Handle Gas / Estimates on a Per Network Basis (#1160)

* Give each network the ability to specify default estimates, and whether or not they should fetch estimates from API. Convert gas slider to always use estimates.

* Fix gas cache invalidation, invalid too high / low logic.

* Fix up tests.

* tscheck

common/api/gas.ts

@@ -17,6 +17,7 @@ export interface GasEstimates {
   fast: number;
   fastest: number;
   time: number;
+  chainId: number;
   isDefault: boolean;
 }
 
@@ -66,6 +67,7 @@ export function fetchGasEstimates(): Promise<GasEstimates> {
     .then((res: RawGasEstimates) => ({
       ...res,
       time: Date.now(),
+      chainId: 1,
       isDefault: false
     }));
 }

common/components/Header/components/GasPriceDropdown.tsx

@@ -1,88 +0,0 @@
-import { gasPriceDefaults, HELP_ARTICLE } from 'config';
-import throttle from 'lodash/throttle';
-import React, { Component } from 'react';
-import { DropdownShell, HelpLink } from 'components/ui';
-import './GasPriceDropdown.scss';
-import { SetGasLimitFieldAction } from 'actions/transaction';
-import { gasPricetoBase } from 'libs/units';
-import { AppState } from 'reducers';
-import { getGasPrice } from 'selectors/transaction';
-import { connect } from 'react-redux';
-
-interface OwnProps {
-  onChange(payload: SetGasLimitFieldAction['payload']): void;
-}
-
-interface StateProps {
-  gasPrice: AppState['transaction']['fields']['gasPrice'];
-}
-
-type Props = OwnProps & StateProps;
-
-class GasPriceDropdown extends Component<Props> {
-  constructor(props: Props) {
-    super(props);
-    this.updateGasPrice = throttle(this.updateGasPrice, 50);
-  }
-
-  public render() {
-    return (
-      <DropdownShell
-        color="white"
-        size="smr"
-        ariaLabel={`adjust gas price. current price is ${this.props.gasPrice.raw} gwei`}
-        renderLabel={this.renderLabel}
-        renderOptions={this.renderOptions}
-      />
-    );
-  }
-
-  private renderLabel = () => {
-    return (
-      <span>
-        Gas Price<span className="hidden-xs">: {this.props.gasPrice.raw} Gwei</span>
-      </span>
-    );
-  };
-
-  private renderOptions = () => {
-    return (
-      <div className="GasPrice-dropdown-menu dropdown-menu dropdown-menu-right">
-        <div className="GasPrice-header">
-          <span>Gas Price</span>: {this.props.gasPrice.raw} Gwei
-          <input
-            type="range"
-            value={this.props.gasPrice.raw}
-            min={gasPriceDefaults.minGwei}
-            max={gasPriceDefaults.maxGwei}
-            onChange={this.handleGasPriceChange}
-          />
-          <p className="small col-xs-4 text-left GasPrice-padding-reset">Not So Fast</p>
-          <p className="small col-xs-4 text-center GasPrice-padding-reset">Fast</p>
-          <p className="small col-xs-4 text-right GasPrice-padding-reset">Fast AF</p>
-          <p className="small GasPrice-description">
-            Gas Price is the amount you pay per unit of gas.{' '}
-            <code>TX fee = gas price * gas limit</code> & is paid to miners for including your TX in
-            a block. Higher the gas price = faster transaction, but more expensive. Default is{' '}
-            <code>21 GWEI</code>.
-          </p>
-          <p>
-            <HelpLink article={HELP_ARTICLE.WHAT_IS_GAS}>Read more</HelpLink>
-          </p>
-        </div>
-      </div>
-    );
-  };
-
-  private updateGasPrice = (value: string) => {
-    this.props.onChange({ raw: value, value: gasPricetoBase(parseInt(value, 10)) });
-  };
-
-  private handleGasPriceChange = (e: React.FormEvent<HTMLInputElement>) => {
-    this.updateGasPrice(e.currentTarget.value);
-  };
-}
-
-const mapStateToProps = (state: AppState): StateProps => ({ gasPrice: getGasPrice(state) });
-
-export default connect(mapStateToProps)(GasPriceDropdown);

common/components/TXMetaDataPanel/TXMetaDataPanel.tsx

@@ -125,8 +125,10 @@ class TXMetaDataPanel extends React.Component<Props, State> {
   };
 
