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Test SES deleting at head.

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This commit is contained in:
Rob Rix 2015-09-17 15:56:01 -04:00
parent 8c642c6f94
commit 3885572e72
1 changed files with 4 additions and 0 deletions
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4
prototype/DoubtTests/DiffTests.swift
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@ -14,6 +14,10 @@ final class DiffTests: XCTestCase {
func testSESCanInsertAtHead() {
XCTAssertEqual(Diff.diff([ a, b, c ], [ d, a, b, c ]), [ Diff.Insert(d), Diff(a), Diff(b), Diff(c) ])
}
func testSESCanDeleteAtHead() {
XCTAssertEqual(Diff.diff([ d, a, b, c ], [ a, b, c ]), [ Diff.Delete(d), Diff(a), Diff(b), Diff(c) ])
}
}
private let a = Fix(.Literal("a"))