From 2049c85a6cda69f54ed4657199f888e8be513328 Mon Sep 17 00:00:00 2001
From: Sidharth Guglani <sidharthguglani@fb.com>
Date: Wed, 1 Apr 2020 14:37:45 -0700
Subject: [PATCH] Unit tests for flexshrink min width cases

Reviewed By: pasqualeanatriello

Differential Revision: D20219428

fbshipit-source-id: 8cbd028627095d9f7b393489ddba1f31c3207b67
---
 tests/YGFlexTest.cpp | 118 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)

diff --git a/tests/YGFlexTest.cpp b/tests/YGFlexTest.cpp
index 21c7578d..ab6dec76 100644
--- a/tests/YGFlexTest.cpp
+++ b/tests/YGFlexTest.cpp
@@ -605,3 +605,121 @@ TEST(YogaTest, flex_grow_less_than_factor_one) {
 
   YGConfigFree(config);
 }
+
+TEST(YogaTest, flex_shrink_min_width) {
+  const YGConfigRef config = YGConfigNew();
+  YGConfigSetUseWebDefaults(config, true);
+
+  const YGNodeRef root = YGNodeNewWithConfig(config);
+  YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow);
+  YGNodeStyleSetWidth(root, 500);
+  YGNodeStyleSetHeight(root, 500);
+
+  const YGNodeRef root_child0 = YGNodeNewWithConfig(config);
+  YGNodeStyleSetFlexDirection(root_child0, YGFlexDirectionRow);
+  YGNodeStyleSetWidth(root_child0, 100);
+  YGNodeStyleSetMinWidth(root_child0, 301);
+  YGNodeStyleSetHeight(root_child0, 100);
+  YGNodeInsertChild(root, root_child0, 0);
+
+  const YGNodeRef root_child1 = YGNodeNewWithConfig(config);
+  YGNodeStyleSetFlexDirection(root_child1, YGFlexDirectionRow);
+  YGNodeStyleSetWidth(root_child1, 100);
+  YGNodeStyleSetMinWidth(root_child1, 25);
+  YGNodeStyleSetHeight(root_child1, 100);
+  YGNodeInsertChild(root, root_child1, 1);
+
+  const YGNodeRef root_child2 = YGNodeNewWithConfig(config);
+  YGNodeStyleSetFlexDirection(root_child2, YGFlexDirectionRow);
+  YGNodeStyleSetWidth(root_child2, 100);
+  YGNodeStyleSetHeight(root_child2, 100);
+  YGNodeInsertChild(root, root_child2, 2);
+
+  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
+
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
+  ASSERT_FLOAT_EQ(500, YGNodeLayoutGetWidth(root));
+  ASSERT_FLOAT_EQ(500, YGNodeLayoutGetHeight(root));
+
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root_child0));
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child0));
+  ASSERT_FLOAT_EQ(301, YGNodeLayoutGetWidth(root_child0));
+  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetHeight(root_child0));
+
+  ASSERT_FLOAT_EQ(301, YGNodeLayoutGetLeft(root_child1));
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child1));
+  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetWidth(root_child1));
+  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetHeight(root_child1));
+
+  ASSERT_FLOAT_EQ(401, YGNodeLayoutGetLeft(root_child2));
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child2));
+  ASSERT_FLOAT_EQ(99, YGNodeLayoutGetWidth(root_child2));
+  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetHeight(root_child2));
+
+  YGNodeFreeRecursive(root);
+
+  YGConfigFree(config);
+}
+
+TEST(YogaTest, flex_shrink_flex_grow_min_width) {
+  const YGConfigRef config = YGConfigNew();
+  YGConfigSetUseWebDefaults(config, true);
+
+  const YGNodeRef root = YGNodeNewWithConfig(config);
+  YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow);
+  YGNodeStyleSetWidth(root, 500);
+  YGNodeStyleSetHeight(root, 500);
+
+  const YGNodeRef root_child0 = YGNodeNewWithConfig(config);
+  YGNodeStyleSetFlexDirection(root_child0, YGFlexDirectionRow);
+  YGNodeStyleSetFlexGrow(root_child0, 0);
+  YGNodeStyleSetFlexShrink(root_child0, 1);
+  YGNodeStyleSetWidth(root_child0, 100);
+  YGNodeStyleSetMinWidth(root_child0, 301);
+  YGNodeStyleSetHeight(root_child0, 100);
+  YGNodeInsertChild(root, root_child0, 0);
+
+  const YGNodeRef root_child1 = YGNodeNewWithConfig(config);
+  YGNodeStyleSetFlexDirection(root_child1, YGFlexDirectionRow);
+  YGNodeStyleSetFlexGrow(root_child1, 1);
+  YGNodeStyleSetFlexShrink(root_child1, 1);
+  YGNodeStyleSetWidth(root_child1, 100);
+  YGNodeStyleSetMinWidth(root_child1, 25);
+  YGNodeStyleSetHeight(root_child1, 100);
+  YGNodeInsertChild(root, root_child1, 1);
+
+  const YGNodeRef root_child2 = YGNodeNewWithConfig(config);
+  YGNodeStyleSetFlexDirection(root_child2, YGFlexDirectionRow);
+  YGNodeStyleSetWidth(root_child2, 100);
+  YGNodeStyleSetHeight(root_child2, 100);
+  YGNodeStyleSetFlexShrink(root_child2, 1);
+  YGNodeStyleSetFlexGrow(root_child2, 1);
+  YGNodeInsertChild(root, root_child2, 2);
+
+  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
+
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
+  ASSERT_FLOAT_EQ(500, YGNodeLayoutGetWidth(root));
+  ASSERT_FLOAT_EQ(500, YGNodeLayoutGetHeight(root));
+
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root_child0));
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child0));
+  ASSERT_FLOAT_EQ(301, YGNodeLayoutGetWidth(root_child0));
+  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetHeight(root_child0));
+
+  ASSERT_FLOAT_EQ(301, YGNodeLayoutGetLeft(root_child1));
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child1));
+  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetWidth(root_child1));
+  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetHeight(root_child1));
+
+  ASSERT_FLOAT_EQ(401, YGNodeLayoutGetLeft(root_child2));
+  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child2));
+  ASSERT_FLOAT_EQ(99, YGNodeLayoutGetWidth(root_child2));
+  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetHeight(root_child2));
+
+  YGNodeFreeRecursive(root);
+
+  YGConfigFree(config);
+}