4.1.0 (#70)

.github/workflows/nodejs.yml

@@ -4,7 +4,7 @@
 name: Node.js CI
 
 env:
-  XAHAUD_VERSION: 2026.6.16-dev+3330
+  XAHAUD_VERSION: 2026.6.21-release+3350
 
 on:
   push:

package-lock.json

@@ -16048,7 +16048,7 @@
       }
     },
     "packages/xahau": {
-      "version": "4.0.4",
+      "version": "4.1.0",
       "license": "ISC",
       "dependencies": {
         "@scure/bip32": "^1.3.1",
@@ -16058,7 +16058,7 @@
         "bignumber.js": "^9.0.0",
         "eventemitter3": "^5.0.1",
         "xahau-address-codec": "^5.0.0",
-        "xahau-binary-codec": "^2.1.3",
+        "xahau-binary-codec": "^2.2.0",
         "xahau-keypairs": "^2.0.0"
       },
       "devDependencies": {
@@ -16091,7 +16091,7 @@
       }
     },
     "packages/xahau-binary-codec": {
-      "version": "2.1.3",
+      "version": "2.2.0",
       "license": "ISC",
       "dependencies": {
         "@xrplf/isomorphic": "^1.0.1",

packages/xahau-binary-codec/HISTORY.md

@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-## 2.1.0 (2024-06-03)
+## 2.1.0 (2026-06-23)
 
 ### Added
 * Support for the Price Oracles amendment (XLS-47).

packages/xahau-binary-codec/package.json

@@ -1,6 +1,6 @@
 {
   "name": "xahau-binary-codec",
-  "version": "2.1.3",
+  "version": "2.2.0",
   "description": "Xahau Network binary codec",
   "files": [
     "dist/*",

packages/xahau-binary-codec/test/fixtures/codec-fixtures.json

@@ -4449,6 +4449,36 @@
         "Flags": 0,
         "Sequence": 62
       }
+    },
+    {
+      "binary": "12003C2FFFFFFFFF2033000004D2750B6469645F6578616D706C65701D0863757272656E6379701E0870726F7669646572811401476926B590BA3245F63C829116A0A3AF7F382DF018E020301700000000000001E2041003011A0000000000000000000000000000000000000000021A0000000000000000000000005553440000000000E1F1",
+      "json": {
+        "TransactionType": "OracleSet",
+        "Account": "rfmDuhDyLGgx94qiwf3YF8BUV5j6KSvE8",
+        "OracleDocumentID": 1234,
+        "LastUpdateTime": 4294967295,
+        "PriceDataSeries": [
+          {
+            "PriceData": {
+              "BaseAsset": "XAH",
+              "QuoteAsset": "USD",
+              "AssetPrice": "00000000000001E2",
+              "Scale": 3
+            }
+          }
+        ],
+        "Provider": "70726F7669646572",
+        "URI": "6469645F6578616D706C65",
+        "AssetClass": "63757272656E6379"
+      }
+    },
+    {
+      "binary": "12003D2033000004D2811401476926B590BA3245F63C829116A0A3AF7F382D",
+      "json": {
+        "TransactionType": "OracleDelete",
+        "Account": "rfmDuhDyLGgx94qiwf3YF8BUV5j6KSvE8",
+        "OracleDocumentID": 1234
+      }
     }
   ],
   "ledgerData": [{

packages/xahau/HISTORY.md

@@ -1,14 +1,15 @@
-# xrpl.js Release History
+# xahau.js Release History
-
-Subscribe to [the **xrpl-announce** mailing list](https://groups.google.com/g/xrpl-announce) for release announcements. We recommend that xrpl.js (ripple-lib) users stay up-to-date with the latest stable release.
 
 ## Unreleased Changes
 
+## 4.1.0 (2026-06-23)
+
 ### Added
 * Support for HookOnV2 Amendment
 * Support for IOUClaimReward Amendment
 * Support for NamedHooks
 * Support for the `simulate` RPC ([XLS-69](https://github.com/XRPLF/XRPL-Standards/tree/master/XLS-0069-simulate))
+* Support for the Price Oracles amendment (XLS-47).
 
 ## 4.0.4 (2026-05-27)
 
@@ -67,6 +68,9 @@ Subscribe to [the **xrpl-announce** mailing list](https://groups.google.com/g/xr
 ### Added
 * Support for the Price Oracles amendment (XLS-47).
 
+### Added
+* Support for the Price Oracles amendment (XLS-47).
+
 ### Fixed
 * Typo in `Channel` type `source_tab` -> `source_tag`
 * Fix `client.requestAll` to handle filters better

packages/xahau/package.json

@@ -1,6 +1,6 @@
 {
   "name": "xahau",
-  "version": "4.0.4",
+  "version": "4.1.0",
   "license": "ISC",
   "description": "A TypeScript/JavaScript API for interacting with the Xahau Network in Node.js and the browser",
   "files": [
@@ -29,7 +29,7 @@
     "bignumber.js": "^9.0.0",
     "eventemitter3": "^5.0.1",
     "xahau-address-codec": "^5.0.0",
-    "xahau-binary-codec": "^2.1.3",
+    "xahau-binary-codec": "^2.2.0",
     "xahau-keypairs": "^2.0.0"
   },
   "devDependencies": {

packages/xahau/src/client/index.ts

@@ -660,7 +660,7 @@ class Client extends EventEmitter<EventTypes> {
    * @returns The autofilled transaction.
    * @throws ValidationError If Amount and DeliverMax fields are not identical in a Payment Transaction
    */
-
+  // eslint-disable-next-line complexity -- handling Payment transaction API v2 requires more logic
   public async autofill<T extends SubmittableTransaction>(
     transaction: T,
     signersCount?: number,
@@ -681,6 +681,34 @@ class Client extends EventEmitter<EventTypes> {
       promises.push(setLatestValidatedLedgerSequence(this, tx))
     }
 
