || input.trim().length === 0) {
+            return "";
+        } else {
+            input = new RemoveWhitespace().run(input, [true, true, true, true, true, false]);
+        }
+
+        let unix_timestamp_seconds;
+
+        // Convert the provided Unix timestmap to seconds Unix timestamps
+        if (unit === "Seconds (s)") {
+            unix_timestamp_seconds = input;
+        } else if (unit === "Milliseconds (ms)") {
+            unix_timestamp_seconds = input / new Number("1000");
+        } else if (unit === "Microseconds (μs)") {
+            unix_timestamp_seconds = input / new Number(Math.pow(10, 6));
+        } else if (unit === "Nanoseconds (ns)") {
+            unix_timestamp_seconds = input / new Number(Math.pow(10, 9));
+        } else {
+            throw new OperationError("Unrecognised unit");
+        }
+
+        // Get the seconds and the fractions seconds parts of the UNIX timestamp
+        const unix_timestamp_seconds_part = Math.floor(unix_timestamp_seconds);
+        const unix_timestamp_fractions_part = unix_timestamp_seconds % 1;
+
+        // The greatest seconds value is the maximum unsigned positive integer representable
+        // in 32 bits (2**32) - 2208988800 (seconds elapsed from NTP Epoch and UNIX Epoch)
+        const greatest_seconds_value = Math.pow(2, 32) - 2208988800
+
+        // Check whether the seconds value part do not exceeds the greatest seconds value
+        if (unix_timestamp_seconds_part > greatest_seconds_value)
+            {
+            return `Error: The NTP Timestamp seconds part '${unix_timestamp_seconds_part}' exceeds the greatest authorized seconds value ${greatest_seconds_value} due to an incorrect provided UNIX timestamp`;
+            }
+
+        // Convert the UNIX timestamp seconds part value (seconds elapsed since 01 january
+        // 1970 midnight) to NTP timestamp (seconds elapsed since 01 january 1900 midnight)
+        var ntp_timestamp_seconds_part = unix_timestamp_seconds_part + new Number("2208988800");
+        // Convert the NTP timestamp seconds fractions part value to seconds
+        var ntp_timestamp_fractions_part = unix_timestamp_fractions_part * (Math.pow(2, 32));
+
+        if (format.startsWith("Hex")) {
+
+            // Convert Unix timestamp seconds and seconds fractions parts from decimal to hexadecimal 
+            const hex_ntp_timestamp_seconds_part = ntp_timestamp_seconds_part.toString(16);
+            var hex_ntp_timestamp_fractions_part = ntp_timestamp_fractions_part.toString(16);
+
+            if (hex_ntp_timestamp_fractions_part == 0) {
+                // pad hexadecimal seconds fractions part
+                hex_ntp_timestamp_fractions_part = "00000000"
+            }
+
+            // Concatenate seconds part hexadecimal value to seconds fractions part 
+            // hexadecimal value to form the big-endian hexadecimal Unix timestamp
+            const be_hex_ntp_timestamp = hex_ntp_timestamp_seconds_part + hex_ntp_timestamp_fractions_part;
+
+            if (format === "Hex (little-endian)") {
+                // Convert big-endian to little-endian
+                const le_hex_ntp_timestamp = new SwapEndianness().run(be_hex_ntp_timestamp, ["Raw", 16, false]);
+                return le_hex_ntp_timestamp;
+            } else if (format === "Hex (big-endian)") {
+                return be_hex_ntp_timestamp;
+            } else {
+                throw new OperationError("Unrecognised format");
+            }
+
+        } else if (format === "Fixed-point decimal")  {
+            // Construct the NTP timestamp by concatenating the seconds part  
+            // value to the seconds fractions part value separeted by a "."
+            const pf_ntp_timestamp=ntp_timestamp_seconds_part+'.'+ntp_timestamp_fractions_part;
+            return pf_ntp_timestamp;
+
+        } else {
+            throw new OperationError("Unrecognised format"); 
+        }
+    }
+
+}
+
+export default NTPTimestampToUNIXTimestamp;

tests/operations/tests/NTPTimestampToUNIXTimestamp.mjs

@@ -0,0 +1,211 @@
+/**
+ * Set NTP timestamp to UNIX timestamp tests.
