> For the complete documentation index, see [llms.txt](https://docs.alkemi.network/earn-contracts/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.alkemi.network/earn-contracts/docs/testtokens.md).

# TestTokens.sol

View Source: [contracts/TestTokens.sol](https://github.com/AlkemiNetwork/alkemi-earn-contracts/tree/ae6d5c01ff8b3810c4005457ac7ce441ab1c7ec5/contracts/TestTokens.sol)

### Contract Members

**Constants & Variables**

```javascript
string public name;
string public symbol;
uint8 public decimals;
uint256 public supply;
mapping(address => uint256) public balances;
mapping(address => mapping(address => uint256)) public allowed;
```

**Events**

```javascript
event Transfer(address  sender, address  receiver, uint256  tokens);
event Approval(address  sender, address  delegate, uint256  tokens);
```

### Functions

* totalSupply()
* balanceOf(address tokenOwner)
* transfer(address receiver, uint256 numTokens)
* approve(address delegate, uint256 numTokens)
* allowance(address owner, address delegate)
* transferFrom(address owner, address buyer, uint256 numTokens)
* allocateTo(address \_owner, uint256 value)

#### totalSupply

```javascript
function totalSupply() external view
returns(uint256)
```

**Arguments**

| Name | Type | Description |
| ---- | ---- | ----------- |

#### balanceOf

```javascript
function balanceOf(address tokenOwner) external view
returns(uint256)
```

**Arguments**

| Name       | Type    | Description |
| ---------- | ------- | ----------- |
| tokenOwner | address |             |

#### transfer

```javascript
function transfer(address receiver, uint256 numTokens) external nonpayable
returns(bool)
```

**Arguments**

| Name      | Type    | Description |
| --------- | ------- | ----------- |
| receiver  | address |             |
| numTokens | uint256 |             |

#### approve

```javascript
function approve(address delegate, uint256 numTokens) external nonpayable
returns(bool)
```

**Arguments**

| Name      | Type    | Description |
| --------- | ------- | ----------- |
| delegate  | address |             |
| numTokens | uint256 |             |

#### allowance

```javascript
function allowance(address owner, address delegate) external view
returns(uint256)
```

**Arguments**

| Name     | Type    | Description |
| -------- | ------- | ----------- |
| owner    | address |             |
| delegate | address |             |

#### transferFrom

```javascript
function transferFrom(address owner, address buyer, uint256 numTokens) external nonpayable
returns(bool)
```

**Arguments**

| Name      | Type    | Description |
| --------- | ------- | ----------- |
| owner     | address |             |
| buyer     | address |             |
| numTokens | uint256 |             |

#### allocateTo

```javascript
function allocateTo(address _owner, uint256 value) public nonpayable
```

**Arguments**

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| \_owner | address |             |
| value   | uint256 |             |