+    // eslint-disable-next-line @typescript-eslint/ban-ts-comment -- ignore type-assertions on the DeliverMax property
+    // @ts-expect-error -- DeliverMax property exists only at the RPC level, not at the protocol level
+    if (tx.TransactionType === 'Payment' && tx.DeliverMax != null) {
+      // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition -- This is a valid null check for Amount
+      if (tx.Amount == null) {
+        // If only DeliverMax is provided, use it to populate the Amount field
+        // eslint-disable-next-line @typescript-eslint/ban-ts-comment -- ignore type-assertions on the DeliverMax property
+        // @ts-expect-error -- DeliverMax property exists only at the RPC level, not at the protocol level
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment -- DeliverMax is a known RPC-level property
+        tx.Amount = tx.DeliverMax
+      }
+
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment -- ignore type-assertions on the DeliverMax property
+      // @ts-expect-error -- DeliverMax property exists only at the RPC level, not at the protocol level
+      // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition -- This is a valid null check for Amount
+      if (tx.Amount != null && tx.Amount !== tx.DeliverMax) {
+        return Promise.reject(
+          new ValidationError(
+            'PaymentTransaction: Amount and DeliverMax fields must be identical when both are provided',
+          ),
+        )
+      }
+
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment -- ignore type-assertions on the DeliverMax property
+      // @ts-expect-error -- DeliverMax property exists only at the RPC level, not at the protocol level
+      delete tx.DeliverMax
+    }
+
     await Promise.all(promises).then(() => tx)
 
     if (tx.Fee == null) {

packages/xahau/src/models/ledger/LedgerEntry.ts

@@ -14,6 +14,7 @@ import ImportVLSequence from './ImportVLSequence'
 import LedgerHashes from './LedgerHashes'
 import NegativeUNL from './NegativeUNL'
 import Offer from './Offer'
+import Oracle from './Oracle'
 import PayChannel from './PayChannel'
 import RippleState from './RippleState'
 import SignerList from './SignerList'
@@ -38,6 +39,7 @@ type LedgerEntry =
   | LedgerHashes
   | NegativeUNL
   | Offer
+  | Oracle
   | PayChannel
   | RippleState
   | SignerList
@@ -60,6 +62,7 @@ type LedgerEntryFilter =
   | 'import_vl_sequence'
   | 'hashes'
   | 'offer'
+  | 'oracle'
   | 'payment_channel'
   | 'signer_list'
   | 'state'

packages/xahau/src/models/ledger/Oracle.ts

@@ -0,0 +1,43 @@
+import { PriceData } from '../common'
+
+import { BaseLedgerEntry, HasPreviousTxnID } from './BaseLedgerEntry'
+
+/**
+ * The Oracle object type describes a single Price Oracle instance.
+ *
+ * @category Ledger Entries
+ */
+export default interface Oracle extends BaseLedgerEntry, HasPreviousTxnID {
+  LedgerEntryType: 'Oracle'
+
+  /**
+   * The time the data was last updated, represented as a unix timestamp in seconds.
+   */
+  LastUpdateTime: number
+
+  /**
+   * The XRPL account with update and delete privileges for the oracle.
+   */
+  Owner: string
+
+  /**
+   * Describes the type of asset, such as "currency", "commodity", or "index".
+   */
+  AssetClass: string
+
+  /**
+   * The oracle provider, such as Chainlink, Band, or DIA.
+   */
+  Provider: string
+
+  /**
+   * An array of up to 10 PriceData objects.
+   */
+  PriceDataSeries: PriceData[]
+
+  /**
+   * A bit-map of boolean flags. No flags are defined for the Oracle object
+   * type, so this value is always 0.
+   */
+  Flags: 0
+}

packages/xahau/src/models/ledger/index.ts

@@ -23,6 +23,7 @@ import { LedgerEntry, LedgerEntryFilter } from './LedgerEntry'
 import LedgerHashes from './LedgerHashes'
 import NegativeUNL, { NEGATIVE_UNL_ID } from './NegativeUNL'
 import Offer, { OfferFlags } from './Offer'
+import Oracle from './Oracle'
 import PayChannel from './PayChannel'
 import RippleState, { RippleStateFlags } from './RippleState'
 import SignerList, { SignerListFlags } from './SignerList'
@@ -60,6 +61,7 @@ export {
   NegativeUNL,
   Offer,
   OfferFlags,
+  Oracle,
   PayChannel,
   RippleState,
   RippleStateFlags,

packages/xahau/src/models/methods/getAggregatePrice.ts

@@ -0,0 +1,119 @@
+import { BaseRequest, BaseResponse } from './baseMethod'
+
+/**
+ * The `get_aggregate_price` method retrieves the aggregate price of specified Oracle objects,
+ * returning three price statistics: mean, median, and trimmed mean.
+ * Returns an {@link GetAggregatePriceResponse}.
+ *
+ * @category Requests
+ */
+export interface GetAggregatePriceRequest extends BaseRequest {
+  command: 'get_aggregate_price'
+
+  /**
+   * The currency code of the asset to be priced.
+   */
+  base_asset: string
+
+  /**
+   * The currency code of the asset to quote the price of the base asset.
+   */
+  quote_asset: string
+
+  /**
+   * The oracle identifier.
+   */
+  oracles: Array<{
+    /**
+     * The XRPL account that controls the Oracle object.
+     */
+    account: string
+
+    /**
+     * A unique identifier of the price oracle for the Account
+     */
+    oracle_document_id: string | number
+  }>
+
+  /**
+   * The percentage of outliers to trim. Valid trim range is 1-25. If included, the API returns statistics for the trimmed mean.
+   */
+  trim?: number
+
+  /**
+   * Defines a time range in seconds for filtering out older price data. Default value is 0, which doesn't filter any data.
+   */
+  trim_threshold?: number
+}
+
+/**
+ * Response expected from an {@link GetAggregatePriceRequest}.
+ *
+ * @category Responses
+ */
+export interface GetAggregatePriceResponse extends BaseResponse {
+  result: {
+    /**
+     * The statistics from the collected oracle prices.
+     */
+    entire_set: {
+      /**
+       * The simple mean.
+       */
+      mean: string
+
+      /**
+       * The size of the data set to calculate the mean.
+       */
+      size: number
+
+      /**
+       * The standard deviation.
+       */
+      standard_deviation: string
+    }
+
+    /**
+     * The trimmed statistics from the collected oracle prices. Only appears if the trim field was specified in the request.
+     */
+    trimmed_set?: {
+      /**
+       * The simple mean of the trimmed data.
+       */
+      mean: string
+
+      /**
+       * The size of the data to calculate the trimmed mean.
+       */
+      size: number
+
+      /**
+       * The standard deviation of the trimmed data.
+       */
+      standard_deviation: string
+    }
+
+    /**
+     * The median of the collected oracle prices.
+     */
+    median: string
+
+    /**
+     * The most recent timestamp out of all LastUpdateTime values.
+     */
+    time: number
+
+    /**
+     * The ledger index of the ledger version that was used to generate this
+     * response.
+     */
+    ledger_current_index: number
+
+    /**
+     * If included and set to true, the information in this response comes from
+     * a validated ledger version. Otherwise, the information is subject to
+     * change.
+     */
+    validated: boolean
+  }
+}