   private handleGasPriceInput = (raw: string) => {
-    const gasBn = new BN(raw);
-    const value = gasBn.mul(new BN(Units.gwei));
+    // Realistically, we're not going to end up with a > 32 bit int, so it's
+    // safe to cast to float, multiply by gwei units, then big number, since
+    // some of the inputs may be sub-one float values.
+    const value = new BN(parseFloat(raw) * parseFloat(Units.gwei));
     this.setState({
       gasPrice: { raw, value }
     });

common/components/TXMetaDataPanel/components/SimpleGas.tsx

@@ -1,7 +1,6 @@
 import React from 'react';
 import Slider from 'rc-slider';
 import translate, { translateRaw } from 'translations';
-import { gasPriceDefaults } from 'config';
 import FeeSummary from './FeeSummary';
 import './SimpleGas.scss';
 import { AppState } from 'reducers';
@@ -15,6 +14,7 @@ import { fetchGasEstimates, TFetchGasEstimates } from 'actions/gas';
 import { getIsWeb3Node } from 'selectors/config';
 import { getEstimates, getIsEstimating } from 'selectors/gas';
 import { Wei, fromWei } from 'libs/units';
+import { gasPriceDefaults } from 'config';
 import { InlineSpinner } from 'components/ui/InlineSpinner';
 const SliderWithTooltip = Slider.createSliderWithTooltip(Slider);
 
@@ -41,7 +41,7 @@ type Props = OwnProps & StateProps & ActionProps;
 
 class SimpleGas extends React.Component<Props> {
   public componentDidMount() {
-    this.fixGasPrice(this.props.gasPrice);
+    this.fixGasPrice();
     this.props.fetchGasEstimates();
   }
 
@@ -63,8 +63,8 @@ class SimpleGas extends React.Component<Props> {
     } = this.props;
 
     const bounds = {
-      max: gasEstimates ? gasEstimates.fastest : gasPriceDefaults.minGwei,
-      min: gasEstimates ? gasEstimates.safeLow : gasPriceDefaults.maxGwei
+      max: gasEstimates ? gasEstimates.fastest : gasPriceDefaults.max,
+      min: gasEstimates ? gasEstimates.safeLow : gasPriceDefaults.min
     };
 
     return (
@@ -93,6 +93,7 @@ class SimpleGas extends React.Component<Props> {
               onChange={this.handleSlider}
               min={bounds.min}
               max={bounds.max}
+              step={bounds.min < 1 ? 0.1 : 1}
               value={this.getGasPriceGwei(gasPrice.value)}
               tipFormatter={this.formatTooltip}
               disabled={isGasEstimating}
@@ -119,13 +120,18 @@ class SimpleGas extends React.Component<Props> {
     this.props.inputGasPrice(gasGwei.toString());
   };
 
-  private fixGasPrice(gasPrice: AppState['transaction']['fields']['gasPrice']) {
+  private fixGasPrice() {
+    const { gasPrice, gasEstimates } = this.props;
+    if (!gasEstimates) {
+      return;
+    }
+
     // If the gas price is above or below our minimum, bring it in line
     const gasPriceGwei = this.getGasPriceGwei(gasPrice.value);
-    if (gasPriceGwei > gasPriceDefaults.maxGwei) {
-      this.props.setGasPrice(gasPriceDefaults.maxGwei.toString());
-    } else if (gasPriceGwei < gasPriceDefaults.minGwei) {
-      this.props.setGasPrice(gasPriceDefaults.minGwei.toString());
+    if (gasPriceGwei < gasEstimates.safeLow) {
+      this.props.setGasPrice(gasEstimates.safeLow.toString());
+    } else if (gasPriceGwei > gasEstimates.fastest) {
+      this.props.setGasPrice(gasEstimates.fastest.toString());
     }
   }
 

common/config/constants.ts

@@ -3,6 +3,6 @@ export const GAS_LIMIT_LOWER_BOUND = 21000;
 export const GAS_LIMIT_UPPER_BOUND = 8000000;
 
