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|
//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2022-2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import XCTest
final class PredicateMacroBasicTests: XCTestCase {
func testSimple() {
AssertPredicateExpansion(
"""
#Predicate<Object> { input in
return true
}
""",
"""
\(foundationModuleName).Predicate<Object>({ input in
return PredicateExpressions.build_Arg(
true
)
})
"""
)
}
func testImplicitReturn() {
AssertPredicateExpansion(
"""
#Predicate<Object> { input in
true
}
""",
"""
\(foundationModuleName).Predicate<Object>({ input in
PredicateExpressions.build_Arg(
true
)
})
"""
)
}
func testInferredGenerics() {
AssertPredicateExpansion(
"""
#Predicate { input in
true
}
""",
"""
\(foundationModuleName).Predicate({ input in
PredicateExpressions.build_Arg(
true
)
})
"""
)
}
func testShorthandArgumentNames() {
AssertPredicateExpansion(
"""
#Predicate<Object> {
$0
}
""",
"""
\(foundationModuleName).Predicate<Object>({
PredicateExpressions.build_Arg(
$0
)
})
"""
)
}
func testExplicitClosureArgumentTypes() {
AssertPredicateExpansion(
"""
#Predicate<Int, String> { (a: Int, b: String) -> Bool in
true
}
""",
"""
\(foundationModuleName).Predicate<Int, String>({ (a: PredicateExpressions.Variable<Int>, b: PredicateExpressions.Variable<String>) in
PredicateExpressions.build_Arg(
true
)
})
"""
)
}
func testDiagnoseMissingTrailingClosure() {
AssertPredicateExpansion(
"""
#Predicate
""",
diagnostics: ["1:1: #Predicate macro expansion requires a trailing closure"]
)
AssertPredicateExpansion(
"""
#Predicate<Object>
""",
diagnostics: ["1:1: #Predicate macro expansion requires a trailing closure"]
)
AssertPredicateExpansion(
"""
#Predicate<Object>(myClosure)
""",
diagnostics: ["1:1: #Predicate macro expansion requires a trailing closure"]
)
AssertPredicateExpansion(
"""
#Predicate<Object>({
return true
})
""",
diagnostics: [
DiagnosticTest(
"1:1: #Predicate macro expansion requires a trailing closure",
fixIts: [
DiagnosticTest.FixItTest(
"Use a trailing closure instead of a function parameter",
result: """
#Predicate<Object> {
return true
}
"""
)
]
)
]
)
}
func testKeyPath() {
AssertPredicateExpansion(
"""
#Predicate<Object> {
$0.foo
}
""",
"""
\(foundationModuleName).Predicate<Object>({
PredicateExpressions.build_KeyPath(
root: PredicateExpressions.build_Arg($0),
keyPath: \\.foo
)
})
"""
)
AssertPredicateExpansion(
"""
#Predicate<Object> { input in
input.foo
}
""",
"""
\(foundationModuleName).Predicate<Object>({ input in
PredicateExpressions.build_KeyPath(
root: PredicateExpressions.build_Arg(input),
keyPath: \\.foo
)
})
"""
)
AssertPredicateExpansion(
"""
#Predicate<Object> {
$0.foo.bar
}
""",
"""
\(foundationModuleName).Predicate<Object>({
PredicateExpressions.build_KeyPath(
root: PredicateExpressions.build_KeyPath(
root: PredicateExpressions.build_Arg($0),
keyPath: \\.foo
),
keyPath: \\.bar
)
})
"""
)
}
func testComments() {
AssertPredicateExpansion(
"""
// comment
#Predicate<Object> { input in // comment
return true // comment
} // comment
""",
"""
// comment
\(foundationModuleName).Predicate<Object>({ input in
return PredicateExpressions.build_Arg(
true // comment
)
}) // comment
"""
)
}
}
|