packages/xahau/src/models/methods/index.ts

@@ -78,6 +78,10 @@ import {
   GatewayBalancesRequest,
   GatewayBalancesResponse,
 } from './gatewayBalances'
+import {
+  GetAggregatePriceRequest,
+  GetAggregatePriceResponse,
+} from './getAggregatePrice'
 import {
   LedgerBinary,
   LedgerModifiedOfferCreateTransaction,
@@ -221,6 +225,8 @@ type Request =
   // utility methods
   | PingRequest
   | RandomRequest
+  // Price Oracle methods
+  | GetAggregatePriceRequest
 
 /**
  * @category Responses
@@ -269,6 +275,8 @@ type Response<Version extends APIVersion = typeof DEFAULT_API_VERSION> =
   // utility methods
   | PingResponse
   | RandomResponse
+  // Price Oracle methods
+  | GetAggregatePriceResponse
 
 export type RequestResponseMap<
   T,
@@ -289,6 +297,8 @@ export type RequestResponseMap<
   ? AccountTxVersionResponseMap<Version>
   : T extends GatewayBalancesRequest
   ? GatewayBalancesResponse
+  : T extends GetAggregatePriceRequest
+  ? GetAggregatePriceResponse
   : T extends NoRippleCheckRequest
   ? NoRippleCheckResponse
   : // NOTE: The order of these LedgerRequest types is important
@@ -481,6 +491,8 @@ export {
   GatewayBalance,
   GatewayBalancesRequest,
   GatewayBalancesResponse,
+  GetAggregatePriceRequest,
+  GetAggregatePriceResponse,
   NoRippleCheckRequest,
   NoRippleCheckResponse,
   // ledger methods

packages/xahau/src/models/transactions/index.ts

@@ -32,6 +32,8 @@ export {
   OfferCreateFlagsInterface,
   OfferCreate,
 } from './offerCreate'
+export { OracleDelete } from './oracleDelete'
+export { OracleSet } from './oracleSet'
 export { PaymentFlags, PaymentFlagsInterface, Payment } from './payment'
 export {
   PaymentChannelClaimFlags,

packages/xahau/src/models/transactions/oracleDelete.ts

@@ -0,0 +1,32 @@
+import {
+  BaseTransaction,
+  isNumber,
+  validateBaseTransaction,
+  validateRequiredField,
+} from './common'
+
+/**
+ * Delete an Oracle ledger entry.
+ *
+ * @category Transaction Models
+ */
+export interface OracleDelete extends BaseTransaction {
+  TransactionType: 'OracleDelete'
+
+  /**
+   * A unique identifier of the price oracle for the Account.
+   */
+  OracleDocumentID: number
+}
+
+/**
+ * Verify the form and type of a OracleDelete at runtime.
+ *
+ * @param tx - A OracleDelete Transaction.
+ * @throws When the OracleDelete is malformed.
+ */
+export function validateOracleDelete(tx: Record<string, unknown>): void {
+  validateBaseTransaction(tx)
+
+  validateRequiredField(tx, 'OracleDocumentID', isNumber)
+}

