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final class TernaryExprTests: PrettyPrintTestCase {
func testTernaryExprs() {
let input =
"""
let x = a ? b : c
let y = a ?b:c
let z = a ? b: c
let reallyLongName = a ? longTruePart : longFalsePart
let reallyLongName = reallyLongCondition ? reallyLongTruePart : reallyLongFalsePart
let reallyLongName = reallyLongCondition ? reallyReallyReallyLongTruePart : reallyLongFalsePart
let reallyLongName = someCondition ? firstFunc(foo: arg) : secondFunc(bar: arg)
"""
let expected =
"""
let x = a ? b : c
let y = a ? b : c
let z = a ? b : c
let reallyLongName =
a ? longTruePart : longFalsePart
let reallyLongName =
reallyLongCondition
? reallyLongTruePart : reallyLongFalsePart
let reallyLongName =
reallyLongCondition
? reallyReallyReallyLongTruePart
: reallyLongFalsePart
let reallyLongName =
someCondition
? firstFunc(foo: arg)
: secondFunc(bar: arg)
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 45)
}
func testTernaryExprsWithMultiplePartChoices() {
let input =
"""
let someLocalizedText =
shouldUseTheFirstOption ? stringFunc(name: "Name1", comment: "short comment") :
stringFunc(name: "Name2", comment: "Some very, extremely long comment", details: "Another comment")
"""
let expected =
"""
let someLocalizedText =
shouldUseTheFirstOption
? stringFunc(name: "Name1", comment: "short comment")
: stringFunc(
name: "Name2", comment: "Some very, extremely long comment",
details: "Another comment")
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 80)
}
func testTernaryWithWrappingExpressions() {
let input =
"""
foo = firstTerm + secondTerm + thirdTerm ? firstTerm + secondTerm + thirdTerm : firstTerm + secondTerm + thirdTerm
let foo = firstTerm + secondTerm + thirdTerm ? firstTerm + secondTerm + thirdTerm : firstTerm + secondTerm + thirdTerm
foo = firstTerm || secondTerm && thirdTerm ? firstTerm + secondTerm + thirdTerm : firstTerm + secondTerm + thirdTerm
let foo = firstTerm || secondTerm && thirdTerm ? firstTerm + secondTerm + thirdTerm : firstTerm + secondTerm + thirdTerm
"""
let expected =
"""
foo =
firstTerm
+ secondTerm
+ thirdTerm
? firstTerm
+ secondTerm
+ thirdTerm
: firstTerm
+ secondTerm
+ thirdTerm
let foo =
firstTerm
+ secondTerm
+ thirdTerm
? firstTerm
+ secondTerm
+ thirdTerm
: firstTerm
+ secondTerm
+ thirdTerm
foo =
firstTerm
|| secondTerm
&& thirdTerm
? firstTerm
+ secondTerm
+ thirdTerm
: firstTerm
+ secondTerm
+ thirdTerm
let foo =
firstTerm
|| secondTerm
&& thirdTerm
? firstTerm
+ secondTerm
+ thirdTerm
: firstTerm
+ secondTerm
+ thirdTerm
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 15)
}
func testNestedTernaries() {
let input =
"""
a = b ? c : d ? e : f
let a = b ? c : d ? e : f
a = b ? c0 + c1 : d ? e : f
let a = b ? c0 + c1 : d ? e : f
a = b ? c0 + c1 + c2 + c3 : d ? e : f
let a = b ? c0 + c1 + c2 + c3 : d ? e : f
foo = testA ? testB ? testC : testD : testE ? testF : testG
let foo = testA ? testB ? testC : testD : testE ? testF : testG
"""
let expected =
"""
a =
b
? c
: d ? e : f
let a =
b
? c
: d ? e : f
a =
b
? c0 + c1
: d ? e : f
let a =
b
? c0 + c1
: d ? e : f
a =
b
? c0 + c1
+ c2 + c3
: d ? e : f
let a =
b
? c0 + c1
+ c2 + c3
: d ? e : f
foo =
testA
? testB
? testC
: testD
: testE
? testF
: testG
let foo =
testA
? testB
? testC
: testD
: testE
? testF
: testG
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 15)
}
func testExpressionStartsWithTernary() {
// When the ternary itself doesn't already start on a continuation line, we don't have a way
// to indent the continuation of the condition differently from the first and second choices,
// because we don't want to double-indent the condition's continuation lines, and we don't want
// to keep put the choices at the same indentation level as the condition (because that would
// be the start of the statement). Neither of these choices is really ideal, unfortunately.
let input =
"""
condition ? callSomething() : callSomethingElse()
condition && otherCondition ? callSomething() : callSomethingElse()
(condition && otherCondition) ? callSomething() : callSomethingElse()
"""
let expected =
"""
condition
? callSomething()
: callSomethingElse()
condition
&& otherCondition
? callSomething()
: callSomethingElse()
(condition
&& otherCondition)
? callSomething()
: callSomethingElse()
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 25)
}
func testParenthesizedTernary() {
let input =
"""
let a = (
foo ?
bar : baz
)
a = (
foo ?
bar : baz
)
b = foo ? (
bar
) : (
baz
)
c = foo ?
(
foo2 ? nestedBar : nestedBaz
) : (baz)
"""
let expected =
"""
let a = (foo ? bar : baz)
a = (foo ? bar : baz)
b = foo ? (bar) : (baz)
c = foo ? (foo2 ? nestedBar : nestedBaz) : (baz)
"""
assertPrettyPrintEqual(input: input, expected: expected, linelength: 50)
}
}
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