diff --git a/package.json b/package.json
index 885062b0..ecdcac7f 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "build": "react-scripts build",
     "build:testing": "env-cmd -f .env.testing npm run build",
     "start": "ESLINT_NO_DEV_ERRORS=true react-scripts start",
-    "test": "react-scripts test --env=jsdom",
+    "test": "TZ='GMT+0200' react-scripts test --env=jsdom",
     "eject": "react-scripts eject",
     "lint": "eslint .",
     "lint:fix": "eslint --fix .",
diff --git a/src/__tests__/utils/date.spec.js b/src/__tests__/utils/date.spec.js
new file mode 100644
index 00000000..c33f6de0
--- /dev/null
+++ b/src/__tests__/utils/date.spec.js
@@ -0,0 +1,13 @@
+import {get24Time, getDate} from '../../utils';
+
+describe('getDate', () => {
+  it('should get date', () => {
+    expect(getDate(1644828892412)).toEqual('14/02/2022');
+  });
+});
+
+describe('get24Time', () => {
+  it('should get 24 time', () => {
+    expect(get24Time(1644828892412).endsWith(':54:52')).toBeTruthy();
+  });
+});
diff --git a/src/__tests__/utils/hash.spec.js b/src/__tests__/utils/hash.spec.js
index 880f804c..af417a88 100644
--- a/src/__tests__/utils/hash.spec.js
+++ b/src/__tests__/utils/hash.spec.js
@@ -1,34 +1,39 @@
 import {ChainType, TransactionHashPrefix} from '../../enums';
 import {hashEquals, txHash} from '../../utils';
 
-it('should calc tx hash', () => {
-  const from_address = '0xcf98f0a8edc6a730e1ca6b64a2528c6be031cb12';
-  const to_address = '1384622289134235426972866085149619554404298343372540338336104355150443775597';
-  const selector = '1285101517810983806491589552491143496277809242732141897358598292095611420389';
-  const nonce = '55';
-  const payload = [
-    '17466514784613283928575916580398045172482824287888203092305238190565527099',
-    '52145000000000',
-    '0'
-  ];
+describe('txHash', () => {
+  it('should calc tx hash', () => {
+    const from_address = '0xcf98f0a8edc6a730e1ca6b64a2528c6be031cb12';
+    const to_address =
+      '1384622289134235426972866085149619554404298343372540338336104355150443775597';
+    const selector = '1285101517810983806491589552491143496277809242732141897358598292095611420389';
+    const nonce = '55';
+    const payload = [
+      '17466514784613283928575916580398045172482824287888203092305238190565527099',
+      '52145000000000',
+      '0'
+    ];
 
-  expect(
-    txHash(
-      TransactionHashPrefix.L1_HANDLER,
-      from_address,
-      to_address,
-      selector,
-      payload,
-      ChainType.GOERLI.id,
-      nonce
-    )
-  ).toEqual('0x35ab0e4de971ac0736844ef36a05796dc41490c165373923c423f4b995983e8');
+    expect(
+      txHash(
+        TransactionHashPrefix.L1_HANDLER,
+        from_address,
+        to_address,
+        selector,
+        payload,
+        ChainType.GOERLI.id,
+        nonce
+      )
+    ).toEqual('0x35ab0e4de971ac0736844ef36a05796dc41490c165373923c423f4b995983e8');
+  });
 });
 