packages/xahau/src/models/transactions/oracleSet.ts

@@ -0,0 +1,198 @@
+import { ValidationError } from '../../errors'
+import { PriceData } from '../common'
+import { isHex } from '../utils'
+
+import {
+  BaseTransaction,
+  isNumber,
+  isString,
+  validateBaseTransaction,
+  validateOptionalField,
+  validateRequiredField,
+} from './common'
+
+const PRICE_DATA_SERIES_MAX_LENGTH = 10
+const SCALE_MAX = 10
+const MINIMUM_ASSET_PRICE_LENGTH = 1
+const MAXIMUM_ASSET_PRICE_LENGTH = 16
+
+/**
+ * Creates a new Oracle ledger entry or updates the fields of an existing one, using the Oracle ID.
+ *
+ * The oracle provider must complete these steps before submitting this transaction:
+ * 1. Create or own the XRPL account in the Owner field and have enough XRP to meet the reserve and transaction fee requirements.
+ * 2. Publish the XRPL account public key, so it can be used for verification by dApps.
+ * 3. Publish a registry of available price oracles with their unique OracleDocumentID.
+ *
+ * @category Transaction Models
+ */
+export interface OracleSet extends BaseTransaction {
+  TransactionType: 'OracleSet'
+
+  /**
+   * A unique identifier of the price oracle for the Account.
+   */
+  OracleDocumentID: number
+
+  /**
+   * The time the data was last updated, represented as a unix timestamp in seconds.
+   */
+  LastUpdateTime: number
+
+  /**
+   * An array of up to 10 PriceData objects, each representing the price information
+   * for a token pair. More than five PriceData objects require two owner reserves.
+   */
+  PriceDataSeries: PriceData[]
+
+  /**
+   * An arbitrary value that identifies an oracle provider, such as Chainlink, Band,
+   * or DIA. This field is a string, up to 256 ASCII hex encoded characters (0x20-0x7E).
+   * This field is required when creating a new Oracle ledger entry, but is optional for updates.
+   */
+  Provider?: string
+
+  /**
+   * An optional Universal Resource Identifier to reference price data off-chain. This field is limited to 256 bytes.
+   */
+  URI?: string
+
+  /**
+   * Describes the type of asset, such as "currency", "commodity", or "index". This field is a string, up to 16 ASCII
+   * hex encoded characters (0x20-0x7E). This field is required when creating a new Oracle ledger entry, but is optional
+   * for updates.
+   */
+  AssetClass?: string
+}
+
+/**
+ * Verify the form and type of a OracleSet at runtime.
+ *
+ * @param tx - A OracleSet Transaction.
+ * @throws When the OracleSet is malformed.
+ */
+// eslint-disable-next-line max-lines-per-function -- necessary to validate many fields
+export function validateOracleSet(tx: Record<string, unknown>): void {
+  validateBaseTransaction(tx)
+
+  validateRequiredField(tx, 'OracleDocumentID', isNumber)
+
+  validateRequiredField(tx, 'LastUpdateTime', isNumber)
+
+  validateOptionalField(tx, 'Provider', isString)
+
+  validateOptionalField(tx, 'URI', isString)
+
+  validateOptionalField(tx, 'AssetClass', isString)
+
+  /* eslint-disable max-statements, max-lines-per-function -- necessary to validate many fields */
+  validateRequiredField(tx, 'PriceDataSeries', (value) => {
+    if (!Array.isArray(value)) {
+      throw new ValidationError('OracleSet: PriceDataSeries must be an array')
+    }
+
+    if (value.length > PRICE_DATA_SERIES_MAX_LENGTH) {
+      throw new ValidationError(
+        `OracleSet: PriceDataSeries must have at most ${PRICE_DATA_SERIES_MAX_LENGTH} PriceData objects`,
+      )
+    }
+
+    // TODO: add support for handling inner objects easier (similar to validateRequiredField/validateOptionalField)
+    for (const priceData of value) {
+      if (typeof priceData !== 'object') {
+        throw new ValidationError(
+          'OracleSet: PriceDataSeries must be an array of objects',
+        )
+      }
+
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+      if (priceData.PriceData == null) {
+        throw new ValidationError(
+          'OracleSet: PriceDataSeries must have a `PriceData` object',
+        )
+      }
+
+      // check if priceData only has PriceData
+      if (Object.keys(priceData).length !== 1) {
+        throw new ValidationError(
+          'OracleSet: PriceDataSeries must only have a single PriceData object',
+        )
+      }
+
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+      if (typeof priceData.PriceData.BaseAsset !== 'string') {
+        throw new ValidationError(
+          'OracleSet: PriceDataSeries must have a `BaseAsset` string',
+        )
+      }
+
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+      if (typeof priceData.PriceData.QuoteAsset !== 'string') {
+        throw new ValidationError(
+          'OracleSet: PriceDataSeries must have a `QuoteAsset` string',
+        )
+      }
+
+      // Either AssetPrice and Scale are both present or both excluded
+      if (
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+        (priceData.PriceData.AssetPrice == null) !==
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+        (priceData.PriceData.Scale == null)
+      ) {
+        throw new ValidationError(
+          'OracleSet: PriceDataSeries must have both `AssetPrice` and `Scale` if any are present',
+        )
+      }
+
+      /* eslint-disable @typescript-eslint/no-unsafe-member-access, max-depth --
+      we need to validate priceData.PriceData.AssetPrice value */
+      if ('AssetPrice' in priceData.PriceData) {
+        if (!isNumber(priceData.PriceData.AssetPrice)) {
+          if (typeof priceData.PriceData.AssetPrice !== 'string') {
+            throw new ValidationError(
+              'OracleSet: Field AssetPrice must be a string or a number',
+            )
+          }
+          if (!isHex(priceData.PriceData.AssetPrice)) {
+            throw new ValidationError(
+              'OracleSet: Field AssetPrice must be a valid hex string',
+            )
+          }
+          if (
+            priceData.PriceData.AssetPrice.length <
+              MINIMUM_ASSET_PRICE_LENGTH ||
+            priceData.PriceData.AssetPrice.length > MAXIMUM_ASSET_PRICE_LENGTH
+          ) {
+            throw new ValidationError(
+              `OracleSet: Length of AssetPrice field must be between ${MINIMUM_ASSET_PRICE_LENGTH} and ${MAXIMUM_ASSET_PRICE_LENGTH} characters long`,
+            )
+          }
+        }
+      }
+      /* eslint-enable @typescript-eslint/no-unsafe-member-access, max-depth */
+
+      if (
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+        'Scale' in priceData.PriceData &&
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+        !isNumber(priceData.PriceData.Scale)
+      ) {
+        throw new ValidationError('OracleSet: invalid field Scale')
+      }
+
+      if (
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+        priceData.PriceData.Scale < 0 ||
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- we are validating the type
+        priceData.PriceData.Scale > SCALE_MAX
+      ) {
+        throw new ValidationError(
+          `OracleSet: Scale must be in range 0-${SCALE_MAX}`,
+        )
+      }
+    }
+    return true
+  })
+  /* eslint-enable max-statements, max-lines-per-function */
+}

packages/xahau/src/models/transactions/transaction.ts

@@ -24,6 +24,8 @@ import { Invoke, validateInvoke } from './invoke'
 import { TransactionMetadata } from './metadata'
 import { OfferCancel, validateOfferCancel } from './offerCancel'
 import { OfferCreate, validateOfferCreate } from './offerCreate'
+import { OracleDelete, validateOracleDelete } from './oracleDelete'
+import { OracleSet, validateOracleSet } from './oracleSet'
 import { Payment, validatePayment } from './payment'
 import {
   PaymentChannelClaim,
@@ -79,6 +81,8 @@ export type SubmittableTransaction =
   | Invoke
   | OfferCancel
   | OfferCreate
+  | OracleDelete
+  | OracleSet
   | Payment
   | PaymentChannelClaim
   | PaymentChannelCreate
@@ -249,6 +253,14 @@ export function validate(transaction: Record<string, unknown>): void {
       validateOfferCreate(tx)
       break
 
