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Test that locations are sequenced in depth-first pre-order.

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This commit is contained in:
Rob Rix 2015-11-05 11:38:15 -05:00
parent 59ef9b1eb4
commit 839a62ff0c
1 changed files with 4 additions and 0 deletions
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4
prototype/DoubtTests/LocationTests.swift
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@ -43,6 +43,10 @@ final class LocationTests: XCTestCase {
func testCanReturnToStartOfExplorationFromArbitrarilyDeepNodes() {
assert(term.explore().down?.right?.right?.down?.right?.root.it, ==, term)
}
func testSequenceIsPreOrderDepthFirstTraversal() {
assert(term.explore().map { $0.it.extract }, ==, [ 0, 1, 2, 3, 5, 4 ])
}
}