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import SwiftFormat
import _SwiftFormatTestSupport
// A note about these tests: `WhitespaceLinter` *only* emits findings; it does not do any
// reformatting. Therefore, in these tests the "expected" source code is the desired string that the
// linter is diffing against.
final class WhitespaceLintTests: WhitespaceTestCase {
func testSpacing() {
assertWhitespaceLint(
input: """
let a1️⃣ : Int = 123
let b =2️⃣456
""",
expected: """
let a: Int = 123
let b = 456
""",
findings: [
FindingSpec("1️⃣", message: "remove 1 space"),
FindingSpec("2️⃣", message: "add 1 space"),
]
)
}
func testTabSpacing() {
assertWhitespaceLint(
input: """
let a1️⃣\t: Int = 123
""",
expected: """
let a: Int = 123
""",
findings: [
FindingSpec("1️⃣", message: "use spaces for spacing"),
]
)
}
func testSpaceIndentation() {
assertWhitespaceLint(
input: """
1️⃣ let a = 123
2️⃣let b = 456
3️⃣ let c = "abc"
4️⃣\tlet d = 111
""",
expected: """
let a = 123
let b = 456
let c = "abc"
let d = 111
""",
findings: [
FindingSpec("1️⃣", message: "remove all leading whitespace"),
FindingSpec("2️⃣", message: "replace leading whitespace with 4 spaces"),
FindingSpec("3️⃣", message: "remove all leading whitespace"),
FindingSpec("4️⃣", message: "replace leading whitespace with 2 spaces"),
]
)
}
func testTabIndentation() {
assertWhitespaceLint(
input: """
1️⃣\t\tlet a = 123
2️⃣let b = 456
3️⃣ let c = "abc"
4️⃣ let d = 111
""",
expected: """
let a = 123
\tlet b = 456
let c = "abc"
\t\tlet d = 111
""",
findings: [
FindingSpec("1️⃣", message: "remove all leading whitespace"),
FindingSpec("2️⃣", message: "replace leading whitespace with 1 tab"),
FindingSpec("3️⃣", message: "remove all leading whitespace"),
FindingSpec("4️⃣", message: "replace leading whitespace with 2 tabs"),
]
)
}
func testHeterogeneousIndentation() {
assertWhitespaceLint(
input: """
1️⃣\t\t \t let a = 123
2️⃣let b = 456
3️⃣ let c = "abc"
4️⃣ \tlet d = 111
5️⃣\t let e = 111
""",
expected: """
let a = 123
\t \t let b = 456
let c = "abc"
let d = 111
\tlet e = 111
""",
findings: [
FindingSpec("1️⃣", message: "replace leading whitespace with 2 spaces"),
FindingSpec("2️⃣", message: "replace leading whitespace with 1 tab, 2 spaces, 1 tab, 1 space"),
FindingSpec("3️⃣", message: "remove all leading whitespace"),
FindingSpec("4️⃣", message: "replace leading whitespace with 2 spaces"),
FindingSpec("5️⃣", message: "replace leading whitespace with 1 space, 1 tab"),
]
)
}
func testTrailingWhitespace() {
assertWhitespaceLint(
input: """
let a = 1231️⃣\u{20}\u{20}
let b = "abc"2️⃣\u{20}
let c = "def"
3️⃣\u{20}\u{20}
let d = 4564️⃣\u{20}\u{20}\u{20}
""",
expected: """
let a = 123
let b = "abc"
let c = "def"
let d = 456
""",
findings: [
FindingSpec("1️⃣", message: "remove trailing whitespace"),
FindingSpec("2️⃣", message: "remove trailing whitespace"),
FindingSpec("3️⃣", message: "remove trailing whitespace"),
FindingSpec("4️⃣", message: "remove trailing whitespace"),
]
)
}
func testAddLines() {
assertWhitespaceLint(
input: """
let a = 1231️⃣
let b = "abc"
func myfun() {2️⃣ return3️⃣ }
""",
expected: """
let a = 123
let b = "abc"
func myfun() {
return
}
""",
findings: [
FindingSpec("1️⃣", message: "add 1 line break"),
FindingSpec("2️⃣", message: "add 1 line break"),
FindingSpec("3️⃣", message: "add 1 line break"),
]
)
}
func testRemoveLines() {
assertWhitespaceLint(
input: """
let a = 1231️⃣
let b = "abc"2️⃣
3️⃣
let c = 456
func myFun() {4️⃣
return someValue5️⃣
}
""",
expected: """
let a = 123
let b = "abc"
let c = 456
func myFun() { return someValue }
""",
findings: [
FindingSpec("1️⃣", message: "remove line break"),
FindingSpec("2️⃣", message: "remove line break"),
FindingSpec("3️⃣", message: "remove line break"),
FindingSpec("4️⃣", message: "remove line break"),
FindingSpec("5️⃣", message: "remove line break"),
]
)
}
func testLineLength() {
assertWhitespaceLint(
input: """
1️⃣func myFunc(longVar1: Bool, longVar2: Bool, longVar3: Bool, longVar4: Bool) {
// do stuff
}
2️⃣func myFunc(longVar1: Bool, longVar2: Bool,
longVar3: Bool,
longVar4: Bool3️⃣) {
// do stuff
}
""",
expected: """
func myFunc(
longVar1: Bool,
longVar2: Bool,
longVar3: Bool,
longVar4: Bool
) {
// do stuff
}
func myFunc(
longVar1: Bool,
longVar2: Bool,
longVar3: Bool,
longVar4: Bool
) {
// do stuff
}
""",
linelength: 30,
findings: [
FindingSpec("1️⃣", message: "line is too long"),
FindingSpec("2️⃣", message: "line is too long"),
FindingSpec("3️⃣", message: "add 1 line break"),
]
)
}
}
|
