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/*
This source file is part of the Swift.org open source project
Copyright (c) 2021 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 Swift project authors
*/
import XCTest
@testable import SymbolKit
class LineListTranslationTests: XCTestCase {
typealias LineList = SymbolGraph.LineList
typealias Line = SymbolGraph.LineList.Line
typealias SourceRange = SymbolGraph.LineList.SourceRange
typealias SourcePosition = SymbolGraph.LineList.SourceRange.Position
/// Test that mapping into the same space has no effect.
func testSameSpace() {
let fileLines = LineList([
Line(text: "This is", range: SourceRange(start: SourcePosition(line: 0, character: 0), end: SourcePosition(line: 0, character: 7))),
Line(text: "a doc comment.", range: SourceRange(start: SourcePosition(line: 1, character: 0), end: SourcePosition(line: 1, character: 14))),
])
for line in 0..<2 {
for character in 0..<8 {
let position = SourcePosition(line: line, character: character)
XCTAssertEqual(position, fileLines.translateToFileSpace(position))
}
}
XCTAssertEqual(SourcePosition(line: 0, character: 0), fileLines.translateToFileSpace(SourcePosition(line: 0, character: 0)))
}
/// Test that mapping into a different space goes to the right line and character offset.
func testDifferentSpace() {
/**
As if:
```swift
v v
0123456789ABCDEFGHI
20 /// This is
21 /// a doc comment.
^ ^
```
*/
let fileLines = LineList([
Line(text: "This is", range: SourceRange(start: SourcePosition(line: 20, character: 4), end: SourcePosition(line: 20, character: 11))),
Line(text: "a doc comment.", range: SourceRange(start: SourcePosition(line: 21, character: 4), end: SourcePosition(line: 21, character: 18))),
])
XCTAssertEqual(SourcePosition(line: 20, character: 4), fileLines.translateToFileSpace(SourcePosition(line: 0, character: 0)))
XCTAssertEqual(SourcePosition(line: 21, character: 4), fileLines.translateToFileSpace(SourcePosition(line: 1, character: 0)))
}
/// Test that not having source information returns `nil` when trying to map into the file's space.
func testNoSourceInformation() {
let fileLines = LineList([
Line(text: "This is", range: nil),
Line(text: "a doc comment.", range: nil),
])
for line in 0..<2 {
for character in 0..<8 {
XCTAssertNil(fileLines.translateToFileSpace(SourcePosition(line: line, character: character)))
}
}
}
}
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