+    case 'OracleDelete':
+      validateOracleDelete(tx)
+      break
+
+    case 'OracleSet':
+      validateOracleSet(tx)
+      break
+
     case 'Payment':
       validatePayment(tx)
       break
@@ -315,6 +327,7 @@ export function validate(transaction: Record<string, unknown>): void {
 
     default:
       throw new ValidationError(
+        // eslint-disable-next-line max-lines -- allowed here
         `Invalid field TransactionType: ${tx.TransactionType}`,
       )
   }

packages/xahau/test/client/autofill.test.ts

@@ -1,12 +1,14 @@
 import { assert } from 'chai'
 
 import { EscrowFinish, Payment, Transaction } from '../../src'
+import { ValidationError } from '../../src/errors'
 import xahaud from '../fixtures/xahaud'
 import {
   setupClient,
   teardownClient,
   type XrplTestContext,
 } from '../setupClient'
+import { assertRejects } from '../testUtils'
 
 const NetworkID = 1025
 const Fee = '10'
@@ -15,6 +17,8 @@ const LastLedgerSequence = 2908734
 
 describe('client.autofill', function () {
   let testContext: XrplTestContext
+  const AMOUNT = '1234'
+  let paymentTx: Payment
 
   async function setupMockRippledVersionAndID(
     buildVersion: string,
@@ -38,6 +42,64 @@ describe('client.autofill', function () {
   })
   afterAll(async () => teardownClient(testContext))
 
+  beforeEach(async () => {
+    paymentTx = {
+      TransactionType: 'Payment',
+      Account: 'rUn84CUYbNjRoTQ6mSW7BVJPSVJNLb1QLo',
+      Amount: AMOUNT,
+      Destination: 'rfkE1aSy9G8Upk4JssnwBxhEv5p4mn2KTy',
+      DestinationTag: 1,
+      Fee: '12',
+      Flags: 2147483648,
+      LastLedgerSequence: 65953073,
+      Sequence: 65923914,
+      SigningPubKey:
+        '02F9E33F16DF9507705EC954E3F94EB5F10D1FC4A354606DBE6297DBB1096FE654',
+      TxnSignature:
+        '3045022100E3FAE0EDEC3D6A8FF6D81BC9CF8288A61B7EEDE8071E90FF9314CB4621058D10022043545CF631706D700CEE65A1DB83EFDD185413808292D9D90F14D87D3DC2D8CB',
+      InvoiceID:
+        '6F1DFD1D0FE8A32E40E1F2C05CF1C15545BAB56B617F9C6C2D63A6B704BEF59B',
+      Paths: [
+        [{ currency: 'BTC', issuer: 'r9vbV3EHvXWjSkeQ6CAcYVPGeq7TuiXY2X' }],
+      ],
+      SendMax: '100000000',
+    }
+  })
+
+  it('Validate Payment transaction API v2: Payment Transaction: Specify Only Amount field', async function () {
+    const txResult = await testContext.client.autofill(paymentTx)
+
+    assert.strictEqual(txResult.Amount, AMOUNT)
+  })
+
+  it('Validate Payment transaction API v2: Payment Transaction: Specify Only DeliverMax field', async function () {
+    // @ts-expect-error -- DeliverMax is a non-protocol, RPC level field in Payment transactions
+    paymentTx.DeliverMax = paymentTx.Amount
+    // @ts-expect-error -- DeliverMax is a non-protocol, RPC level field in Payment transactions
+    delete paymentTx.Amount
+    const txResult = await testContext.client.autofill(paymentTx)
+
+    assert.strictEqual(txResult.Amount, AMOUNT)
+  })
+
+  it('Validate Payment transaction API v2: Payment Transaction: identical DeliverMax and Amount fields', async function () {
+    // @ts-expect-error -- DeliverMax is a non-protocol, RPC level field in Payment transactions
+    paymentTx.DeliverMax = paymentTx.Amount
+
+    const txResult = await testContext.client.autofill(paymentTx)
+
+    assert.strictEqual(txResult.Amount, AMOUNT)
+    assert.strictEqual('DeliverMax' in txResult, false)
+  })
+
+  it('Validate Payment transaction API v2: Payment Transaction: differing DeliverMax and Amount fields', async function () {
+    // @ts-expect-error -- DeliverMax is a non-protocol, RPC level field in Payment transactions
+    paymentTx.DeliverMax = '6789'
+    paymentTx.Amount = '1234'
+
+    await assertRejects(testContext.client.autofill(paymentTx), ValidationError)
+  })
+
   it('should not autofill if fields are present', async function () {
     const tx: Transaction = {
       TransactionType: 'DepositPreauth',

