@Test
public void test_children_when_one_child() {
AstNodeType type1 = mock(AstNodeType.class);
AstNodeType type2 = mock(AstNodeType.class);
AstNode child = mock(AstNode.class);
when(node.getNumberOfChildren()).thenReturn(1);
when(node.getFirstChild()).thenReturn(child);
AstSelect children = select.children();
assertThat((Object) children).isInstanceOf(SingleAstSelect.class);
assertThat(children).containsOnly(child);
when(node.getChildren()).thenReturn(ImmutableList.of(child));
children = select.children(type1);
assertThat((Object) children).isSameAs(AstSelectFactory.empty());
when(child.getType()).thenReturn(type1);
children = select.children(type1);
assertThat((Object) children).isInstanceOf(SingleAstSelect.class);
assertThat(children).containsOnly(child);
children = select.children(type1, type2);
assertThat((Object) children).isSameAs(AstSelectFactory.empty());
when(child.is(type1, type2)).thenReturn(true);
children = select.children(type1, type2);
assertThat((Object) children).isInstanceOf(SingleAstSelect.class);
assertThat(children).containsOnly(child);
}
@Test
public void test_descendants() {
assertThat((Object) select.descendants(mock(AstNodeType.class)))
.isSameAs(AstSelectFactory.empty());
assertThat((Object) select.descendants(mock(AstNodeType.class), mock(AstNodeType.class)))
.isSameAs(AstSelectFactory.empty());
}
@Test
public void test_children_when_no_children() {
assertThat((Object) select.children()).isSameAs(AstSelectFactory.empty());
assertThat((Object) select.children(mock(AstNodeType.class)))
.isSameAs(AstSelectFactory.empty());
assertThat((Object) select.children(mock(AstNodeType.class), mock(AstNodeType.class)))
.isSameAs(AstSelectFactory.empty());
}
@Test
public void test_filter() {
Predicate<AstNode> predicate = mock(Predicate.class);
assertThat((Object) select.filter(predicate)).isSameAs(AstSelectFactory.empty());
when(predicate.apply(node)).thenReturn(true);
assertThat((Object) select.filter(predicate)).isSameAs(select);
}
@Test
public void test_filter_by_type() {
AstNodeType type = mock(AstNodeType.class);
assertThat((Object) select.filter(type)).isSameAs(AstSelectFactory.empty());
when(node.getType()).thenReturn(type);
assertThat((Object) select.filter(type)).isSameAs(select);
}
@Test
public void test_parent() {
assertThat((Object) select.parent()).isSameAs(AstSelectFactory.empty());
AstNode parent = mock(AstNode.class);
when(node.getParent()).thenReturn(parent);
assertThat((Object) select.parent()).isInstanceOf(SingleAstSelect.class);
assertThat(select.parent()).containsOnly(parent);
}
@Test
public void test_previousSibling() {
assertThat((Object) select.previousSibling()).isSameAs(AstSelectFactory.empty());
AstNode sibling = mock(AstNode.class);
when(node.getPreviousSibling()).thenReturn(sibling);
assertThat((Object) select.previousSibling()).isInstanceOf(SingleAstSelect.class);
assertThat(select.previousSibling()).containsOnly(sibling);
}
@Test
public void test_firstAncestor_by_type() {
AstNodeType type = mock(AstNodeType.class);
assertThat((Object) select.firstAncestor(type)).isSameAs(AstSelectFactory.empty());
AstNode parent = mock(AstNode.class);
when(node.getParent()).thenReturn(parent);
AstNode ancestor = mock(AstNode.class);
when(ancestor.getType()).thenReturn(type);
when(parent.getParent()).thenReturn(ancestor);
assertThat((Object) select.firstAncestor(type)).isInstanceOf(SingleAstSelect.class);
assertThat(select.firstAncestor(type)).containsOnly(ancestor);
}