 // Lower/upper ranges for gas price in gwei
-export const GAS_PRICE_GWEI_LOWER_BOUND = 1;
-export const GAS_PRICE_GWEI_UPPER_BOUND = 10000;
-export const GAS_PRICE_GWEI_DEFAULT = 40;
+export const GAS_PRICE_GWEI_LOWER_BOUND = 0.01;
+export const GAS_PRICE_GWEI_UPPER_BOUND = 3000;
+export const GAS_PRICE_GWEI_DEFAULT = 20;

common/config/data.tsx

@@ -1,6 +1,7 @@
 import React from 'react'; // For ANNOUNCEMENT_MESSAGE jsx
 import { getValues } from '../utils/helpers';
 import packageJson from '../../package.json';
+import { GasPriceSetting } from 'types/network';
 
 export const languages = require('./languages.json');
 
@@ -42,12 +43,12 @@ export const donationAddressMap = {
   REP: '0x4bbeEB066eD09B7AEd07bF39EEe0460DFa261520'
 };
 
-export const gasPriceDefaults = {
-  minGwei: 1,
-  maxGwei: 60,
-  default: 21
-};
 export const gasEstimateCacheTime = 60000;
+export const gasPriceDefaults: GasPriceSetting = {
+  min: 1,
+  max: 60,
+  initial: 20
+};
 
 export const MINIMUM_PASSWORD_LENGTH = 12;
 

common/reducers/config/networks/staticNetworks.ts

@@ -1,4 +1,10 @@
-import { ethPlorer, ETHTokenExplorer, SecureWalletName, InsecureWalletName } from 'config/data';
+import {
+  ethPlorer,
+  ETHTokenExplorer,
+  SecureWalletName,
+  InsecureWalletName,
+  gasPriceDefaults
+} from 'config/data';
 import {
   ETH_DEFAULT,
   ETH_TREZOR,
@@ -27,7 +33,13 @@ export function makeExplorer(name: string, origin: string): BlockExplorerConfig
   };
 }
 
-const INITIAL_STATE: State = {
+const testnetDefaultGasPrice = {
+  min: 0.1,
+  max: 40,
+  initial: 4
+};
+
+export const INITIAL_STATE: State = {
   ETH: {
     name: 'ETH',
     unit: 'ETH',
@@ -45,7 +57,9 @@ const INITIAL_STATE: State = {
       [SecureWalletName.TREZOR]: ETH_TREZOR,
       [SecureWalletName.LEDGER_NANO_S]: ETH_LEDGER,
       [InsecureWalletName.MNEMONIC_PHRASE]: ETH_DEFAULT
-    }
+    },
+    gasPriceSettings: gasPriceDefaults,
+    shouldEstimateGasPrice: true
   },
   Ropsten: {
     name: 'Ropsten',
@@ -61,7 +75,8 @@ const INITIAL_STATE: State = {
       [SecureWalletName.TREZOR]: ETH_TESTNET,
       [SecureWalletName.LEDGER_NANO_S]: ETH_TESTNET,
       [InsecureWalletName.MNEMONIC_PHRASE]: ETH_TESTNET
-    }
+    },
+    gasPriceSettings: testnetDefaultGasPrice
   },
   Kovan: {
     name: 'Kovan',
@@ -77,7 +92,8 @@ const INITIAL_STATE: State = {
       [SecureWalletName.TREZOR]: ETH_TESTNET,
       [SecureWalletName.LEDGER_NANO_S]: ETH_TESTNET,
       [InsecureWalletName.MNEMONIC_PHRASE]: ETH_TESTNET
-    }
+    },
+    gasPriceSettings: testnetDefaultGasPrice
   },
   Rinkeby: {
     name: 'Rinkeby',
@@ -93,7 +109,8 @@ const INITIAL_STATE: State = {
       [SecureWalletName.TREZOR]: ETH_TESTNET,
       [SecureWalletName.LEDGER_NANO_S]: ETH_TESTNET,
       [InsecureWalletName.MNEMONIC_PHRASE]: ETH_TESTNET
-    }
+    },
+    gasPriceSettings: testnetDefaultGasPrice
   },
   ETC: {
     name: 'ETC',
@@ -108,6 +125,11 @@ const INITIAL_STATE: State = {
       [SecureWalletName.TREZOR]: ETC_TREZOR,
       [SecureWalletName.LEDGER_NANO_S]: ETC_LEDGER,
       [InsecureWalletName.MNEMONIC_PHRASE]: ETC_TREZOR
+    },
+    gasPriceSettings: {
+      min: 0.1,
+      max: 10,
+      initial: 1
     }
   },
   UBQ: {
@@ -123,6 +145,11 @@ const INITIAL_STATE: State = {
       [SecureWalletName.TREZOR]: UBQ_DEFAULT,
       [SecureWalletName.LEDGER_NANO_S]: UBQ_DEFAULT,
       [InsecureWalletName.MNEMONIC_PHRASE]: UBQ_DEFAULT
+    },
+    gasPriceSettings: {
+      min: 1,
+      max: 60,
+      initial: 20
     }
   },
   EXP: {
@@ -138,6 +165,11 @@ const INITIAL_STATE: State = {
       [SecureWalletName.TREZOR]: EXP_DEFAULT,
       [SecureWalletName.LEDGER_NANO_S]: EXP_DEFAULT,
       [InsecureWalletName.MNEMONIC_PHRASE]: EXP_DEFAULT
+    },
+    gasPriceSettings: {
+      min: 0.1,
+      max: 20,
+      initial: 2
     }
   }
 };

