Decision coverage only cares about the value of the judgment expression (true/false), while conditional coverage involves the value of each condition of the judgment expression (true/false).
Give the simplest example for easy understanding: (Recommended learning: PHP video tutorial)
Judgment expression: a>1 or b>1
Use judgment to cover the designed test data:
a＝5 (Judgment expression The value of the expression is "true")
a＝0 (The value of the expression is determined to be "false")
There is no need to control the value of b here, just The conditions for determining coverage have been met.
Cover the designed test data with conditions:
a＝5 (the value of condition a>1 is "true")
a＝0 (The value of condition a>1 is "false")
b＝5 (The value of condition b>1 is "true")
b＝0 (The value of condition b>1 is "false")
The value of the expression a>1 or b>1 is not considered here, but it must be The values of the two conditions a>1 and b>1 are considered.
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