diff --git a/src/tests/libs/alm/Areas.cpp b/src/tests/libs/alm/Areas.cpp
index 8b21b7cbc2..7297f8cc2e 100644
--- a/src/tests/libs/alm/Areas.cpp
+++ b/src/tests/libs/alm/Areas.cpp
@@ -17,6 +17,9 @@ public:
 		button3 = new BButton("3");
 		button4 = new BButton("4");
 
+		button1->SetExplicitMinSize(BSize(0, 0));
+		button1->SetExplicitMaxSize(BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED));
+
 		// create a new BALMLayout and use  it for this window
 		BALMLayout* layout = new BALMLayout();
 		SetLayout(layout);
@@ -45,6 +48,7 @@ public:
 			layout->Right(), y3,
 			button3);
 		a3->SetHorizontalAlignment(B_ALIGN_HORIZONTAL_CENTER);
+		a3->SetVerticalAlignment(B_ALIGN_VERTICAL_CENTER);
 		a3->HasSameHeightAs(a1);
 
 		Area* a4 = layout->AddArea(
diff --git a/src/tests/libs/alm/HelloWorld.cpp b/src/tests/libs/alm/HelloWorld.cpp
index 38a4752e9d..e9600cfce6 100644
--- a/src/tests/libs/alm/HelloWorld.cpp
+++ b/src/tests/libs/alm/HelloWorld.cpp
@@ -28,6 +28,13 @@ public:
 			fLayout->Left(), fLayout->Top(), 
 			fLayout->Right(), fLayout->Bottom(),
 			button1);
+		button1->SetExplicitMinSize(BSize(0, 50));
+		button1->SetExplicitMaxSize(BSize(500, 500));
+
+		// test size limits
+		BSize min = fLayout->MinSize();
+		BSize max = fLayout->MaxSize();
+		SetSizeLimits(min.Width(), max.Width(), min.Height(), max.Height());
 	}
 	
 private:
diff --git a/src/tests/libs/alm/Pinwheel.cpp b/src/tests/libs/alm/Pinwheel.cpp
index 8f589463c8..cacb25d6c8 100644
--- a/src/tests/libs/alm/Pinwheel.cpp
+++ b/src/tests/libs/alm/Pinwheel.cpp
@@ -24,6 +24,15 @@ public:
 		textView1 = new BTextView("textView1");
 		textView1->SetText("5");	
 
+		button1->SetExplicitMinSize(BSize(0, 0));
+		button1->SetExplicitMaxSize(BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED));
+		button2->SetExplicitMinSize(BSize(0, 0));
+		button2->SetExplicitMaxSize(BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED));
+		button3->SetExplicitMinSize(BSize(0, 0));
+		button3->SetExplicitMaxSize(BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED));
+		button4->SetExplicitMinSize(BSize(0, 0));
+		button4->SetExplicitMaxSize(BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED));
+
 		// create a new BALMLayout and use  it for this window
 		BALMLayout* layout = new BALMLayout();
 		SetLayout(layout);
diff --git a/src/tests/libs/alm/TwoViews.cpp b/src/tests/libs/alm/TwoViews.cpp
index 91f5cb8c25..883f56cf02 100644
--- a/src/tests/libs/alm/TwoViews.cpp
+++ b/src/tests/libs/alm/TwoViews.cpp
@@ -14,6 +14,9 @@ public:
 		BWindow(frame, "ALM Two Views", B_TITLED_WINDOW, B_QUIT_ON_WINDOW_CLOSE)
 	{
 		button1 = new BButton("View 1");
+		button1->SetExplicitMinSize(BSize(0, 0));
+		button1->SetExplicitMaxSize(BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED));
+
 		textView1 = new BTextView("textView1");
 		textView1->SetText("View 2");