struct

Spectator::Matchers::ChangeMatcher(ExpressionType)

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

Matcher that tests whether an expression changed.

Constructors

new(expression : Block(ExpressionType))

Creates a new change matcher.

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Instance methods

by(amount)

Specifies that t he resulting value must be some amount different.

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by_at_least(minimum)

Specifies that the resulting value must be at least some amount different.

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by_at_most(maximum)

Specifies that the resulting value must be at most some amount different.

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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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from(value)

Specifies what the initial value of the expression must be.

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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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