struct

Spectator::Matchers::ChangeFromMatcher(ExpressionType, FromType)

Inherits Spectator::Matchers::Matcher / Struct / Value / Object

Matcher that tests whether an expression changed from a specific value.

Constructors

new(expression : Block(ExpressionType), expected : FromType)

Creates a new change matcher.

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Instance methods

by(amount)

Specifies what the resulting value of the expression should change by.

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description

Short text about the matcher's purpose. This explains what condition satisfies the matcher. The description is used when the one-liner syntax is used.

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match(actual : Expression(T)) : MatchData forall T

Actually performs the test against the expression.

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negated_match(actual : Expression(T)) : MatchData forall T

Performs the test against the expression, but inverted. A successful match with #match should normally fail for this method, and vice-versa.

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to(value)

Specifies what the resulting value of the expression must be.

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