common/reducers/transaction/fields/fields.ts

@@ -11,7 +11,6 @@ import {
 import { Reducer } from 'redux';
 import { State } from './typings';
 import { gasPricetoBase } from 'libs/units';
-import { gasPriceDefaults } from 'config';
 
 const INITIAL_STATE: State = {
   to: { raw: '', value: null },
@@ -19,10 +18,7 @@ const INITIAL_STATE: State = {
   nonce: { raw: '', value: null },
   value: { raw: '', value: null },
   gasLimit: { raw: '21000', value: new BN(21000) },
-  gasPrice: {
-    raw: gasPriceDefaults.default.toString(),
-    value: gasPricetoBase(gasPriceDefaults.default)
-  }
+  gasPrice: { raw: '20', value: gasPricetoBase(20) }
 };
 
 const updateField = (key: keyof State): Reducer<State> => (state: State, action: FieldAction) => ({

common/sagas/gas.ts

@@ -5,35 +5,49 @@ import { AppState } from 'reducers';
 import { fetchGasEstimates, GasEstimates } from 'api/gas';
 import { gasPriceDefaults, gasEstimateCacheTime } from 'config';
 import { getEstimates } from 'selectors/gas';
-import { getOffline } from 'selectors/config';
+import { getOffline, getNetworkConfig } from 'selectors/config';
+import { NetworkConfig } from 'types/network';
 
-export function* setDefaultEstimates(): SagaIterator {
+export function* setDefaultEstimates(network: NetworkConfig): SagaIterator {
   // Must yield time for testability
   const time = yield call(Date.now);
+  const gasSettings = network.isCustom ? gasPriceDefaults : network.gasPriceSettings;
 
   yield put(
     setGasEstimates({
-      safeLow: gasPriceDefaults.minGwei,
-      standard: gasPriceDefaults.default,
-      fast: gasPriceDefaults.default,
-      fastest: gasPriceDefaults.maxGwei,
+      safeLow: gasSettings.min,
+      standard: gasSettings.initial,
+      fast: gasSettings.initial,
+      fastest: gasSettings.max,
       isDefault: true,
+      chainId: network.chainId,
       time
     })
   );
 }
 
 export function* fetchEstimates(): SagaIterator {
-  // Don't even try offline
+  // Don't try on non-estimating network
+  const network: NetworkConfig = yield select(getNetworkConfig);
+  if (network.isCustom || !network.shouldEstimateGasPrice) {
+    yield call(setDefaultEstimates, network);
+    return;
+  }
+
+  // Don't try while offline
   const isOffline: boolean = yield select(getOffline);
   if (isOffline) {
-    yield call(setDefaultEstimates);
+    yield call(setDefaultEstimates, network);
     return;
   }
 
   // Cache estimates for a bit
   const oldEstimates: AppState['gas']['estimates'] = yield select(getEstimates);
-  if (oldEstimates && oldEstimates.time + gasEstimateCacheTime > Date.now()) {
+  if (
+    oldEstimates &&
+    oldEstimates.chainId === network.chainId &&
+    oldEstimates.time + gasEstimateCacheTime > Date.now()
+  ) {
     yield put(setGasEstimates(oldEstimates));
     return;
   }
@@ -44,7 +58,7 @@ export function* fetchEstimates(): SagaIterator {
     yield put(setGasEstimates(estimates));
   } catch (err) {
     console.warn('Failed to fetch gas estimates:', err);
-    yield call(setDefaultEstimates);
+    yield call(setDefaultEstimates, network);
   }
 }
 

