**Condition coverage testing** is a type of white-box testing that tests all the conditional expressions in a program for all possible outcomes of the conditions. It is also called *predicate coverage*.
>Note: Condition coverage testing tests the conditions independently of each other.

# Condition coverage vs. branch coverage
In *branch coverage*, all conditions must be executed at least once. On the other hand, in *condition coverage*, all possible outcomes of all conditions must be tested at least once. 

For example, consider the code snippet below:

int a = 10;
if (a > 0){
  cout<<"a is positive";
}

* *Branch coverage* requires that the condition `a > 0` is executed at least once.
* *Condition coverage* requires that both the outcomes `a > 0 = True` and `a > 0 = False` of the condition `a > 0` are executed at least once.

# Examples
## Example 1
Consider the code snippet below, which will be used to conduct *condition coverage testing*:

int num1 = 0;
if(num1>0){
    cout<<"valid input";
}else{
    cout<<"invalid input";
}

## Condition coverage testing
The condition coverage testing of the code above will be as follows:

## Example 2
Consider the code snippet below, which will be used to conduct *condition coverage testing*:

int num1 = 0;
int num2 = 0;
if((num1>0 || num2<10)){
    cout<<"valid input";
}else{
    cout<<"invalid input";
}

## Example 3
Consider the code snippet below, which will be used to conduct *condition coverage testing*:

int num1 = 0;
int num2 = 0;
if((num1>0) && (num1+num2<15)){
    cout<<"valid input";
}else{
    cout<<"invalid input";
}

## Example 4
Consider the code snippet below, which will be used to conduct *condition coverage testing*:

int num1 = 0;
int num2 = 0;
if((num1>0 || num2<10) && (num1+num2<15)){
    cout<<"valid input";
}else{
    cout<<"invalid input";
}

What is condition coverage testing?

Condition coverage testing ensures all possible outcomes of conditional expressions are tested independently.

Test case number	num1>0	num2<10	Final output
1	True	Not required	True
2	False	True	True
3	False	False	False

Test case number	num1>0	num1+num2<15	Final output
1	True	True	True
2	True	False	False
3	False	Not required	False