+ *
+ * @author kossithedon
+ *
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "Fixed-point decimal NTP Timestamp to Seconds UNIX Timestamp",
+        input: "3923215437.1842400034",
+        expectedOutput: "1714226637.4289672",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Fixed-point decimal", "Seconds (s)"],
+            },
+        ],
+    },
+    {
+        name: "Fixed-point decimal NTP Timestamp to Milliseconds UNIX Timestamp",
+        input: "3923215437.1842400034",
+        expectedOutput: "1714226637428.9673",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Fixed-point decimal", "Milliseconds (ms)"],
+            },
+        ],
+    },
+    {
+        name: "Fixed-point decimal NTP Timestamp to Microseconds UNIX Timestamp",
+        input: "3923215437.1842400034",
+        expectedOutput: "1714226637428967.2",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Fixed-point decimal", "Microseconds (μs)"],
+            },
+        ],
+    },
+    {
+        name: "Fixed-point decimal NTP Timestamp to Nanoseconds UNIX Timestamp",
+        input: "3923215437.1842400034",
+        expectedOutput: "1714226637428967200",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Fixed-point decimal", "Nanoseconds (ns)"],
+            },
+        ],
+    },
+    {
+        name: "Big-endian hexadecimal NTP Timestamp to Seconds UNIX Timestamp",
+        input: "e9d784613df8dd8b",
+        expectedOutput: "1714226657.2420785",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (big-endian)", "Seconds (s)"],
+            },
+        ],
+    },
+    {
+        name: "Big-endian hexadecimal NTP Timestamp to Milliseconds UNIX Timestamp",
+        input: "e9d784613df8dd8b",
+        expectedOutput: "1714226657242.0786",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (big-endian)", "Milliseconds (ms)"],
+            },
+        ],
+    },
+    {
+        name: "Big-endian hexadecimal NTP Timestamp to Microseconds UNIX Timestamp",
+        input: "e9d784613df8dd8b",
+        expectedOutput: "1714226657242078.5",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (big-endian)", "Microseconds (μs)"],
+            },
+        ],
+    },
+    {
+        name: "Big-endian hexadecimal NTP Timestamp to Nanoseconds UNIX Timestamp",
+        input: "e9d784613df8dd8b",
+        expectedOutput: "1714226657242078500",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (big-endian)", "Nanoseconds (ns)"],
+            },
+        ],
+    },
+    {
+        name: "Little-endian hexadecimal NTP Timestamp to Seconds UNIX Timestamp",
+        input: "b8dd8fd316487d9e",
+        expectedOutput: "1714226657.2420785",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (little-endian)", "Seconds (s)"],
+            },
+        ],
+    },
+    {
+        name: "Little-endian hexadecimal NTP Timestamp to Milliseconds UNIX Timestamp",
+        input: "b8dd8fd316487d9e",
+        expectedOutput: "1714226657242.0786",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (little-endian)", "Milliseconds (ms)"],
+            },
+        ],
+    },
+    {
+        name: "Little-endian hexadecimal NTP Timestamp to Microseconds UNIX Timestamp",
+        input: "b8dd8fd316487d9e",
+        expectedOutput: "1714226657242078.5",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (little-endian)", "Microseconds (μs)"],
+            },
+        ],
+    },
+    {
+        name: "Little-endian hexadecimal NTP Timestamp to Nanoseconds UNIX Timestamp",
+        input: "b8dd8fd316487d9e",
+        expectedOutput: "1714226657242078500",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (little-endian)", "Nanoseconds (ns)"],
+            },
+        ],
+    },
+    {
+        name: "Hexadecimal NTP Timestamp to UNIX Timestamp : too long hexadecimal NTP timestamp input",
+        input: "e9d784613df8dd8bf",
+        expectedOutput: "Error: NTP Timestamp should be 64 bits long",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (big-endian)", "Seconds (s)"],
+            },
+        ],
+    },
+    {
+        name: "Hexadecimal NTP Timestamp to UNIX Timestamp : too short hexadecimal NTP timestamp input",
+        input: "b8dd8fd316487d9",
+        expectedOutput: "Error: NTP Timestamp should be 64 bits long",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Hex (little-endian)", "Seconds (s)"],
+            },
+        ],
+    },
+    {
+        name: "NTP Timestamp to UNIX Timestamp : NTP Timestamp input unrecognised format",
+        input: "60954b2d-7151-45c7-99cc-aca4ab664a8e",
+        expectedOutput: "Unrecognised format",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["uuid", "Seconds (s)"],
+            },
+        ],
+    },
+    {
+        name: "NTP Timestamp to UNIX Timestamp : UNIX Timestamp output unrecognised unit",
+        input: "3923215437.1842400034",
+        expectedOutput: "Unrecognised unit",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Fixed-point decimal", "Hours"],
+            },
+        ],
+    },
+    {
+        name: "NTP Timestamp to UNIX Timestamp : NTP timestamp seconds part is greater than the greatest 32 bits value 4294967296",
+        input: "4294967297.1842400034",
+        expectedOutput: "Error: Timestamp seconds part should be 32 bits long. The seconds part '4294967297' of the provided NTP timestamp is greater than the greatest 32 bits value '4294967296'",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Fixed-point decimal", "Seconds (s)"],
+            },
+        ],
+    },
+    {
+        name: "NTP Timestamp to UNIX Timestamp : NTP timestamp seconds fractions part is greater than the greatest 32 bits value 4294967296",
+        input: "3923215437.4294967297",
+        expectedOutput: "Error: Timestamp fractions seconds part should be 32 bits long. The fractions seconds part '4294967297' of the provided NTP timestamp is greater than the greatest 32 bits value '4294967296'",
+        recipeConfig: [
+            {
+                op: "NTP Timestamp to UNIX Timestamp",
+                args: ["Fixed-point decimal", "Seconds (s)"],
+            },
+        ],
+    }
+
+]);

tests/operations/tests/UNIXTimestampToNTPTimestamp.mjs

@@ -0,0 +1,178 @@
+/**
+ * Set UNIX Timestamp to NTP Timestamp tests.