packages/xahau/test/integration/requests/getAggregatePrice.test.ts

@@ -0,0 +1,78 @@
+import { stringToHex } from '@xrplf/isomorphic/utils'
+import { assert } from 'chai'
+
+import { OracleSet } from '../../../src'
+import serverUrl from '../serverUrl'
+import {
+  setupClient,
+  teardownClient,
+  type XrplIntegrationTestContext,
+} from '../setup'
+import { testTransaction } from '../utils'
+
+// how long before each test case times out
+const TIMEOUT = 20000
+
+describe('get_aggregate_price', function () {
+  let testContext: XrplIntegrationTestContext
+
+  beforeEach(async () => {
+    testContext = await setupClient(serverUrl)
+  })
+  afterEach(async () => teardownClient(testContext))
+
+  it(
+    'base',
+    async () => {
+      const tx: OracleSet = {
+        TransactionType: 'OracleSet',
+        Account: testContext.wallet.classicAddress,
+        OracleDocumentID: 1234,
+        LastUpdateTime: Math.floor(Date.now() / 1000),
+        PriceDataSeries: [
+          {
+            PriceData: {
+              BaseAsset: 'XRP',
+              QuoteAsset: 'USD',
+              AssetPrice: 740,
+              Scale: 3,
+            },
+          },
+        ],
+        Provider: stringToHex('chainlink'),
+        URI: '6469645F6578616D706C65',
+        AssetClass: stringToHex('currency'),
+      }
+
+      await testTransaction(testContext.client, tx, testContext.wallet)
+
+      // confirm that the Oracle was actually created
+      const getAggregatePriceResponse = await testContext.client.request({
+        command: 'get_aggregate_price',
+        account: testContext.wallet.classicAddress,
+        base_asset: 'XRP',
+        quote_asset: 'USD',
+        trim: 20,
+        oracles: [
+          {
+            account: testContext.wallet.classicAddress,
+            oracle_document_id: 1234,
+          },
+        ],
+      })
+      assert.deepEqual(getAggregatePriceResponse.result.entire_set, {
+        mean: '0.74',
+        size: 1,
+        standard_deviation: '0',
+      })
+      assert.deepEqual(getAggregatePriceResponse.result.trimmed_set, {
+        mean: '0.74',
+        size: 1,
+        standard_deviation: '0',
+      })
+      assert.equal(getAggregatePriceResponse.result.median, '0.74')
+      assert.equal(getAggregatePriceResponse.result.time, tx.LastUpdateTime)
+    },
+    TIMEOUT,
+  )
+})

packages/xahau/test/integration/transactions/oracleDelete.test.ts

@@ -0,0 +1,76 @@
+import { stringToHex } from '@xrplf/isomorphic/utils'
+import { assert } from 'chai'
+
+import { OracleSet, OracleDelete } from '../../../src'
+import serverUrl from '../serverUrl'
+import {
+  setupClient,
+  teardownClient,
+  type XrplIntegrationTestContext,
+} from '../setup'
+import { testTransaction } from '../utils'
+
+// how long before each test case times out
+const TIMEOUT = 20000
+
+describe('OracleDelete', function () {
+  let testContext: XrplIntegrationTestContext
+
+  beforeEach(async () => {
+    testContext = await setupClient(serverUrl)
+  })
+  afterEach(async () => teardownClient(testContext))
+
+  it(
+    'base',
+    async () => {
+      const setTx: OracleSet = {
+        TransactionType: 'OracleSet',
+        Account: testContext.wallet.classicAddress,
+        OracleDocumentID: 1234,
+        LastUpdateTime: Math.floor(Date.now() / 1000),
+        PriceDataSeries: [
+          {
+            PriceData: {
+              BaseAsset: 'XRP',
+              QuoteAsset: 'USD',
+              AssetPrice: 740,
+              Scale: 3,
+            },
+          },
+        ],
+        Provider: stringToHex('chainlink'),
+        URI: '6469645F6578616D706C65',
+        AssetClass: stringToHex('currency'),
+      }
+
+      await testTransaction(testContext.client, setTx, testContext.wallet)
+
+      const aoResult = await testContext.client.request({
+        command: 'account_objects',
+        account: testContext.wallet.classicAddress,
+        type: 'oracle',
+      })
+
+      // confirm that the Oracle was created
+      assert.equal(aoResult.result.account_objects.length, 1)
+
+      const deleteTx: OracleDelete = {
+        TransactionType: 'OracleDelete',
+        Account: testContext.wallet.classicAddress,
+        OracleDocumentID: 1234,
+      }
+
+      await testTransaction(testContext.client, deleteTx, testContext.wallet)
+
+      const aoResult2 = await testContext.client.request({
+        command: 'account_objects',
+        account: testContext.wallet.classicAddress,
+      })
+
+      // confirm that the Oracle was actually deleted
+      assert.equal(aoResult2.result.account_objects.length, 0)
+    },
+    TIMEOUT,
+  )
+})

packages/xahau/test/integration/transactions/oracleSet.test.ts

@@ -0,0 +1,91 @@
+import { stringToHex } from '@xrplf/isomorphic/utils'
+import { assert } from 'chai'
+
+import { OracleSet } from '../../../src'
+import { Oracle } from '../../../src/models/ledger'
+import serverUrl from '../serverUrl'
+import {
+  setupClient,
+  teardownClient,
+  type XrplIntegrationTestContext,
+} from '../setup'
+import { testTransaction } from '../utils'
+
+// how long before each test case times out
+const TIMEOUT = 20000
+
+describe('OracleSet', function () {
+  let testContext: XrplIntegrationTestContext
+
+  beforeEach(async () => {
+    testContext = await setupClient(serverUrl)
+  })
+  afterEach(async () => teardownClient(testContext))
+
+  it(
+    'base',
+    async () => {
+      const tx: OracleSet = {
+        TransactionType: 'OracleSet',
+        Account: testContext.wallet.classicAddress,
+        OracleDocumentID: 1234,
+        LastUpdateTime: Math.floor(Date.now() / 1000),
+        PriceDataSeries: [
+          {
+            PriceData: {
+              BaseAsset: 'XRP',
+              QuoteAsset: 'USD',
+              AssetPrice: 740,
+              Scale: 3,
+            },
+          },
+          {
+            PriceData: {
+              BaseAsset: 'XRP',
+              QuoteAsset: 'INR',
+              // Upper bound admissible value for AssetPrice field
+              // large numeric values necessarily have to use str type in Javascript
+              // number type uses double-precision floating point representation, hence represents a smaller range of values
+              AssetPrice: 'ffffffffffffffff',
+              Scale: 3,
+            },
+          },
+        ],
+        Provider: stringToHex('chainlink'),
+        URI: '6469645F6578616D706C65',
+        AssetClass: stringToHex('currency'),
+      }
+
+      await testTransaction(testContext.client, tx, testContext.wallet)
+
+      const result = await testContext.client.request({
+        command: 'account_objects',
+        account: testContext.wallet.classicAddress,
+        type: 'oracle',
+      })
+
+      // confirm that the Oracle was actually created
+      assert.equal(result.result.account_objects.length, 1)
+
+      // confirm details of Oracle ledger entry object
+      const oracle = result.result.account_objects[0] as Oracle
+      assert.equal(oracle.LastUpdateTime, tx.LastUpdateTime)
+      assert.equal(oracle.Owner, testContext.wallet.classicAddress)
+      assert.equal(oracle.AssetClass, tx.AssetClass)
+      assert.equal(oracle.Provider, tx.Provider)
+      assert.equal(oracle.PriceDataSeries.length, 2)
+      assert.equal(oracle.PriceDataSeries[1].PriceData.BaseAsset, 'XRP')
+      assert.equal(oracle.PriceDataSeries[1].PriceData.QuoteAsset, 'USD')
+      assert.equal(oracle.PriceDataSeries[1].PriceData.AssetPrice, '2e4')
+      assert.equal(oracle.PriceDataSeries[1].PriceData.Scale, 3)
+      assert.equal(oracle.Flags, 0)
+
+      // validate the serialization of large AssetPrice values
+      assert.equal(
+        oracle.PriceDataSeries[0].PriceData.AssetPrice,
+        'ffffffffffffffff',
+      )
+    },
+    TIMEOUT,
+  )
+})