shared/types/network.d.ts

@@ -29,6 +29,12 @@ interface DPathFormats {
   mnemonicPhrase: DPath;
 }
 
+export interface GasPriceSetting {
+  min: number;
+  max: number;
+  initial: number;
+}
+
 interface StaticNetworkConfig {
   isCustom: false; // used for type guards
   name: StaticNetworkIds;
@@ -44,6 +50,8 @@ interface StaticNetworkConfig {
   contracts: NetworkContract[] | null;
   dPathFormats: DPathFormats;
   isTestnet?: boolean;
+  gasPriceSettings: GasPriceSetting;
+  shouldEstimateGasPrice?: boolean;
 }
 
 interface CustomNetworkConfig {

spec/reducers/config/networks/staticNetworks.spec.ts

@@ -1,138 +1,8 @@
-import { staticNetworks, makeExplorer } from 'reducers/config/networks/staticNetworks';
-import { ethPlorer, ETHTokenExplorer, SecureWalletName, InsecureWalletName } from 'config/data';
-import {
-  ETH_DEFAULT,
-  ETH_TREZOR,
-  ETH_LEDGER,
-  ETC_LEDGER,
-  ETC_TREZOR,
-  ETH_TESTNET,
-  EXP_DEFAULT,
-  UBQ_DEFAULT
-} from 'config/dpaths';
-
-const expectedInitialState = {
-  ETH: {
-    name: 'ETH',
-    unit: 'ETH',
-    chainId: 1,
-    isCustom: false,
-    color: '#0e97c0',
-    blockExplorer: makeExplorer('Etherscan', 'https://etherscan.io'),
-    tokenExplorer: {
-      name: ethPlorer,
-      address: ETHTokenExplorer
-    },
-    tokens: require('config/tokens/eth.json'),
-    contracts: require('config/contracts/eth.json'),
-    dPathFormats: {
-      [SecureWalletName.TREZOR]: ETH_TREZOR,
-      [SecureWalletName.LEDGER_NANO_S]: ETH_LEDGER,
-      [InsecureWalletName.MNEMONIC_PHRASE]: ETH_DEFAULT
-    }
-  },
-  Ropsten: {
-    name: 'Ropsten',
-    unit: 'ETH',
-    chainId: 3,
-    isCustom: false,
-    color: '#adc101',
-    blockExplorer: makeExplorer('Etherscan', 'https://ropsten.etherscan.io'),
-    tokens: require('config/tokens/ropsten.json'),
-    contracts: require('config/contracts/ropsten.json'),
-    isTestnet: true,
-    dPathFormats: {
-      [SecureWalletName.TREZOR]: ETH_TESTNET,
-      [SecureWalletName.LEDGER_NANO_S]: ETH_TESTNET,
-      [InsecureWalletName.MNEMONIC_PHRASE]: ETH_TESTNET
-    }
-  },
-  Kovan: {
-    name: 'Kovan',
-    unit: 'ETH',
-    chainId: 42,
-    isCustom: false,
-    color: '#adc101',
-    blockExplorer: makeExplorer('Etherscan', 'https://kovan.etherscan.io'),
-    tokens: require('config/tokens/ropsten.json'),
-    contracts: require('config/contracts/ropsten.json'),
-    isTestnet: true,
-    dPathFormats: {
-      [SecureWalletName.TREZOR]: ETH_TESTNET,
-      [SecureWalletName.LEDGER_NANO_S]: ETH_TESTNET,
-      [InsecureWalletName.MNEMONIC_PHRASE]: ETH_TESTNET
-    }
-  },
-  Rinkeby: {
-    name: 'Rinkeby',
-    unit: 'ETH',
-    chainId: 4,
-    isCustom: false,
-    color: '#adc101',
-    blockExplorer: makeExplorer('Etherscan', 'https://rinkeby.etherscan.io'),
-    tokens: require('config/tokens/rinkeby.json'),
-    contracts: require('config/contracts/rinkeby.json'),
-    isTestnet: true,
-    dPathFormats: {
-      [SecureWalletName.TREZOR]: ETH_TESTNET,
-      [SecureWalletName.LEDGER_NANO_S]: ETH_TESTNET,
-      [InsecureWalletName.MNEMONIC_PHRASE]: ETH_TESTNET
-    }
-  },
-  ETC: {
-    name: 'ETC',
-    unit: 'ETC',
-    chainId: 61,
-    isCustom: false,
-    color: '#669073',
-    blockExplorer: makeExplorer('GasTracker', 'https://gastracker.io'),
-    tokens: require('config/tokens/etc.json'),
-    contracts: require('config/contracts/etc.json'),
-    dPathFormats: {
-      [SecureWalletName.TREZOR]: ETC_TREZOR,
-      [SecureWalletName.LEDGER_NANO_S]: ETC_LEDGER,
-      [InsecureWalletName.MNEMONIC_PHRASE]: ETC_TREZOR
-    }
-  },
-  UBQ: {
-    name: 'UBQ',
-    unit: 'UBQ',
-    chainId: 8,
-    isCustom: false,
-    color: '#b37aff',
-    blockExplorer: makeExplorer('Ubiqscan', 'https://ubiqscan.io/en'),
-    tokens: require('config/tokens/ubq.json'),
-    contracts: require('config/contracts/ubq.json'),
-    dPathFormats: {
-      [SecureWalletName.TREZOR]: UBQ_DEFAULT,
-      [SecureWalletName.LEDGER_NANO_S]: UBQ_DEFAULT,
-      [InsecureWalletName.MNEMONIC_PHRASE]: UBQ_DEFAULT
-    }
-  },
-  EXP: {
-    name: 'EXP',
-    unit: 'EXP',
-    chainId: 2,
-    isCustom: false,
-    color: '#673ab7',
-    blockExplorer: makeExplorer('Gander', 'https://www.gander.tech'),
-    tokens: require('config/tokens/exp.json'),
-    contracts: require('config/contracts/exp.json'),
-    dPathFormats: {
-      [SecureWalletName.TREZOR]: EXP_DEFAULT,
-      [SecureWalletName.LEDGER_NANO_S]: EXP_DEFAULT,
-      [InsecureWalletName.MNEMONIC_PHRASE]: EXP_DEFAULT
-    }
-  }
-};
-
-const expectedState = {
-  initialState: expectedInitialState
-};
+import { INITIAL_STATE, staticNetworks } from 'reducers/config/networks/staticNetworks';
 
