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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 Markdown
final class ParagraphTests: XCTestCase {
func testParagraphInserting() {
let paragraph = Paragraph(Strong(Text("OK")))
let id = paragraph._data.id
do { // Insert nothing
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<0, with: [])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Strong(Text("OK"))), expectedId: id)
let expectedDump = """
Paragraph
└─ Strong
└─ Text "OK"
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
do { // Insert one
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<0, with: [InlineCode("Array")])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Strong(Text("OK"))), expectedId: id)
let expectedDump = """
Paragraph
├─ InlineCode `Array`
└─ Strong
└─ Text "OK"
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
do { // Insert many
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<0, with: [Text](repeating: Text("OK"), count: 5))
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Strong(Text("OK"))), expectedId: id)
let expectedDump = """
Paragraph
├─ Text "OK"
├─ Text "OK"
├─ Text "OK"
├─ Text "OK"
├─ Text "OK"
└─ Strong
└─ Text "OK"
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
}
func testParagraphReplacingChildrenInRange() {
let paragraph = Paragraph(Text("1"), Text("2"), Text("3"), Text("4"))
let id = paragraph._data.id
do { // Replace one
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<1, with: [Text("Changed")])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Text("1"), Text("2"), Text("3"), Text("4")), expectedId: id)
let expectedDump = """
Paragraph
├─ Text "Changed"
├─ Text "2"
├─ Text "3"
└─ Text "4"
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
do { // Replace many
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<3, with: [Text("Changed")])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Text("1"), Text("2"), Text("3"), Text("4")), expectedId: id)
let expectedDump = """
Paragraph
├─ Text "Changed"
└─ Text "4"
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
do { // Replace all
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<4, with: [Text("Changed")])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Text("1"), Text("2"), Text("3"), Text("4")), expectedId: id)
let expectedDump = """
Paragraph
└─ Text "Changed"
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
}
func testParagraphDeleting() {
let paragraph = Paragraph(Text("1"), Text("2"), Text("3"), Text("4"))
let id = paragraph._data.id
do { // None
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<0, with: [])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Text("1"), Text("2"), Text("3"), Text("4")), expectedId: id)
XCTAssertEqual(paragraph.debugDescription(), newParagraph.debugDescription())
}
do { // One
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<1, with: [])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Text("1"), Text("2"), Text("3"), Text("4")), expectedId: id)
let expectedDump = """
Paragraph
├─ Text "2"
├─ Text "3"
└─ Text "4"
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
do { // Many
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<3, with: [])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Text("1"), Text("2"), Text("3"), Text("4")), expectedId: id)
let expectedDump = """
Paragraph
└─ Text "4"
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
do { // All
var newParagraph = paragraph
newParagraph.replaceChildrenInRange(0..<4, with: [])
assertElementDidntChange(paragraph, assertedStructure: Paragraph(Text("1"), Text("2"), Text("3"), Text("4")), expectedId: id)
let expectedDump = """
Paragraph
"""
XCTAssertEqual(expectedDump, newParagraph.debugDescription())
}
}
}
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