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import SwiftFormat
final class TryCatchTests: PrettyPrintTestCase {
func testBasicTries() {
let input =
"""
let a = try possiblyFailingFunc()
let a = try? possiblyFailingFunc()
let a = try! possiblyFailingFunc()
"""
let expected =
"""
let a = try possiblyFailingFunc()
let a = try? possiblyFailingFunc()
let a = try! possiblyFailingFunc()
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 40)
}
func testDoTryCatch_noBreakBeforeCatch() {
let input =
"""
do { try thisFuncMightFail() } catch error1 { print("Nope") }
do { try thisFuncMightFail() } catch error1 { print("Nope") } catch error2 { print("Nope") }
do { try thisFuncMightFail() } catch error1 { print("Nope") } catch error2(let someVar) { print("Nope") }
do { try thisFuncMightFail() } catch error1 { print("Nope") }
catch error2(let someVar) {
print(someVar)
print("Don't do it!")
}
do { try thisFuncMightFail() } catch is ABadError{ print("Nope") }
"""
let expected =
"""
do {
try thisFuncMightFail()
} catch error1 { print("Nope") }
do {
try thisFuncMightFail()
} catch error1 {
print("Nope")
} catch error2 { print("Nope") }
do {
try thisFuncMightFail()
} catch error1 {
print("Nope")
} catch error2(let someVar) {
print("Nope")
}
do {
try thisFuncMightFail()
} catch error1 {
print("Nope")
} catch error2(let someVar) {
print(someVar)
print("Don't do it!")
}
do {
try thisFuncMightFail()
} catch is ABadError { print("Nope") }
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 40)
}
func testDoTryCatch_breakBeforeCatch() {
let input =
"""
do { try thisFuncMightFail() } catch error1 { print("Nope") }
do { try thisFuncMightFail() } catch error1 { print("Nope") } catch error2 { print("Nope") }
do { try thisFuncMightFail() } catch error1 { print("Nope") } catch error2(let someVar) { print("Nope") }
do { try thisFuncMightFail() } catch error1 { print("Nope") }
catch error2(let someVar) {
print(someVar)
print("Don't do it!")
}
do { try thisFuncMightFail() } catch is ABadError{ print("Nope") }
"""
let expected =
"""
do { try thisFuncMightFail() }
catch error1 { print("Nope") }
do { try thisFuncMightFail() }
catch error1 { print("Nope") }
catch error2 { print("Nope") }
do { try thisFuncMightFail() }
catch error1 { print("Nope") }
catch error2(let someVar) {
print("Nope")
}
do { try thisFuncMightFail() }
catch error1 { print("Nope") }
catch error2(let someVar) {
print(someVar)
print("Don't do it!")
}
do { try thisFuncMightFail() }
catch is ABadError { print("Nope") }
"""
var config = Configuration.forTesting
config.lineBreakBeforeControlFlowKeywords = true
assertPrettyPrintEqual(input: input, expected: expected, linelength: 40, configuration: config)
}
func testCatchWhere_noBreakBeforeCatch() {
let input =
"""
do { try thisFuncMightFail() } catch error1 where error1 is ErrorType { print("Nope") }
do { try thisFuncMightFail() } catch error1 where error1 is LongerErrorType { print("Nope") }
"""
let expected =
"""
do {
try thisFuncMightFail()
} catch error1 where error1 is ErrorType {
print("Nope")
}
do {
try thisFuncMightFail()
} catch error1
where error1 is LongerErrorType
{ print("Nope") }
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 42)
}
func testCatchWhere_breakBeforeCatch() {
let input =
"""
do { try thisFuncMightFail() } catch error1 where error1 is ErrorType { print("Nope") }
do { try thisFuncMightFail() } catch error1 where error1 is LongerErrorType { print("Nope") }
"""
let expected =
"""
do { try thisFuncMightFail() }
catch error1 where error1 is ErrorType {
print("Nope")
}
do { try thisFuncMightFail() }
catch error1
where error1 is LongerErrorType {
print("Nope")
}
"""
var config = Configuration.forTesting
config.lineBreakBeforeControlFlowKeywords = true
assertPrettyPrintEqual(input: input, expected: expected, linelength: 42, configuration: config)
}
func testNestedDo() {
// Avoid regressions in the case where a nested `do` block was getting shifted all the way left.
let input = """
func foo() {
do {
bar()
baz()
}
}
"""
assertPrettyPrintEqual(input: input, expected: input + "\n", linelength: 45)
}
func testMultipleCatchItems() {
let input =
"""
do { try thisMightFail() } catch error1, error2 { print("Nope") }
do { try thisMightFail() } catch longErrorType, error2 { print("Nope") }
do { try thisMightFail() } catch longErrorTypeName, longErrorType2(let someLongVariable) { print("Nope") }
do { try thisMightFail() } catch longErrorTypeName, longErrorType2 as SomeLongErrorType { print("Nope") }
do { try thisMightFail() } catch longErrorName where someCondition, longErrorType2 { print("Nope") }
do { try thisMightFail() } catch longErrorTypeName, longErrorType2 as SomeLongErrorType where someCondition, longErrorType3 { print("Nope") }
"""
let expected =
"""
do {
try thisMightFail()
} catch error1, error2 {
print("Nope")
}
do {
try thisMightFail()
} catch longErrorType,
error2
{ print("Nope") }
do {
try thisMightFail()
} catch
longErrorTypeName,
longErrorType2(
let someLongVariable)
{ print("Nope") }
do {
try thisMightFail()
} catch
longErrorTypeName,
longErrorType2
as SomeLongErrorType
{ print("Nope") }
do {
try thisMightFail()
} catch longErrorName
where someCondition,
longErrorType2
{ print("Nope") }
do {
try thisMightFail()
} catch
longErrorTypeName,
longErrorType2
as SomeLongErrorType
where someCondition,
longErrorType3
{ print("Nope") }
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 25)
}
func testTryKeywordBreaking() {
let input =
"""
let aVeryLongArgumentName = try foo.bar()
let aVeryLongArgumentName = try
foo.bar()
let aVeryLongArgumentName = try? foo.bar()
let abc = try foo.baz().quxxe(a, b, c).bar()
let abc = try foo
.baz().quxxe(a, b, c).bar()
let abc = try [1, 2, 3, 4, 5, 6, 7].baz().quxxe(a, b, c).bar()
let abc = try [1, 2, 3, 4, 5, 6, 7]
.baz().quxxe(a, b, c).bar()
let abc = try foo.baz().quxxe(a, b, c).bar[0]
let abc = try foo
.baz().quxxe(a, b, c).bar[0]
let abc = try
foo
.baz().quxxe(a, b, c).bar[0]
"""
let expected =
"""
let aVeryLongArgumentName =
try foo.bar()
let aVeryLongArgumentName =
try foo.bar()
let aVeryLongArgumentName =
try? foo.bar()
let abc = try foo.baz().quxxe(a, b, c)
.bar()
let abc =
try foo
.baz().quxxe(a, b, c).bar()
let abc = try [1, 2, 3, 4, 5, 6, 7]
.baz().quxxe(a, b, c).bar()
let abc = try [1, 2, 3, 4, 5, 6, 7]
.baz().quxxe(a, b, c).bar()
let abc = try foo.baz().quxxe(a, b, c)
.bar[0]
let abc =
try foo
.baz().quxxe(a, b, c).bar[0]
let abc =
try foo
.baz().quxxe(a, b, c).bar[0]
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 40)
}
}
|