+ *
+ * @author kossithedon
+ *
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "Seconds UNIX Timestamp to Fixed-point decimal NTP Timestamp",
+        input: "1714226657.2420785",
+        expectedOutput: "3923215457.1039719424",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Seconds (s)", "Fixed-point decimal"],
+            },
+        ],
+    },
+    {
+        name: "Milliseconds UNIX Timestamp to Fixed-point decimal NTP Timestamp ",
+        input: "1714226657242.0786",
+        expectedOutput: "3923215457.1039719424",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Milliseconds (ms)", "Fixed-point decimal"],
+            },
+        ],
+    },
+    {
+        name: "Microseconds UNIX Timestamp to Fixed-point decimal NTP Timestamp ",
+        input: "1714226657242078.5",
+        expectedOutput: "3923215457.1039719424",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Microseconds (μs)", "Fixed-point decimal"],
+            },
+        ],
+    },
+    {
+        name: "Nanoseconds UNIX Timestamp to Fixed-point decimal NTP Timestamp",
+        input: "1714226657242078500",
+        expectedOutput: "3923215457.1039719424",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Nanoseconds (ns)", "Fixed-point decimal"],
+            },
+        ],
+    },
+    {
+        name: "Seconds UNIX Timestamp to Big-endian hexadecimal NTP Timestamp",
+        input: "1714226657.2420785",
+        expectedOutput: "e9d784613df8dc00",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Seconds (s)", "Hex (big-endian)"],
+            },
+        ],
+    },
+    {
+        name: "Milliseconds UNIX Timestamp to Big-endian hexadecimal NTP Timestamp",
+        input: "1714226657242.0786",
+        expectedOutput: "e9d784613df8dc00",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Milliseconds (ms)", "Hex (big-endian)"],
+            },
+        ],
+    },
+    {
+        name: "Microseconds UNIX Timestamp to Big-endian hexadecimal NTP Timestamp",
+        input: "1714226657242078.5",
+        expectedOutput: "e9d784613df8dc00",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Microseconds (μs)", "Hex (big-endian)"],
+            },
+        ],
+    },
+    {
+        name: "Nanoseconds UNIX Timestamp to Big-endian hexadecimal NTP Timestamp",
+        input: "1714226657242078500",
+        expectedOutput: "e9d784613df8dc00",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Nanoseconds (ns)", "Hex (big-endian)"],
+            },
+        ],
+    },
+    {
+        name: "Seconds UNIX Timestamp to Little-endian hexadecimal NTP Timestamp",
+        input: "1714226657.2420785",
+        expectedOutput: "00cd8fd316487d9e",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Seconds (s)", "Hex (little-endian)"],
+            },
+        ],
+    },
+    {
+        name: "Milliseconds UNIX Timestamp to Little-endian hexadecimal NTP Timestamp",
+        input: "1714226657242.0786",
+        expectedOutput: "00cd8fd316487d9e",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Milliseconds (ms)", "Hex (little-endian)"],
+            },
+        ],
+    },
+    {
+        name: "Microseconds UNIX Timestamp to Little-endian hexadecimal NTP Timestamp",
+        input: "1714226657242078.5",
+        expectedOutput: "00cd8fd316487d9e",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Microseconds (μs)", "Hex (little-endian)"],
+            },
+        ],
+    },
+    {
+        name: "Nanoseconds UNIX Timestamp to Little-endian hexadecimal NTP Timestamp",
+        input: "1714226657242078500",
+        expectedOutput: "00cd8fd316487d9e",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Nanoseconds (ns)", "Hex (little-endian)"],
+            },
+        ],
+    },
+    {
+        name: "UNIX Timestamp to NTP Timestamp : UNIX Timestamp input unrecognised format",
+        input: "60954b2d-7151-45c7-99cc-aca4ab664a8e",
+        expectedOutput: "Unrecognised unit",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["uuid", "Fixed-point decimal"],
+            },
+        ],
+    },
+    {
+        name: "UNIX Timestamp to NTP Timestamp : UNIX Timestamp output unrecognised format",
+        input: "1714226657.2420785",
+        expectedOutput: "Unrecognised format",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Seconds (s)", "Floating-point", ],
+            },
+        ],
+    },
+    {
+        name: "UNIX Timestamp to NTP Timestamp : NTP timestamp seconds part is greater than the greatest authorized value 2085978496",
+        input: "2085978497",
+        expectedOutput: "Error: The UNIX Timestamp seconds part '2085978497' exceeds the greatest authorized seconds value '2085978496' due to an incorrect provided UNIX timestamp",
+        recipeConfig: [
+            {
+                op: "UNIX Timestamp to NTP Timestamp",
+                args: ["Seconds (s)", "Fixed-point decimal"],
+            },
+        ],
+    }
+
+]);