-it('should compare hashes', () => {
-  expect(hashEquals([1, 2])).toBeTruthy();
-  expect(hashEquals([1, 2, 3], [1, 2, 3])).toBeTruthy();
-  expect(hashEquals([1, 2, 3], [1, 2, 3], [1, 2, 3])).toBeTruthy();
-  expect(hashEquals([1, 2, 3], [1, 2, 3], [1])).toBeFalsy();
-  expect(hashEquals([1, 2, 3], [1, 2])).toBeFalsy();
+describe('hashEquals', () => {
+  it('should compare hashes', () => {
+    expect(hashEquals([1, 2])).toBeTruthy();
+    expect(hashEquals([1, 2, 3], [1, 2, 3])).toBeTruthy();
+    expect(hashEquals([1, 2, 3], [1, 2, 3], [1, 2, 3])).toBeTruthy();
+    expect(hashEquals([1, 2, 3], [1, 2, 3], [1])).toBeFalsy();
+    expect(hashEquals([1, 2, 3], [1, 2])).toBeFalsy();
+  });
 });
diff --git a/src/__tests__/utils/number.spec.js b/src/__tests__/utils/number.spec.js
new file mode 100644
index 00000000..1f2c1f28
--- /dev/null
+++ b/src/__tests__/utils/number.spec.js
@@ -0,0 +1,93 @@
+import {
+  parseFromDecimals,
+  parseFromFelt,
+  parseFromUint256,
+  parseToDecimals,
+  parseToUint256,
+  UNIT_MAP
+} from '../../utils';
+
+describe('UNIT_MAP', () => {
+  it('should init unit map', () => {
+    expect(UNIT_MAP).toEqual({
+      0: 'noether',
+      1: 'wei',
+      1000: 'femtoether',
+      1000000: 'picoether',
+      1000000000: 'nano',
+      1000000000000: 'micro',
+      1000000000000000: 'milli',
+      1000000000000000000: 'ether',
+      '1000000000000000000000': 'grand',
+      '1000000000000000000000000': 'mether',
+      '1000000000000000000000000000': 'gether',
+      '1000000000000000000000000000000': 'tether'
+    });
+  });
+
+  describe('parseToDecimals', () => {
+    it('should parse to decimals', () => {
+      expect(parseToDecimals('1')).toEqual('1000000000000000000');
+      expect(parseToDecimals('1', 3)).toEqual('1000');
+      expect(parseToDecimals('1', 6)).toEqual('1000000');
+      expect(parseToDecimals('1', 9)).toEqual('1000000000');
+      expect(parseToDecimals('1', 12)).toEqual('1000000000000');
+      expect(parseToDecimals('1', 15)).toEqual('1000000000000000');
+      expect(parseToDecimals('1', 18)).toEqual('1000000000000000000');
+    });
+  });
+
+  describe('parseFromDecimals', () => {
+    it('should parse from decimals', () => {
+      expect(parseFromDecimals('1000000000000000000')).toEqual(1);
+      expect(parseFromDecimals('1000000000000000000', 3)).toEqual(1000000000000000);
+      expect(parseFromDecimals('1000000000000000000', 6)).toEqual(1000000000000);
+      expect(parseFromDecimals('1000000000000000000', 9)).toEqual(1000000000);
+      expect(parseFromDecimals('1000000000000000000', 12)).toEqual(1000000);
+      expect(parseFromDecimals('1000000000000000000', 15)).toEqual(1000);
+      expect(parseFromDecimals('1000000000000000000', 18)).toEqual(1);
+    });
+  });
+
+  describe('parseFromFelt', () => {
+    it('should parse from felt', () => {
+      expect(parseFromFelt('0x1')).toEqual(1);
+      expect(parseFromFelt('0x10')).toEqual(16);
+      expect(parseFromFelt('0x100')).toEqual(256);
+    });
+  });
+
+  describe('parseToUint256', () => {
+    it('should parse to uint256', () => {
+      expect(parseToUint256('100')).toEqual({
+        high: '0x0',
+        low: '0x56bc75e2d63100000',
+        type: 'struct'
+      });
+      expect(parseToUint256('10000')).toEqual({
+        high: '0x0',
+        low: '0x21e19e0c9bab2400000',
+        type: 'struct'
+      });
+      expect(parseToUint256('10000000')).toEqual({
+        high: '0x0',
+        low: '0x84595161401484a000000',
+        type: 'struct'
+      });
+    });
+  });
+
+  describe('parseFromUint256', () => {
+    it('should parse from uint256', () => {
+      expect(parseFromUint256({high: '0x0', low: '0x56bc75e2d63100000', type: 'struct'})).toEqual(
+        100
+      );
+      expect(parseFromUint256({high: '0x0', low: '0x21e19e0c9bab2400000', type: 'struct'})).toEqual(
+        10000
+      );
+      expect(
+        parseFromUint256({high: '0x0', low: '0x84595161401484a000000', type: 'struct'})
+      ).toEqual(10000000);
+    });
+  });
+});
diff --git a/src/__tests__/utils/object.spec.js b/src/__tests__/utils/object.spec.js
index 431e61b2..2611e903 100644
--- a/src/__tests__/utils/object.spec.js
+++ b/src/__tests__/utils/object.spec.js
@@ -1,4 +1,39 @@
-import {findIndexById} from '../../utils';
+import {evaluate, findIndexById, getPropertyPath, toClasses} from '../../utils';
+
+describe('getPropertyPath', () => {
+  const obj = {
+    a: 1,
+    b: 'hello',
+    c: {
+      d: true
+    }
+  };
+  it('should get property by path', () => {
+    expect(getPropertyPath(obj, 'a')).toEqual(1);
+    expect(getPropertyPath(obj, 'b')).toEqual('hello');
+    expect(getPropertyPath(obj, 'c')).toEqual({
+      d: true
+    });
+    expect(getPropertyPath(obj, 'c.d')).toBeTruthy();
+  });
+});
+
+describe('toClasses', () => {
+  it('should transform array to seperated string', () => {
+    expect(toClasses('c1', 'c2')).toEqual('c1 c2');
+  });
+});
+
+describe('evaluate', () => {
+  it('should evaluate handlebars in template', () => {
+    expect(evaluate('Hello {{name}}! this is my message', {name: 'foo'})).toEqual(
+      'Hello foo! this is my message'
+    );
+    expect(evaluate('{{host}}:{{port}}', {host: 'localhost', port: '8080'})).toEqual(
+      'localhost:8080'
+    );
+  });
+});
 