 describe('Testing contained data', () => {
   it(`contain unique chainIds`, () => {
-    const networkValues = Object.values(expectedInitialState);
+    const networkValues = Object.values(INITIAL_STATE);
     const chainIds = networkValues.map(a => a.chainId);
     const chainIdsSet = new Set(chainIds);
     expect(Array.from(chainIdsSet).length).toEqual(chainIds.length);
@@ -142,8 +12,6 @@ describe('Testing contained data', () => {
 describe('static networks reducer', () => {
   it('should return the initial state', () =>
     expect(JSON.stringify(staticNetworks(undefined, {} as any))).toEqual(
-      JSON.stringify(expectedState.initialState)
+      JSON.stringify(INITIAL_STATE)
     ));
 });
-
-export { expectedState as staticNetworksExpectedState };

spec/reducers/gas.spec.ts

@@ -18,6 +18,7 @@ describe('gas reducer', () => {
       fast: 4,
       fastest: 20,
       time: Date.now(),
+      chainId: 1,
       isDefault: false
     };
     const state = gas(undefined, setGasEstimates(estimates));

spec/sagas/gas.spec.ts

@@ -4,8 +4,13 @@ import { cloneableGenerator } from 'redux-saga/utils';
 import { fetchGasEstimates, GasEstimates } from 'api/gas';
 import { setGasEstimates } from 'actions/gas';
 import { getEstimates } from 'selectors/gas';
-import { getOffline } from 'selectors/config';
+import { getOffline, getNetworkConfig } from 'selectors/config';
 import { gasPriceDefaults, gasEstimateCacheTime } from 'config';
+import { staticNetworks } from 'reducers/config/networks/staticNetworks';
+
+const networkState = staticNetworks(undefined, {} as any);
+const network = networkState.ETH;
+const nonEstimateNetwork = networkState.ETC;
 
 describe('fetchEstimates*', () => {
   const gen = cloneableGenerator(fetchEstimates)();
@@ -16,24 +21,42 @@ describe('fetchEstimates*', () => {
     fast: 4,
     fastest: 20,
     time: Date.now() - gasEstimateCacheTime - 1000,
+    chainId: network.chainId,
     isDefault: false
   };
-  const newEstimates: GasEstimates = {
+  const newTimeEstimates: GasEstimates = {
     safeLow: 2,
     standard: 2,
     fast: 8,
     fastest: 80,
     time: Date.now(),
+    chainId: network.chainId,
     isDefault: false
   };
+  const newChainIdEstimates: GasEstimates = {
+    ...oldEstimates,
+    chainId: network.chainId + 1
+  };
 
