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Java

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This commit is contained in:
Andy Street
2014-09-18 15:15:21 -07:00
parent 7eef01f299
commit 6d93c20610
33 changed files with 5457 additions and 14 deletions
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42
src/java/tests/com/facebook/csslayout/CSSNodeTest.java Normal file
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package com.facebook.csslayout;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
/**
* Tests for {@link CSSNode}.
*/
public class CSSNodeTest {
@Test
public void testAddChildGetParent() {
CSSNode parent = new CSSNode();
CSSNode child = new CSSNode();
assertNull(child.getParent());
assertEquals(0, parent.getChildCount());
parent.addChildAt(child, 0);
assertEquals(1, parent.getChildCount());
assertEquals(child, parent.getChildAt(0));
assertEquals(parent, child.getParent());
parent.removeChildAt(0);
assertNull(child.getParent());
assertEquals(0, parent.getChildCount());
}
@Test(expected = IllegalStateException.class)
public void testCannotAddChildToMultipleParents() {
CSSNode parent1 = new CSSNode();
CSSNode parent2 = new CSSNode();
CSSNode child = new CSSNode();
parent1.addChildAt(child, 0);
parent2.addChildAt(child, 0);
}
}

180
src/java/tests/com/facebook/csslayout/LayoutCachingTest.java Normal file
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package com.facebook.csslayout;
import org.junit.Test;
import static junit.framework.Assert.*;
/**
* Tests for {@link LayoutEngine} and {@link CSSNode} to make sure layouts are only generated when
* needed.
*/
public class LayoutCachingTest {
private void assertTreeHasNewLayout(boolean expectedHasNewLayout, CSSNode root) {
assertEquals(expectedHasNewLayout, root.hasNewLayout());
for (int i = 0; i < root.getChildCount(); i++) {
assertTreeHasNewLayout(expectedHasNewLayout, root.getChildAt(i));
}
}
private void markLayoutAppliedForTree(CSSNode root) {
root.markLayoutApplied();
for (int i = 0; i < root.getChildCount(); i++) {
markLayoutAppliedForTree(root.getChildAt(i));
}
}
@Test
public void testCachesFullTree() {
CSSNode root = new CSSNode();
CSSNode c0 = new CSSNode();
CSSNode c1 = new CSSNode();
CSSNode c0c0 = new CSSNode();
root.addChildAt(c0, 0);
root.addChildAt(c1, 1);
c0.addChildAt(c0c0, 0);
root.calculateLayout();
assertTreeHasNewLayout(true, root);
markLayoutAppliedForTree(root);
root.calculateLayout();
assertTreeHasNewLayout(false, root);
}
@Test
public void testInvalidatesCacheWhenChildAdded() {
CSSNode root = new CSSNode();
CSSNode c0 = new CSSNode();
CSSNode c1 = new CSSNode();
CSSNode c0c0 = new CSSNode();
CSSNode c0c1 = new CSSNode();
c0c1.setStyleWidth(200);
c0c1.setStyleHeight(200);
root.addChildAt(c0, 0);
root.addChildAt(c1, 1);
c0.addChildAt(c0c0, 0);
root.calculateLayout();
assertTreeHasNewLayout(true, root);
markLayoutAppliedForTree(root);
root.calculateLayout();
assertTreeHasNewLayout(false, root);
c0.addChildAt(c0c1, 1);
root.calculateLayout();
assertTrue(root.hasNewLayout());
assertTrue(c0.hasNewLayout());
assertTrue(c0c1.hasNewLayout());
assertFalse(c0c0.hasNewLayout());
assertFalse(c1.hasNewLayout());
}
@Test
public void testInvalidatesCacheWhenEnumPropertyChanges() {
CSSNode root = new CSSNode();
CSSNode c0 = new CSSNode();
CSSNode c1 = new CSSNode();
CSSNode c0c0 = new CSSNode();
root.addChildAt(c0, 0);
root.addChildAt(c1, 1);
c0.addChildAt(c0c0, 0);
root.calculateLayout();
assertTreeHasNewLayout(true, root);
markLayoutAppliedForTree(root);
root.calculateLayout();
assertTreeHasNewLayout(false, root);
c1.setAlignSelf(CSSAlign.CENTER);
root.calculateLayout();
assertTrue(root.hasNewLayout());
assertTrue(c1.hasNewLayout());
assertFalse(c0.hasNewLayout());
assertFalse(c0c0.hasNewLayout());
}
@Test
public void testInvalidatesCacheWhenFloatPropertyChanges() {
CSSNode root = new CSSNode();
CSSNode c0 = new CSSNode();
CSSNode c1 = new CSSNode();
CSSNode c0c0 = new CSSNode();
root.addChildAt(c0, 0);
root.addChildAt(c1, 1);
c0.addChildAt(c0c0, 0);
root.calculateLayout();
assertTreeHasNewLayout(true, root);
markLayoutAppliedForTree(root);
root.calculateLayout();
assertTreeHasNewLayout(false, root);
c1.setMarginLeft(10);
root.calculateLayout();
assertTrue(root.hasNewLayout());
assertTrue(c1.hasNewLayout());
assertFalse(c0.hasNewLayout());
assertFalse(c0c0.hasNewLayout());
}
@Test
public void testInvalidatesFullTreeWhenParentWidthChanges() {
CSSNode root = new CSSNode();
CSSNode c0 = new CSSNode();
CSSNode c1 = new CSSNode();
CSSNode c0c0 = new CSSNode();
root.addChildAt(c0, 0);
root.addChildAt(c1, 1);
c0.addChildAt(c0c0, 0);
root.calculateLayout();
assertTreeHasNewLayout(true, root);
markLayoutAppliedForTree(root);
root.calculateLayout();
assertTreeHasNewLayout(false, root);
c0.setStyleWidth(200);
root.calculateLayout();
assertTrue(root.hasNewLayout());
assertTrue(c0.hasNewLayout());
assertTrue(c0c0.hasNewLayout());
assertFalse(c1.hasNewLayout());
}
@Test
public void testDoesNotInvalidateCacheWhenPropertyIsTheSame() {
CSSNode root = new CSSNode();
CSSNode c0 = new CSSNode();
CSSNode c1 = new CSSNode();
CSSNode c0c0 = new CSSNode();
root.addChildAt(c0, 0);
root.addChildAt(c1, 1);
c0.addChildAt(c0c0, 0);
root.setStyleWidth(200);
root.calculateLayout();
assertTreeHasNewLayout(true, root);
markLayoutAppliedForTree(root);
root.calculateLayout();
assertTreeHasNewLayout(false, root);
root.setStyleWidth(200);
root.calculateLayout();
assertTreeHasNewLayout(false, root);
}
}

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src/java/tests/com/facebook/csslayout/LayoutEngineTest.java Normal file
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17
src/java/tests/com/facebook/csslayout/TestConstants.java Normal file
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package com.facebook.csslayout;
/**
* Generated constants used in {@link LayoutEngineTest}.
*/
public class TestConstants {
/** START_GENERATED **/
public static final float SMALL_WIDTH = 34.671875f;
public static final float SMALL_HEIGHT = 18f;
public static final float BIG_WIDTH = 172.421875f;
public static final float BIG_HEIGHT = 36f;
public static final float BIG_MIN_WIDTH = 100.453125f;
public static final String SMALL_TEXT = "small";
public static final String LONG_TEXT = "loooooooooong with space";
/** END_GENERATED **/
}