Spec: OALayoutAnchorSpec

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Describe: OALayoutAnchor
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    When: Leading Anchors and Top
        It: can place views correctly
        It: can place views correctly with positive constants
        It: can place views correctly with negative constants

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: Trailing Anchors and Bottom
        It: can place views correctly
        It: can place views correctly with positive constants
        It: can place views correctly with negative constants

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: Leading to Trailing and Top - Top
        It: can place views correctly

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: Trailing to Leading and Top - Top
        It: can place views correctly

    When: Left to Left and Top - Bottom
        It: can place views correctly

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: Right to Right and Top - Bottom
        It: can place views correctly

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: CenterX and Bottom - Bottom
        It: can place views correctly

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: CenterY and Leading
        It: can place views correctly

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: Width and height
        It: can place views correctly

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: Width and height with multipliers
        It: can place views correctly

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints

    When: Width and height with multipliers and constants
        It: can place views correctly

        When: Greater than or Less than constraints
            It: can place views correctly with greater than constraints
            It: can place views correctly with less than constraints
Spec: UIView_OALayoutAnchorSpec

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Describe: UIView+OALayoutAnchor
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    It: Should create the anchor the first time
    It: Should not create the anchor the second time

    When: Anchors
        It: Should create a leading anchor
        It: Should create a trailing anchor
        It: Should create a left anchor
        It: Should create a right anchor
        It: Should create a top anchor
        It: Should create a bottom anchor
        It: Should create a width anchor
        It: Should create a height anchor
        It: Should create a center X anchor
        It: Should create a center Y anchor
        It: Should create a first baseline anchor
        It: Should create a last baseline anchor