mirror of
https://gitea.invidious.io/iv-org/shard-spectator.git
synced 2024-08-15 00:53:35 +00:00
Refactor existing change matchers to use new format
This commit is contained in:
parent
db1118dac1
commit
214b2e171e
4 changed files with 153 additions and 216 deletions
|
@ -535,7 +535,8 @@ module Spectator::DSL
|
|||
# expect { i += 42 }.to change { i }.by(42)
|
||||
# ```
|
||||
macro change(&expression)
|
||||
::Spectator::Matchers::ChangeMatcher.new("`" + {{expression.body.stringify}} + "`") {{expression}}
|
||||
%proc = ->({{expression.args.splat}}) {{expression}}
|
||||
::Spectator::Matchers::ChangeMatcher.new(::Spectator::TestBlock.new(%proc, "`" + {{expression.body.stringify}} + "`"))
|
||||
end
|
||||
|
||||
# Indicates that some block should raise an error.
|
||||
|
|
|
@ -3,100 +3,74 @@ require "./value_matcher"
|
|||
module Spectator::Matchers
|
||||
# Matcher that tests whether an expression changed from a specific value.
|
||||
struct ChangeFromMatcher(ExpressionType, FromType) < Matcher
|
||||
# Textual representation of what the matcher expects.
|
||||
# This shouldn't be used in the conditional logic,
|
||||
# but for verbose output to help the end-user.
|
||||
getter label : String
|
||||
# The expression that is expected to (not) change.
|
||||
private getter expression
|
||||
|
||||
# Determines whether the matcher is satisfied with the partial given to it.
|
||||
# `MatchData` is returned that contains information about the match.
|
||||
def match(partial)
|
||||
before = @expression.call # Retrieve the expression's initial value.
|
||||
partial.actual # Invoke action that might change the expression's value.
|
||||
after = @expression.call # Retrieve the expression's value again.
|
||||
if @expected_before != before
|
||||
# Initial value isn't what was expected.
|
||||
InitialMatchData.new(@expected_before, before, after, partial.label, label)
|
||||
else
|
||||
# Check if the expression's value changed.
|
||||
same = before == after
|
||||
ChangeMatchData.new(!same, @expected_before, before, after, partial.label, label)
|
||||
end
|
||||
end
|
||||
|
||||
# Creates a new change matcher with a custom label.
|
||||
def initialize(@label, @expected_before : FromType, &expression : -> ExpressionType)
|
||||
@expression = expression
|
||||
end
|
||||
# The expected value of the expression before the change.
|
||||
private getter expected
|
||||
|
||||
# Creates a new change matcher.
|
||||
def initialize(@expected_before : FromType, &expression : -> ExpressionType)
|
||||
@label = expression.to_s
|
||||
@expression = expression
|
||||
def initialize(@expression : TestBlock(ExpressionType), @expected : FromType)
|
||||
end
|
||||
|
||||
# Match data for when the initial value isn't the expected value.
|
||||
private struct InitialMatchData(ExpressionType, FromType) < MatchData
|
||||
# Creates the match data.
|
||||
def initialize(@expected_before : FromType, @actual_before : ExpressionType, @after : ExpressionType,
|
||||
@action_label : String, @expression_label : String)
|
||||
super(false)
|
||||
end
|
||||
# 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.
|
||||
def description
|
||||
"changes #{expression.label} from #{expected}"
|
||||
end
|
||||
|
||||
# Do not allow negation of this match data.
|
||||
def override?
|
||||
true
|
||||
end
|
||||
|
||||
# Information about the match.
|
||||
def named_tuple
|
||||
{
|
||||
"expected before": @expected_before,
|
||||
"actual before": @actual_before,
|
||||
"expected after": NegatableMatchDataValue.new(@expected_before, true),
|
||||
"actual after": @after,
|
||||
}
|
||||
end
|
||||
|
||||
# This is informational and displayed to the end-user.
|
||||
def message
|
||||
"#{@expression_label} is initially #{@expected_before}"
|
||||
end
|
||||
|
||||
# This is informational and displayed to the end-user.
|
||||
def negated_message
|
||||
"#{@expression_label} is not initially #{@expected_before}"
