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38 lines
1.2 KiB
Swift
38 lines
1.2 KiB
Swift
final class DiffTests: XCTestCase {
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func testSESOverEmptyCollectionsIsEmpty() {
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XCTAssertEqual(Diff.diff([], []), [])
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}
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func testSESOverEmptyAndNonEmptyCollectionsIsInsertions() {
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XCTAssertEqual(Diff.diff([], [ a, b ]), [ Diff.Patch(.Empty, a), Diff.Patch(.Empty, b) ])
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}
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func testSESOverNonEmptyAndEmptyCollectionsIsDeletions() {
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XCTAssertEqual(Diff.diff([ a, b ], []), [ Diff.Patch(a, .Empty), Diff.Patch(b, .Empty) ])
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}
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func testSESCanInsertAtHead() {
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XCTAssertEqual(Diff.diff([ a, b, c ], [ d, a, b, c ]), [ Diff.Insert(d), Diff(a), Diff(b), Diff(c) ])
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}
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func testSESCanDeleteAtHead() {
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XCTAssertEqual(Diff.diff([ d, a, b, c ], [ a, b, c ]), [ Diff.Delete(d), Diff(a), Diff(b), Diff(c) ])
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}
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func testSESCanInsertInMiddle() {
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XCTAssertEqual(Diff.diff([ a, b, c ], [ a, d, b, c ]), [ Diff(a), Diff.Insert(d), Diff(b), Diff(c) ])
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}
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func testSESCanDeleteInMiddle() {
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XCTAssertEqual(Diff.diff([ a, d, b, c ], [ a, b, c ]), [ Diff(a), Diff.Delete(d), Diff(b), Diff(c) ])
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}
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}
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private let a = Term(.Literal("a"))
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private let b = Term(.Literal("b"))
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private let c = Term(.Literal("c"))
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private let d = Term(.Literal("d"))
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import Doubt
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import XCTest
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