Add jinja tests and ignore jinja blocks spanning multiple lines

dprint_plugin/tests/integration/biome/basic.vue.snap

@@ -30,13 +30,11 @@ function greet(msg: string) {
       close();
     '
   />
-  <div
-    :style="
-      {
-        height: '200px',
-        /* position: relative; */
-      }
-    "
-  >
+  <div :style="
+    {
+      height: '200px',
+      /* position: relative; */
+    }
+  ">
   </div>
 </template>

dprint_plugin/tests/integration/dprint_ts/basic.vue.snap

@@ -30,13 +30,11 @@ function greet(msg: string) {
       close();
     '
   />
-  <div
-    :style="
-      {
-        'height': '200px',
-        /* position: relative; */
-      }
-    "
-  >
+  <div :style="
+    {
+      'height': '200px',
+      /* position: relative; */
+    }
+  ">
   </div>
 </template>

markup_fmt/src/printer.rs

@@ -455,8 +455,17 @@ impl<'s> DocGen<'s> for Element<'s> {
         docs.push(Doc::text(formatted_tag_name.clone()));
 
         match self.attrs.as_slice() {
-            [single_attr] if !is_whitespace_sensitive => {
-                // Try to avoid breaking on multiple lines for a single attribute.
+            [single_attr]
+                if !is_whitespace_sensitive
+                    && !matches!(
+                        single_attr,
+                        Attribute::JinjaBlock(..)
+                            | Attribute::JinjaTag(..)
+                            | Attribute::VentoTagOrBlock(..)
+                    ) =>
+            {
+                // Avoid breaking on multiple lines for a single attribute in non whitespace sensitive context.
+                // Skip this for templating Blocks because they usually span across multiple lines.
                 docs.push(Doc::space());
                 docs.push(single_attr.doc(ctx, &state));
 
@@ -515,7 +524,6 @@ impl<'s> DocGen<'s> for Element<'s> {
                     )
                     .nest(ctx.indent_width)
                 };
-
 
                 if self.void_element {
                     docs.push(attrs);

markup_fmt/tests/fmt/jinja/attributes/single-attr.jinja

@@ -0,0 +1,23 @@
+<tr {% if targeted_fooo and not foo_bar_bar_bar == mykey %} class="collapse"{% endif %}></tr>
+
+<div
+    {% if not line.fields|length_is:'1' %}
+        class="field-box{% if field.field.name %}
+            field-{{ field.field.name }}{% endif %}{% if not field.is_readonly and field.errors %}
+            errors{% endif %}{% if field.field.is_hidden %}
+            hidden{% endif %}"{% elif field.is_checkbox %}
+        class="checkbox-row"
+    {% endif %}
+></div>
+
+<picture
+    {% for key, val in attributes.items %}
+        {{ key }}="{{ val }}"
+    {% endfor %}
+></picture>
+
+<div
+    {% if field.field.causes_red_card %}data-red-card{%
+        elif field.field.causes_yellow_card
+    %}data-yellow-card{% endif %}
+></div>

markup_fmt/tests/fmt/jinja/attributes/single-attr.snap

@@ -0,0 +1,39 @@
+---
+source: markup_fmt/tests/fmt.rs
+---
+<tr
+  {% if targeted_fooo and not foo_bar_bar_bar == mykey %}
+    class="collapse"
+  {% endif %}
+>
+</tr>
+
+<div
+  {% if not line.fields|length_is:'1' %}
+    class="
+      field-box{% if field.field.name %}
+      field-{{ field.field.name }}{% endif %}{% if not field.is_readonly and field.errors %}
+      errors{% endif %}{% if field.field.is_hidden %}
+      hidden{% endif %}
+    "
+  {% elif field.is_checkbox %}
+    class="checkbox-row"
+  {% endif %}
+>
+</div>
+
+<picture
+  {% for key, val in attributes.items %}
+    {{ key }}="{{ val }}"
+  {% endfor %}
+>
+</picture>
+
+<div
+  {% if field.field.causes_red_card %}
+    data-red-card
+  {% elif field.field.causes_yellow_card %}
+    data-yellow-card
+  {% endif %}
+>
+</div>

markup_fmt/tests/fmt/jinja/attributes/tag-or-block-as-attr.snap

@@ -1,6 +1,5 @@
 ---
 source: markup_fmt/tests/fmt.rs
-snapshot_kind: text
 ---
 <div
   {% if colored_with_absolute_dates %}
@@ -33,9 +32,7 @@ snapshot_kind: text
   {% endif %}
 />
 
-<details {% if category %}
-  open
-{% endif %}>
+<details {% if category %}open{% endif %}>
   <summary>Details</summary>
   Something small enough to escape casual notice.
 </details>
@@ -144,12 +141,14 @@ snapshot_kind: text
   {% endif %}
 {% endfor %}
 
-<picture {% for key, val in attributes.items %}
-  {{ key }}{{ key }}="{{ val }}"
-  data-{{ key }}{{ key }}="{{ val }}"
-  {{ key }}-{{ key }}="{{ val }}"
-  data-{{ key }}-{{ key }}="{{ val }}"
-  {{ key }}="{{ val }}"
-  data-{{ key }}="{{ val }}"
-{% endfor %}>
+<picture
+  {% for key, val in attributes.items %}
+    {{ key }}{{ key }}="{{ val }}"
+    data-{{ key }}{{ key }}="{{ val }}"
+    {{ key }}-{{ key }}="{{ val }}"
+    data-{{ key }}-{{ key }}="{{ val }}"
+    {{ key }}="{{ val }}"
+    data-{{ key }}="{{ val }}"
+  {% endfor %}
+>
 </picture>