|
||||
# Actually performs the test against the expression.
|
||||
def match(actual : TestExpression(T)) : MatchData forall T
|
||||
before, after = change(actual)
|
||||
if before != expected
|
||||
FailedMatchData.new("#{expression.label} was not initially #{expected}",
|
||||
expected: expected.inspect,
|
||||
actual: before.inspect,
|
||||
)
|
||||
elsif before == after
|
||||
FailedMatchData.new("#{actual.label} did not change #{expression.label} from #{expected}",
|
||||
before: before.inspect,
|
||||
after: after.inspect,
|
||||
expected: "Not #{expected.inspect}"
|
||||
)
|
||||
else
|
||||
SuccessfulMatchData.new
|
||||
end
|
||||
end
|
||||
|
||||
private struct ChangeMatchData(ExpressionType, FromType) < MatchData
|
||||
# Creates the match data.
|
||||
def initialize(matched, @expected_before : FromType, @actual_before : ExpressionType,
|
||||
@after : ExpressionType, @action_label : String, @expression_label : String)
|
||||
super(matched)
|
||||
# Performs the test against the expression, but inverted.
|
||||
# A successful match with `#match` should normally fail for this method, and vice-versa.
|
||||
def negated_match(actual : TestExpression(T)) : MatchData forall T
|
||||
before, after = change(actual)
|
||||
if before != expected
|
||||
FailedMatchData.new("#{expression.label} was not initially #{expected}",
|
||||
expected: expected.inspect,
|
||||
actual: before.inspect
|
||||
)
|
||||
elsif before == after
|
||||
SuccessfulMatchData.new
|
||||
else
|
||||
FailedMatchData.new("#{actual.label} changed #{expression.label} from #{expected}",
|
||||
before: before.inspect,
|
||||
after: after.inspect,
|
||||
expected: expected.inspect
|
||||
)
|
||||
end
|
||||
end
|
||||
|
||||
# Information about the match.
|
||||
def named_tuple
|
||||
{
|
||||
"expected before": @expected_before,
|
||||
"actual before": @actual_before,
|
||||
"expected after": NegatableMatchDataValue.new(@expected_before, true),
|
||||
"actual after": @after,
|
||||
}
|
||||
end
|
||||
# Specifies what the resulting value of the expression must be.
|
||||
def to(value : T) forall T
|
||||
raise NotImplementedError.new("ChangeFromMatcher#to")
|
||||
end
|
||||
|
||||
# Describes the condition that satisfies the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def message
|
||||
"#{@action_label} changed #{@expression_label} from #{@expected_before}"
|
||||
end
|
||||
# Performs the change and reports the before and after values.
|
||||
private def change(actual)
|
||||
before = expression.value # Retrieve the expression's initial value.
|
||||
actual.value # Invoke action that might change the expression's value.
|
||||
after = expression.value # Retrieve the expression's value again.
|
||||
|
||||
# Describes the condition that won't satsify the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def negated_message
|
||||
"#{@action_label} did not change #{@expression_label} from #{@expected_before}"
|
||||
end
|
||||
{before, after}
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
@ -1,73 +1,67 @@
|
|||
require "./change_from_matcher"
|
||||
require "./change_to_matcher"
|
||||
require "./matcher"
|
||||
require "./standard_matcher"
|
||||
|
||||
module Spectator::Matchers
|
||||
# Matcher that tests whether an expression changed.
|
||||
struct ChangeMatcher(ExpressionType) < Matcher
|
||||
# Textual representation of what the matcher expects.
|
||||
# This shouldn't be used in the conditional logic,
|
||||
# but for verbose output to help the end-user.
|
||||
getter label : String
|
||||
|
||||
# Determines whether the matcher is satisfied with the partial given to it.
|
||||
# `MatchData` is returned that contains information about the match.
|
||||
def match(partial)
|
||||
before = @expression.call # Retrieve the expression's initial value.
|
||||
partial.actual # Invoke action that might change the expression's value.
|
||||
after = @expression.call # Retrieve the expression's value again.
|
||||
same = before == after # Did the value change?
|
||||
MatchData.new(!same, before, after, partial.label, label)
|
||||
end
|
||||
|
||||
# Creates a new change matcher with a custom label.
|
||||
def initialize(@label, &expression : -> ExpressionType)
|
||||
@expression = expression
|
||||
end
|
||||
private getter expression
|
||||
|
||||
# Creates a new change matcher.
|
||||
def initialize(&expression : -> ExpressionType)
|
||||
@label = expression.to_s
|
||||
@expression = expression
|
||||
def initialize(@expression : TestBlock(ExpressionType))
|
||||
end
|
||||
|
||||
# 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.
|
||||
def description
|
||||
"changes #{expression.label}"