packages/xahau/test/integration/transactions/payment.test.ts

@@ -1,3 +1,5 @@
+import { assert } from 'chai'
+
 import { Payment, Wallet } from '../../../src'
 import serverUrl from '../serverUrl'
 import {
@@ -12,9 +14,22 @@ const TIMEOUT = 20000
 
 describe('Payment', function () {
   let testContext: XrplIntegrationTestContext
+  let paymentTx: Payment
+  const AMOUNT = '10000000'
   // This wallet is used for DeliverMax related tests
   let senderWallet: Wallet
 
+  beforeEach(async () => {
+    // this payment transaction JSON needs to be refreshed before every test.
+    // Because, we tinker with Amount and DeliverMax fields in the API v2 tests
+    paymentTx = {
+      TransactionType: 'Payment',
+      Account: senderWallet.classicAddress,
+      Amount: AMOUNT,
+      Destination: 'rfkE1aSy9G8Upk4JssnwBxhEv5p4mn2KTy',
+    }
+  })
+
   beforeAll(async () => {
     testContext = await setupClient(serverUrl)
     senderWallet = await generateFundedWallet(testContext.client)
@@ -34,4 +49,57 @@ describe('Payment', function () {
     },
     TIMEOUT,
   )
+
+  it(
+    'Validate Payment transaction API v2: Payment Transaction: Specify Only Amount field',
+    async () => {
+      const result = await testTransaction(
+        testContext.client,
+        paymentTx,
+        senderWallet,
+      )
+
+      assert.equal(result.result.engine_result_code, 0)
+      assert.equal((result.result.tx_json as Payment).Amount, AMOUNT)
+    },
+    TIMEOUT,
+  )
+
+  it(
+    'Validate Payment transaction API v2: Payment Transaction: Specify Only DeliverMax field',
+    async () => {
+      // @ts-expect-error -- DeliverMax is a non-protocol, RPC level field in Payment transactions
+      paymentTx.DeliverMax = paymentTx.Amount
+      // @ts-expect-error -- DeliverMax is a non-protocol, RPC level field in Payment transactions
+      delete paymentTx.Amount
+
+      const result = await testTransaction(
+        testContext.client,
+        paymentTx,
+        senderWallet,
+      )
+
+      assert.equal(result.result.engine_result_code, 0)
+      assert.equal((result.result.tx_json as Payment).Amount, AMOUNT)
+    },
+    TIMEOUT,
+  )
+
+  it(
+    'Validate Payment transaction API v2: Payment Transaction: identical DeliverMax and Amount fields',
+    async () => {
+      // @ts-expect-error -- DeliverMax is a non-protocol, RPC level field in Payment transactions
+      paymentTx.DeliverMax = paymentTx.Amount
+
+      const result = await testTransaction(
+        testContext.client,
+        paymentTx,
+        senderWallet,
+      )
+
+      assert.equal(result.result.engine_result_code, 0)
+      assert.equal((result.result.tx_json as Payment).Amount, AMOUNT)
+    },
+    TIMEOUT,
+  )
 })

packages/xahau/test/models/oracleDelete.test.ts

@@ -0,0 +1,40 @@
+import { assert } from 'chai'
+
+import { validate, ValidationError } from '../../src'
+import { validateOracleDelete } from '../../src/models/transactions/oracleDelete'
+
+/**
+ * OracleDelete Transaction Verification Testing.
+ *
+ * Providing runtime verification testing for each specific transaction type.
+ */
+describe('OracleDelete', function () {
+  let tx
+
+  beforeEach(function () {
+    tx = {
+      TransactionType: 'OracleDelete',
+      Account: 'rfmDuhDyLGgx94qiwf3YF8BUV5j6KSvE8',
+      OracleDocumentID: 1234,
+    } as any
+  })
+
+  it('verifies valid OracleDelete', function () {
+    assert.doesNotThrow(() => validateOracleDelete(tx))
+    assert.doesNotThrow(() => validate(tx))
+  })
+
+  it(`throws w/ missing field OracleDocumentID`, function () {
+    delete tx.OracleDocumentID
+    const errorMessage = 'OracleDelete: missing field OracleDocumentID'
+    assert.throws(() => validateOracleDelete(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ invalid OracleDocumentID`, function () {
+    tx.OracleDocumentID = '1234'
+    const errorMessage = 'OracleDelete: invalid field OracleDocumentID'
+    assert.throws(() => validateOracleDelete(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+})