 describe('findIndexById', () => {
   it("should return the matching-object's index (Number), accourding it's 'id'.", () => {
diff --git a/src/__tests__/utils/string.spec.js b/src/__tests__/utils/string.spec.js
new file mode 100644
index 00000000..ce74fb5e
--- /dev/null
+++ b/src/__tests__/utils/string.spec.js
@@ -0,0 +1,8 @@
+import {capitalize} from '../../utils';
+
+describe('capitalize', () => {
+  it('should capitalize string', () => {
+    expect(capitalize('hello')).toEqual('Hello');
+    expect(capitalize('some message')).toEqual('Some message');
+  });
+});
diff --git a/src/__tests__/utils/token.spec.js b/src/__tests__/utils/token.spec.js
new file mode 100644
index 00000000..f7470b0b
--- /dev/null
+++ b/src/__tests__/utils/token.spec.js
@@ -0,0 +1,19 @@
+import {isEth} from '../../utils';
+
+describe('isEth', () => {
+  it('should return true for eth symbol as string', () => {
+    expect(isEth('ETH')).toBeTruthy();
+  });
+
+  it('should return true for eth token as object', () => {
+    expect(isEth({symbol: 'ETH'})).toBeTruthy();
+  });
+
+  it('should return false for non-eth symbol as string', () => {
+    expect(isEth('DAI')).toBeFalsy();
+  });
+
+  it('should return false for non-eth token as object', () => {
+    expect(isEth({symbol: 'DAI'})).toBeFalsy();
+  });
+});
diff --git a/src/__tests__/utils/wallet.spec.js b/src/__tests__/utils/wallet.spec.js
new file mode 100644
index 00000000..148116f8
--- /dev/null
+++ b/src/__tests__/utils/wallet.spec.js
@@ -0,0 +1,31 @@
+import {formatBalance, shortenAddress} from '../../utils';
+
+describe('formatBalance', () => {
+  it('should format balance to 5 digits precision', () => {
+    expect(formatBalance(1.222243232)).toEqual(1.22224);
+    expect(formatBalance(3000.232143123212)).toEqual(3000.23214);
+    expect(formatBalance(10.000000001)).toEqual(10);
+  });
+
+  it('should return N/A for non-numbers', () => {
+    expect(formatBalance('')).toBe('N/A');
+    expect(formatBalance(null)).toBe('N/A');
+    expect(formatBalance()).toBe('N/A');
+  });
+});
+
+describe('shortenAddress', () => {
+  it('should shorten long address', () => {
+    expect(shortenAddress('0x9e2bd0a6b6b98f4586a867678f5ebd3dcfda02e7')).toEqual('0x9e2...2e7');
+  });
+
+  it('should return the same address for short address', () => {
+    expect(shortenAddress('0x9ed0a')).toEqual('0x9ed0a');
+  });
+
+  it('should return empty string for bad input', () => {
+    expect(shortenAddress('')).toBe('');
+    expect(shortenAddress()).toBe('');
+    expect(shortenAddress(null)).toBe('');
+  });
+});
diff --git a/src/utils/number.js b/src/utils/number.js
index c8012581..7061ae51 100644
--- a/src/utils/number.js
+++ b/src/utils/number.js
@@ -2,7 +2,7 @@ import {web3, starknet} from '../libs';
 
 const TEN = 10;
 const DEFAULT_DECIMALS = 18;
-const UNIT_MAP = {};
+export const UNIT_MAP = {};
 
 for (let key in web3.utils.unitMap) {
   UNIT_MAP[web3.utils.unitMap[key]] = key;
diff --git a/src/utils/wallet.js b/src/utils/wallet.js
index 88f8b9ae..48d6a695 100644
--- a/src/utils/wallet.js
+++ b/src/utils/wallet.js
@@ -2,8 +2,10 @@ export const formatBalance = balance =>
   typeof balance === 'number' ? parseFloat(balance.toFixed(5)) : 'N/A';
 
 export const shortenAddress = account => {
-  if (account) {
-    return `${account.substring(0, 5)}...${account.substring(account.length - 3)}`;
+  if (!account) {
+    return '';
   }
-  return '';
+  return account.length <= 8
+    ? account
+    : `${account.substring(0, 5)}...${account.substring(account.length - 3)}`;
 };