|
||||
end
|
||||
|
||||
# Actually performs the test against the expression.
|
||||
def match(actual : TestExpression(T)) : MatchData forall T
|
||||
before, after = change(actual)
|
||||
if before == after
|
||||
FailedMatchData.new("#{actual.label} did not change #{expression.label}",
|
||||
before: before.inspect,
|
||||
after: after.inspect
|
||||
)
|
||||
else
|
||||
SuccessfulMatchData.new
|
||||
end
|
||||
end
|
||||
|
||||
# Performs the test against the expression, but inverted.
|
||||
# A successful match with `#match` should normally fail for this method, and vice-versa.
|
||||
def negated_match(actual : TestExpression(T)) : MatchData forall T
|
||||
before, after = change(actual)
|
||||
if before == after
|
||||
SuccessfulMatchData.new
|
||||
else
|
||||
FailedMatchData.new("#{actual.label} changed #{expression.label}",
|
||||
before: before.inspect,
|
||||
after: after.inspect
|
||||
)
|
||||
end
|
||||
end
|
||||
|
||||
# Specifies what the initial value of the expression must be.
|
||||
def from(value : T) forall T
|
||||
ChangeFromMatcher.new(label, value, &@expression)
|
||||
ChangeFromMatcher.new(@expression, value)
|
||||
end
|
||||
|
||||
# Specifies what the resulting value of the expression must be.
|
||||
def to(value : T) forall T
|
||||
ChangeToMatcher.new(label, value, &@expression)
|
||||
ChangeToMatcher.new(@expression, value)
|
||||
end
|
||||
|
||||
# Match data specific to this matcher.
|
||||
private struct MatchData(ExpressionType) < MatchData
|
||||
# Creates the match data.
|
||||
def initialize(matched, @before : ExpressionType, @after : ExpressionType,
|
||||
@action_label : String, @expression_label : String)
|
||||
super(matched)
|
||||
end
|
||||
# Performs the change and reports the before and after values.
|
||||
private def change(actual)
|
||||
before = expression.value # Retrieve the expression's initial value.
|
||||
actual.value # Invoke action that might change the expression's value.
|
||||
after = expression.value # Retrieve the expression's value again.
|
||||
|
||||
# Information about the match.
|
||||
def named_tuple
|
||||
{
|
||||
before: @before,
|
||||
after: @after,
|
||||
}
|
||||
end
|
||||
|
||||
# Describes the condition that satisfies the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def message
|
||||
"#{@action_label} changes #{@expression_label}"
|
||||
end
|
||||
|
||||
# Describes the condition that won't satsify the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def negated_message
|
||||
"#{@action_label} does not change #{@expression_label}"
|
||||
end
|
||||
{before, after}
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
@ -1,102 +1,70 @@
|
|||
require "./value_matcher"
|
||||
require "./change_matcher"
|
||||
|
||||
module Spectator::Matchers
|
||||
# Matcher that tests whether an expression changed to a specific value.
|
||||
struct ChangeToMatcher(ExpressionType, ToType) < Matcher
|
||||
# Textual representation of what the matcher expects.
|
||||
# This shouldn't be used in the conditional logic,
|
||||
# but for verbose output to help the end-user.
|
||||
getter label : String
|
||||
# The expression that is expected to (not) change.
|
||||
private getter expression
|
||||
|
||||
# Determines whether the matcher is satisfied with the partial given to it.
|
||||
# `MatchData` is returned that contains information about the match.
|
||||
def match(partial)
|
||||
before = @expression.call # Retrieve the expression's initial value.
|
||||
partial.actual # Invoke action that might change the expression's value.
|
||||
after = @expression.call # Retrieve the expression's value again.
|
||||
if @expected_after != after
|
||||
# Resulting value isn't what was expected.
|
||||
ResultingMatchData.new(before, @expected_after, after, partial.label, label)
|
||||
else
|
||||
# Check if the expression's value changed.
|
||||
same = before == after
|
||||
ChangeMatchData.new(!same, before, @expected_after, after, partial.label, label)
|
||||
end
|
||||
end
|
||||
|
||||
# Creates a new change matcher with a custom label.
|
||||
def initialize(@label, @expected_after : ToType, &expression : -> ExpressionType)
