Render tests: the live object tests take the font locks (#1688)

crates/render/src/tests_fontchange.rs

@@ -111,6 +111,7 @@ fn symbol_type_redraws_when_its_font_becomes_available() {
 /// fonts change.
 #[test]
 fn enveloped_type_redraws_when_its_font_becomes_available() {
+    let _adding = adding_fonts();
     const FAMILY: &str = "Warped Serif 4";
     let mut d = Document::new(300.0, 150.0);
     let word = |d: &mut Document, at: Point| {
@@ -150,6 +151,7 @@ fn enveloped_type_redraws_when_its_font_becomes_available() {
 /// envelope in a group with a geometry effect or with a fill of its own.
 #[test]
 fn enveloped_type_under_effects_redraws_when_its_font_becomes_available() {
+    let _adding = adding_fonts();
     use vectorcraft_color::{Color, Paint};
     use vectorcraft_doc::{AppearanceItem, Effect, FillLayer};
     let cases = [

crates/render/src/tests_memory.rs

@@ -627,6 +627,7 @@ fn arc_envelope(d: &mut Document, content: Vec<Node>, patterns: bool) -> Node {
 /// pattern, and type whose characters are filled with it.
 #[test]
 fn live_objects_draw_pattern_layout_edits() {
+    let _fonts = fonts_steady();
     use vectorcraft_doc::pattern::{Overlap, PatternDef, TileType, pattern_paint};
     use vectorcraft_doc::text::{CharStyle, TextObject};
     use vectorcraft_geom::shapes::rectangle;
@@ -672,6 +673,7 @@ fn live_objects_draw_pattern_layout_edits() {
 /// the art of the symbol it bends and a symbol in the art of a pattern it tiles.
 #[test]
 fn live_objects_draw_symbol_and_pattern_art_edits() {
+    let _fonts = fonts_steady();
     use vectorcraft_doc::pattern::{PatternDef, TileType, pattern_paint};
     use vectorcraft_geom::shapes::rectangle;
     // Symbol `S` ([`symbol_art`]) becomes a wide red bar.