-  it('Should select getOffline', () => {
-    expect(gen.next().value).toEqual(select(getOffline));
+  it('Should select getNetworkConfig', () => {
+    expect(gen.next().value).toEqual(select(getNetworkConfig));
   });
 
-  it('Should use default estimates if offline', () => {
+  it('Should use network default gas price settings if network shouldn’t estimate', () => {
+    const noEstimateGen = gen.clone();
+    expect(noEstimateGen.next(nonEstimateNetwork).value).toEqual(
+      call(setDefaultEstimates, nonEstimateNetwork)
+    );
+    expect(noEstimateGen.next().done).toBeTruthy();
+  });
+
+  it('Should select getOffline', () => {
+    expect(gen.next(network).value).toEqual(select(getOffline));
+  });
+
+  it('Should use network default gas price settings if offline', () => {
     const offlineGen = gen.clone();
-    expect(offlineGen.next(true).value).toEqual(call(setDefaultEstimates));
+    expect(offlineGen.next(true).value).toEqual(call(setDefaultEstimates, network));
     expect(offlineGen.next().done).toBeTruthy();
   });
 
@@ -59,32 +82,67 @@ describe('fetchEstimates*', () => {
     const failedReqGen = gen.clone();
     // Not sure why, but typescript seems to think throw might be missing.
     if (failedReqGen.throw) {
-      expect(failedReqGen.throw('test').value).toEqual(call(setDefaultEstimates));
+      expect(failedReqGen.throw('test').value).toEqual(call(setDefaultEstimates, network));
       expect(failedReqGen.next().done).toBeTruthy();
     } else {
       throw new Error('SagaIterator didn’t have throw');
     }
   });
 
+  it('Should use new estimates if chainId changed, even if time is similar', () => {
+    const newChainGen = gen.clone();
+    expect(newChainGen.next(newChainIdEstimates).value).toEqual(
+      put(setGasEstimates(newChainIdEstimates))
+    );
+    expect(newChainGen.next().done).toBeTruthy();
+  });
+
   it('Should use fetched estimates', () => {
-    expect(gen.next(newEstimates).value).toEqual(put(setGasEstimates(newEstimates)));
+    expect(gen.next(newTimeEstimates).value).toEqual(put(setGasEstimates(newTimeEstimates)));
     expect(gen.next().done).toBeTruthy();
   });
 });
 
 describe('setDefaultEstimates*', () => {
-  const gen = cloneableGenerator(setDefaultEstimates)();
+  const time = Date.now();
 
   it('Should put setGasEstimates with config defaults', () => {
-    const time = Date.now();
+    const gen = setDefaultEstimates(network);
     gen.next();
     expect(gen.next(time).value).toEqual(
       put(
         setGasEstimates({
-          safeLow: gasPriceDefaults.minGwei,
-          standard: gasPriceDefaults.default,
-          fast: gasPriceDefaults.default,
-          fastest: gasPriceDefaults.maxGwei,
+          safeLow: network.gasPriceSettings.min,
+          standard: network.gasPriceSettings.initial,
+          fast: network.gasPriceSettings.initial,
+          fastest: network.gasPriceSettings.max,
+          chainId: network.chainId,
+          isDefault: true,
+          time
+        })
+      )
+    );
+  });
+
+  it('Should use config defaults if network has no defaults', () => {
+    const customNetwork = {
+      isCustom: true as true,
+      name: 'Custon',
+      unit: 'CST',
+      chainId: 123,
+      dPathFormats: null
+    };
+    const gen = setDefaultEstimates(customNetwork);
+
+    gen.next();
+    expect(gen.next(time).value).toEqual(
+      put(
+        setGasEstimates({
+          safeLow: gasPriceDefaults.min,
+          standard: gasPriceDefaults.initial,
+          fast: gasPriceDefaults.initial,
+          fastest: gasPriceDefaults.max,
+          chainId: customNetwork.chainId,
           isDefault: true,
           time
         })