From 544073f701aa05753d0b480793592ca267e72d18 Mon Sep 17 00:00:00 2001
From: odow <o.dowson@gmail.com>
Date: Wed, 20 Sep 2023 10:54:12 +1200
Subject: [PATCH] [Bridges] fix ConstraintDualStart for
 Constraint.SplitIntervalBridge

---
 src/Bridges/Constraint/bridges/interval.jl |  6 ++---
 test/Bridges/Constraint/interval.jl        | 28 ++++++++++++++++++++++
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/src/Bridges/Constraint/bridges/interval.jl b/src/Bridges/Constraint/bridges/interval.jl
index f2e871bbbe..f9f35224a4 100644
--- a/src/Bridges/Constraint/bridges/interval.jl
+++ b/src/Bridges/Constraint/bridges/interval.jl
@@ -287,12 +287,12 @@ function _split_dual_start(value)
     end
 end
 
-function _split_dual_start(value::Vector)
-    lower = similar(value)
-    upper = similar(value)
+function _split_dual_start(value::Vector{T}) where {T}
+    lower, upper = similar(value), similar(value)
     for i in eachindex(value)
         lower[i], upper[i] = _split_dual_start(value[i])
     end
+    return lower, upper
 end
 
 function MOI.set(
diff --git a/test/Bridges/Constraint/interval.jl b/test/Bridges/Constraint/interval.jl
index a654c380b4..79009370e5 100644
--- a/test/Bridges/Constraint/interval.jl
+++ b/test/Bridges/Constraint/interval.jl
@@ -471,6 +471,34 @@ function test_runtests()
     return
 end
 
+function test_runtests_vector()
+    MOI.Bridges.runtests(
+        MOI.Bridges.Constraint.SplitIntervalBridge,
+        """
+        variables: x
+        [x] in Zeros(1)
+        """,
+        """
+        variables: x
+        [x] in Nonnegatives(1)
+        [x] in Nonpositives(1)
+        """,
+    )
+    MOI.Bridges.runtests(
+        MOI.Bridges.Constraint.SplitIntervalBridge,
+        """
+        variables: x, y
+        [1.0 * x + 2.0, x + y] in Zeros(2)
+        """,
+        """
+        variables: x, y
+        [1.0 * x + 2.0, x + y] in Nonnegatives(2)
+        [1.0 * x + 2.0, x + y] in Nonpositives(2)
+        """,
+    )
+    return
+end
+
 end  # module
 
 TestConstraintSplitInterval.runtests()