1 files changed, 115 insertions, 0 deletions
diff --git a/solver/src/test/java/android/support/constraint/solver/ChainTest.java b/solver/src/test/java/android/support/constraint/solver/ChainTest.java
index cf1dca6..520a83b 100644
--- a/solver/src/test/java/android/support/constraint/solver/ChainTest.java
+++ b/solver/src/test/java/android/support/constraint/solver/ChainTest.java
@@ -180,6 +180,7 @@ public class ChainTest {
         B.setDebugName("B");
         root.add(A);
         root.add(B);
+        root.setOptimizationLevel(Optimizer.OPTIMIZATION_NONE);
         A.connect(ConstraintAnchor.Type.LEFT, root, ConstraintAnchor.Type.LEFT);
         A.connect(ConstraintAnchor.Type.RIGHT, B, ConstraintAnchor.Type.LEFT);
         B.connect(ConstraintAnchor.Type.LEFT, A, ConstraintAnchor.Type.RIGHT);
@@ -279,6 +280,120 @@ public class ChainTest {
         assertEquals(A.getWidth() + B.getWidth(), root.getWidth());
     }
 
+    /**
+     * testPackChain with current Chain Optimizations.
+     */
+    @Test
+    public void testPackChainOpt() {
+        ConstraintWidgetContainer root = new ConstraintWidgetContainer(0, 0, 600, 600);
+        ConstraintWidget A = new ConstraintWidget(100, 20);
+        ConstraintWidget B = new ConstraintWidget(100, 20);
+        root.setDebugName("root");
+        A.setDebugName("A");
+        B.setDebugName("B");
+        root.add(A);
+        root.add(B);
+        root.setOptimizationLevel(Optimizer.OPTIMIZATION_DIRECT | Optimizer.OPTIMIZATION_BARRIER
+            | Optimizer.OPTIMIZATION_CHAIN);
+        A.connect(ConstraintAnchor.Type.LEFT, root, ConstraintAnchor.Type.LEFT);
+        A.connect(ConstraintAnchor.Type.RIGHT, B, ConstraintAnchor.Type.LEFT);
+        B.connect(ConstraintAnchor.Type.LEFT, A, ConstraintAnchor.Type.RIGHT);
+        B.connect(ConstraintAnchor.Type.RIGHT, root, ConstraintAnchor.Type.RIGHT);
+        A.setHorizontalChainStyle(ConstraintWidget.CHAIN_PACKED);
+        root.layout();
+        System.out.println("a) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 100);
+        assertEquals(B.getWidth(), 100);
+        assertEquals(A.getLeft(), root.getWidth() - B.getRight());
+        assertEquals(B.getLeft(), A.getLeft() + A.getWidth());
+        A.setVisibility(ConstraintWidget.GONE);
+        root.layout();
+        System.out.println("b) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 0);
+        assertEquals(B.getWidth(), 100);
+        assertEquals(A.getLeft(), root.getWidth() - B.getRight());
+        assertEquals(B.getLeft(), A.getLeft() + A.getWidth());
+        B.setVisibility(ConstraintWidget.GONE);
+        root.layout();
+        System.out.println("c) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 0);
+        assertEquals(B.getWidth(), 0);
+        assertEquals(A.getLeft(), 300);
+        assertEquals(B.getLeft(), A.getLeft() + A.getWidth());
+        A.setVisibility(ConstraintWidget.VISIBLE);
+        A.setWidth(100);
+        root.layout();
+        System.out.println("d) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 100);
+        assertEquals(B.getWidth(), 0);
+        assertEquals(A.getLeft(), root.getWidth() - B.getRight());
+        assertEquals(B.getLeft(), A.getLeft() + A.getWidth());
+        A.setVisibility(ConstraintWidget.VISIBLE);
+        A.setWidth(100);
+        A.setHeight(20);
+        B.setVisibility(ConstraintWidget.VISIBLE);
+        B.setWidth(100);
+        B.setHeight(20);
+        B.setHorizontalDimensionBehaviour(ConstraintWidget.DimensionBehaviour.MATCH_CONSTRAINT);
+        B.setHorizontalMatchStyle(ConstraintWidget.MATCH_CONSTRAINT_WRAP, 0, 0, 1);
+        root.layout();
+        System.out.println("e) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 100);
+        assertEquals(B.getWidth(), 100);
+        assertEquals(A.getLeft(), root.getWidth() - B.getRight());
+        assertEquals(B.getLeft(), A.getLeft() + A.getWidth());
+        B.setHorizontalMatchStyle(ConstraintWidget.MATCH_CONSTRAINT_SPREAD, 0, 0, 1);
+        root.layout();
+        System.out.println("f) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 100);
+        assertEquals(B.getWidth(), 500);
+        assertEquals(A.getLeft(), 0);
+        assertEquals(B.getLeft(), 100);
+        B.setHorizontalMatchStyle(ConstraintWidget.MATCH_CONSTRAINT_SPREAD, 0, 50, 1);
+        root.layout();
+        System.out.println("g) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 100);
+        assertEquals(B.getWidth(), 50);
+        assertEquals(A.getLeft(), root.getWidth() - B.getRight());
+        assertEquals(B.getLeft(), A.getLeft() + A.getWidth());
+        B.setHorizontalMatchStyle(ConstraintWidget.MATCH_CONSTRAINT_PERCENT, 0, 0, 0.3f);
+        root.layout();
+        System.out.println("h) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 100);
+        assertEquals(B.getWidth(), (int) (0.3f * 600));
+        assertEquals(A.getLeft(), root.getWidth() - B.getRight());
+        assertEquals(B.getLeft(), A.getLeft() + A.getWidth());
+        B.setDimensionRatio("16:9");
+        B.setHorizontalMatchStyle(ConstraintWidget.MATCH_CONSTRAINT_RATIO, 0, 0, 1);
+        root.layout();
+        System.out.println("i) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), 100);
+        assertEquals(B.getWidth(), (int)(16f/9f*20), 1);
+        assertEquals(A.getLeft(), root.getWidth() - B.getRight(), 1);
+        assertEquals(B.getLeft(), A.getLeft() + A.getWidth());
+        A.setHorizontalDimensionBehaviour(ConstraintWidget.DimensionBehaviour.MATCH_CONSTRAINT);
+        A.setHorizontalMatchStyle(ConstraintWidget.MATCH_CONSTRAINT_SPREAD, 0, 0, 1);
+        B.setHorizontalDimensionBehaviour(ConstraintWidget.DimensionBehaviour.MATCH_CONSTRAINT);
+        B.setHorizontalMatchStyle(ConstraintWidget.MATCH_CONSTRAINT_SPREAD, 0, 0, 1);
+        B.setDimensionRatio(0, 0);
+        A.setVisibility(ConstraintWidget.VISIBLE);
+        A.setWidth(100);
+        A.setHeight(20);
+        B.setVisibility(ConstraintWidget.VISIBLE);
+        B.setWidth(100);
+        B.setHeight(20);
+        root.layout();
+        System.out.println("j) A: " + A + " B: " + B);
+        assertEquals(A.getWidth(), B.getWidth());
+        assertEquals(A.getWidth() + B.getWidth(), root.getWidth());
+        A.setHorizontalWeight(1);
+        B.setHorizontalWeight(3);
+        root.layout();
+        System.out.println("k) A: " + A + " B: " + B);
+        assertEquals(A.getWidth() * 3, B.getWidth());
+        assertEquals(A.getWidth() + B.getWidth(), root.getWidth());
+    }
+
     @Test
     public void testSpreadChain() {
         ConstraintWidgetContainer root = new ConstraintWidgetContainer(0, 0, 600, 600);