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import SwiftSyntax
import SwiftParser
import XCTest
@_spi(Testing) import SwiftFormat
final class RuleMaskTests: XCTestCase {
/// The source converter for the text in the current test. This is implicitly unwrapped because
/// each test case must prepare some source text before performing any assertions, otherwise
/// there's a developer error.
var converter: SourceLocationConverter!
private func createMask(sourceText: String) -> RuleMask {
let fileURL = URL(fileURLWithPath: "/tmp/test.swift")
let syntax = Parser.parse(source: sourceText)
converter = SourceLocationConverter(fileName: fileURL.path, tree: syntax)
return RuleMask(syntaxNode: Syntax(syntax), sourceLocationConverter: converter)
}
/// Returns the source location that corresponds to the given line and column numbers.
private func location(ofLine line: Int, column: Int = 0) -> SourceLocation {
return converter.location(for: converter.position(ofLine: line, column: column))
}
func testSingleRule() {
let text =
"""
let a = 123
// swift-format-ignore: rule1
let b = 456
let c = 789
"""
let mask = createMask(sourceText: text)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 1)), .default)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 3)), .disabled)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 4)), .default)
}
func testIgnoreTwoRules() {
let text =
"""
let a = 123
// swift-format-ignore: rule1
let b = 456
// swift-format-ignore: rule2
let c = 789
// swift-format-ignore: rule1, rule2
let d = "abc"
let e = "def"
"""
let mask = createMask(sourceText: text)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 1)), .default)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 3)), .disabled)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 5)), .default)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 7)), .disabled)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 8)), .default)
XCTAssertEqual(mask.ruleState("rule2", at: location(ofLine: 1)), .default)
XCTAssertEqual(mask.ruleState("rule2", at: location(ofLine: 3)), .default)
XCTAssertEqual(mask.ruleState("rule2", at: location(ofLine: 5)), .disabled)
XCTAssertEqual(mask.ruleState("rule2", at: location(ofLine: 7)), .disabled)
XCTAssertEqual(mask.ruleState("rule2", at: location(ofLine: 8)), .default)
}
func testDuplicateNested() {
let text =
"""
// swift-format-ignore: rule1
struct Foo {
var bar = 0
// swift-format-ignore: rule1
var baz = 0
// swift-format-ignore: rule4
var bazzle = 0
var barzle = 0
}
"""
let mask = createMask(sourceText: text)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 3, column: 3)), .disabled)
XCTAssertEqual(mask.ruleState("rule4", at: location(ofLine: 3, column: 3)), .default)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 6, column: 3)), .disabled)
XCTAssertEqual(mask.ruleState("rule4", at: location(ofLine: 6, column: 3)), .default)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 9, column: 3)), .disabled)
XCTAssertEqual(mask.ruleState("rule4", at: location(ofLine: 9, column: 3)), .disabled)
XCTAssertEqual(mask.ruleState("rule4", at: location(ofLine: 11, column: 3)), .default)
}
func testSpuriousFlags() {
let text1 =
"""
let a = 123
let b = 456 // swift-format-ignore: rule1
let c = 789
/* swift-format-ignore: rule2 */
let d = 111
// swift-format-ignore:
let b = 456
"""
let mask1 = createMask(sourceText: text1)
XCTAssertEqual(mask1.ruleState("rule1", at: location(ofLine: 1)), .default)
XCTAssertEqual(mask1.ruleState("rule1", at: location(ofLine: 2)), .default)
XCTAssertEqual(mask1.ruleState("rule1", at: location(ofLine: 3)), .default)
XCTAssertEqual(mask1.ruleState("rule1", at: location(ofLine: 5)), .default)
XCTAssertEqual(mask1.ruleState("rule1", at: location(ofLine: 7)), .default)
let text2 =
#"""
let a = 123
let b =
"""
// swift-format-ignore: rule1
"""
let c = 789
// swift-format-ignore: rule1
let d = "abc"
"""#
let mask2 = createMask(sourceText: text2)
XCTAssertEqual(mask2.ruleState("rule1", at: location(ofLine: 1)), .default)
XCTAssertEqual(mask2.ruleState("rule1", at: location(ofLine: 6)), .default)
XCTAssertEqual(mask2.ruleState("rule1", at: location(ofLine: 8)), .disabled)
}
func testNamelessDirectiveAffectsAllRules() {
let text =
"""
let a = 123
// swift-format-ignore
let b = 456
let c = 789
"""
let mask = createMask(sourceText: text)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 1)), .default)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 3)), .disabled)
XCTAssertEqual(mask.ruleState("TotallyMadeUpRule", at: location(ofLine: 3)), .disabled)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 4)), .default)
}
func testDirectiveWithRulesList() {
let text =
"""
let a = 123
// swift-format-ignore: rule1, rule2 , AnotherRule , TheBestRule,, , , ,
let b = 456
let c = 789
"""
let mask = createMask(sourceText: text)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 1)), .default)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 3)), .disabled)
XCTAssertEqual(mask.ruleState("rule2", at: location(ofLine: 3)), .disabled)
XCTAssertEqual(mask.ruleState("AnotherRule", at: location(ofLine: 3)), .disabled)
XCTAssertEqual(mask.ruleState("TheBestRule", at: location(ofLine: 3)), .disabled)
XCTAssertEqual(mask.ruleState("TotallyMadeUpRule", at: location(ofLine: 3)), .default)
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: 4)), .default)
}
func testAllRulesWholeFileIgnore() {
let text =
"""
// This file has important contents.
// swift-format-ignore-file
// Everything in this file is ignored.
let a = 5
let b = 4
class Foo {
let member1 = 0
func foo() {
baz()
}
}
struct Baz {
}
"""
let mask = createMask(sourceText: text)
let lineCount = text.split(separator: "\n").count
for i in 0..<lineCount {
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: i)), .disabled)
}
}
func testAllRulesWholeFileIgnoreNestedInNode() {
let text =
"""
// This file has important contents.
// Everything in this file is ignored.
let a = 5
let b = 4
class Foo {
// swift-format-ignore-file
let member1 = 0
func foo() {
baz()
}
}
struct Baz {
}
"""
let mask = createMask(sourceText: text)
let lineCount = text.split(separator: "\n").count
for i in 0..<lineCount {
XCTAssertEqual(mask.ruleState("rule1", at: location(ofLine: i)), .default)
}
}
}
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