|
||||
@expression = expression
|
||||
end
|
||||
# The expected value of the expression after the change.
|
||||
private getter expected
|
||||
|
||||
# Creates a new change matcher.
|
||||
def initialize(@expected_after : ToType, &expression : -> ExpressionType)
|
||||
@label = expression.to_s
|
||||
@expression = expression
|
||||
def initialize(@expression : TestBlock(ExpressionType), @expected : ToType)
|
||||
end
|
||||
|
||||
# Match data for when the resulting value isn't the expected value.
|
||||
private struct ResultingMatchData(ExpressionType, ToType) < MatchData
|
||||
# Creates the match data.
|
||||
def initialize(@before : ExpressionType, @expected_after : ToType, @actual_after : ExpressionType,
|
||||
@action_label : String, @expression_label : String)
|
||||
super(false)
|
||||
end
|
||||
# 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.
|
||||
def description
|
||||
"changes #{expression.label} to #{expected}"
|
||||
end
|
||||
|
||||
# Do not allow negation of this match data.
|
||||
def override?
|
||||
true
|
||||
end
|
||||
|
||||
# Information about the match.
|
||||
def named_tuple
|
||||
{
|
||||
"expected before": NegatableMatchDataValue.new(@expected_after, true),
|
||||
"actual before": @before,
|
||||
"expected after": @expected_after,
|
||||
"actual after": @actual_after,
|
||||
}
|
||||
end
|
||||
|
||||
# This is informational and displayed to the end-user.
|
||||
def message
|
||||
"#{@expression_label} changes to #{@expected_after}"
|
||||
end
|
||||
|
||||
# This is informational and displayed to the end-user.
|
||||
def negated_message
|
||||
"#{@expression_label} did not change to #{@expected_after}"
|
||||
# Actually performs the test against the expression.
|
||||
def match(actual : TestExpression(T)) : MatchData forall T
|
||||
before, after = change(actual)
|
||||
if before == after
|
||||
FailedMatchData.new("#{actual.label} did not change #{expression.label}",
|
||||
before: before.inspect,
|
||||
after: after.inspect,
|
||||
expected: expected.inspect
|
||||
)
|
||||
elsif expected == after
|
||||
SuccessfulMatchData.new
|
||||
else
|
||||
FailedMatchData.new("#{actual.label} did not change #{expression.label} to #{expected}",
|
||||
before: before.inspect,
|
||||
after: after.inspect,
|
||||
expected: expected.inspect
|
||||
)
|
||||
end
|
||||
end
|
||||
|
||||
private struct ChangeMatchData(ExpressionType, ToType) < MatchData
|
||||
# Creates the match data.
|
||||
def initialize(matched, @before : ToType, @expected_after : ToType, @actual_after : ExpressionType,
|
||||
@action_label : String, @expression_label : String)
|
||||
super(matched)
|
||||
end
|
||||
# Negated matching for this matcher is not supported.
|
||||
# Attempting to call this method will result in a compilation error.
|
||||
#
|
||||
# This syntax has a logical problem.
|
||||
# "The action does not change the expression to some value."
|
||||
# Is it a failure if the value is not changed,
|
||||
# but it is the expected value?
|
||||
#
|
||||
# RSpec doesn't support this syntax either.
|
||||
def negated_match(actual : TestExpression(T)) : MatchData forall T
|
||||
{% raise "The `expect { }.to_not change { }.to()` syntax is not supported (ambiguous)." %}
|
||||
end
|
||||
|
||||
# Information about the match.
|
||||
def named_tuple
|
||||
{
|
||||
"expected before": NegatableMatchDataValue.new(@expected_after, true),
|
||||
"actual before": @before,
|
||||
"expected after": @expected_after,
|
||||
"actual after": @actual_after,
|
||||
}
|
||||
end
|
||||
# Specifies what the initial value of the expression must be.
|
||||
def from(value : T) forall T
|
||||
raise NotImplementedError.new("ChangeToMatcher#from")
|
||||
end
|
||||
|
||||
# Describes the condition that satisfies the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def message
|
||||
"#{@action_label} changed #{@expression_label} to #{@expected_after}"
|
||||
end
|
||||
# Performs the change and reports the before and after values.
|
||||
private def change(actual)
|
||||
before = expression.value # Retrieve the expression's initial value.
|
||||
actual.value # Invoke action that might change the expression's value.
|
||||
after = expression.value # Retrieve the expression's value again.
|
||||
|
||||
# Describes the condition that won't satsify the matcher.
|
||||
# This is informational and displayed to the end-user.
|
||||
def negated_message
|
||||
"#{@action_label} did not change #{@expression_label} to #{@expected_after}"
|
||||
end
|
||||
{before, after}
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
Loading…
Reference in a new issue