packages/xahau/test/models/oracleSet.test.ts

@@ -0,0 +1,212 @@
+import { stringToHex } from '@xrplf/isomorphic/dist/utils'
+import { assert } from 'chai'
+
+import { validate, ValidationError } from '../../src'
+import { validateOracleSet } from '../../src/models/transactions/oracleSet'
+
+/**
+ * OracleSet Transaction Verification Testing.
+ *
+ * Providing runtime verification testing for each specific transaction type.
+ */
+describe('OracleSet', function () {
+  let tx
+
+  beforeEach(function () {
+    tx = {
+      TransactionType: 'OracleSet',
+      Account: 'rfmDuhDyLGgx94qiwf3YF8BUV5j6KSvE8',
+      OracleDocumentID: 1234,
+      LastUpdateTime: 768062172,
+      PriceDataSeries: [
+        {
+          PriceData: {
+            BaseAsset: 'XRP',
+            QuoteAsset: 'USD',
+            AssetPrice: 740,
+            Scale: 3,
+          },
+        },
+      ],
+      Provider: stringToHex('chainlink'),
+      URI: '6469645F6578616D706C65',
+      AssetClass: stringToHex('currency'),
+    } as any
+  })
+
+  it('verifies valid OracleSet', function () {
+    assert.doesNotThrow(() => validateOracleSet(tx))
+    assert.doesNotThrow(() => validate(tx))
+  })
+
+  it(`throws w/ missing field OracleDocumentID`, function () {
+    delete tx.OracleDocumentID
+    const errorMessage = 'OracleSet: missing field OracleDocumentID'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ invalid OracleDocumentID`, function () {
+    tx.OracleDocumentID = '1234'
+    const errorMessage = 'OracleSet: invalid field OracleDocumentID'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ missing field LastUpdateTime`, function () {
+    delete tx.LastUpdateTime
+    const errorMessage = 'OracleSet: missing field LastUpdateTime'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ invalid LastUpdateTime`, function () {
+    tx.LastUpdateTime = '768062172'
+    const errorMessage = 'OracleSet: invalid field LastUpdateTime'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ missing invalid Provider`, function () {
+    tx.Provider = 1234
+    const errorMessage = 'OracleSet: invalid field Provider'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ missing invalid URI`, function () {
+    tx.URI = 1234
+    const errorMessage = 'OracleSet: invalid field URI'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ missing invalid AssetClass`, function () {
+    tx.AssetClass = 1234
+    const errorMessage = 'OracleSet: invalid field AssetClass'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ invalid PriceDataSeries must be an array`, function () {
+    tx.PriceDataSeries = 1234
+    const errorMessage = 'OracleSet: PriceDataSeries must be an array'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ invalid PriceDataSeries must be an array of objects`, function () {
+    tx.PriceDataSeries = [1234]
+    const errorMessage =
+      'OracleSet: PriceDataSeries must be an array of objects'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ PriceDataSeries must have at most 10 PriceData objects`, function () {
+    tx.PriceDataSeries = new Array(11).fill({
+      PriceData: {
+        BaseAsset: 'XRP',
+        QuoteAsset: 'USD',
+        AssetPrice: 740,
+        Scale: 3,
+      },
+    })
+    const errorMessage =
+      'OracleSet: PriceDataSeries must have at most 10 PriceData objects'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ PriceDataSeries must have a PriceData object`, function () {
+    delete tx.PriceDataSeries[0].PriceData
+    const errorMessage =
+      'OracleSet: PriceDataSeries must have a `PriceData` object'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ PriceDataSeries must only have a single PriceData object`, function () {
+    tx.PriceDataSeries[0].ExtraProp = 'extraprop'
+    const errorMessage =
+      'OracleSet: PriceDataSeries must only have a single PriceData object'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ missing BaseAsset of PriceDataSeries`, function () {
+    delete tx.PriceDataSeries[0].PriceData.BaseAsset
+    const errorMessage =
+      'OracleSet: PriceDataSeries must have a `BaseAsset` string'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ missing QuoteAsset of PriceDataSeries`, function () {
+    delete tx.PriceDataSeries[0].PriceData.QuoteAsset
+    const errorMessage =
+      'OracleSet: PriceDataSeries must have a `QuoteAsset` string'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ missing AssetPrice with Scale present of PriceDataSeries`, function () {
+    delete tx.PriceDataSeries[0].PriceData.AssetPrice
+    const errorMessage =
+      'OracleSet: PriceDataSeries must have both `AssetPrice` and `Scale` if any are present'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ missing Scale with AssetPrice present of PriceDataSeries`, function () {
+    delete tx.PriceDataSeries[0].PriceData.Scale
+    const errorMessage =
+      'OracleSet: PriceDataSeries must have both `AssetPrice` and `Scale` if any are present'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ invalid AssetPrice of PriceDataSeries`, function () {
+    // value cannot be parsed as hexadecimal number
+    tx.PriceDataSeries[0].PriceData.AssetPrice = 'ghij'
+    const errorMessage =
+      'OracleSet: Field AssetPrice must be a valid hex string'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`verifies valid AssetPrice of PriceDataSeries`, function () {
+    // valid string which can be parsed as hexadecimal number
+    tx.PriceDataSeries[0].PriceData.AssetPrice = 'ab15'
+    assert.doesNotThrow(() => validate(tx))
+  })
+
+  it(`throws w/ invalid AssetPrice type in PriceDataSeries`, function () {
+    tx.PriceDataSeries[0].PriceData.AssetPrice = ['sample', 'invalid', 'type']
+    const errorMessage =
+      'OracleSet: Field AssetPrice must be a string or a number'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ invalid Scale of PriceDataSeries`, function () {
+    tx.PriceDataSeries[0].PriceData.Scale = '1234'
+    const errorMessage = 'OracleSet: invalid field Scale'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ Scale must be in range 0-10 when above max`, function () {
+    tx.PriceDataSeries[0].PriceData.Scale = 11
+    const errorMessage = 'OracleSet: Scale must be in range 0-10'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+
+  it(`throws w/ Scale must be in range 0-10 when below min`, function () {
+    tx.PriceDataSeries[0].PriceData.Scale = -1
+    const errorMessage = 'OracleSet: Scale must be in range 0-10'
+    assert.throws(() => validateOracleSet(tx), ValidationError, errorMessage)
+    assert.throws(() => validate(tx), ValidationError, errorMessage)
+  })
+})