Add some tests

Author: LaurenzV

src/content.rs

@@ -1735,4 +1735,45 @@ mod tests {
             b"/F1 12 Tf\nBT\n[] TJ\n[(AB) 2 (CD)] TJ\nET"
         );
     }
+
+    #[test]
+    fn test_content_array_no_pretty() {
+        let mut content = Content::new_with(WriteSettings { pretty: false });
+
+        content.set_font(Name(b"F1"), 12.0);
+        content.begin_text();
+        content.show_positioned().items();
+        content
+            .show_positioned()
+            .items()
+            .show(Str(b"AB"))
+            .adjust(2.0)
+            .show(Str(b"CD"))
+            .adjust(4.0)
+            .show(Str(b"EF"));
+        content.end_text();
+
+        assert_eq!(
+            content.finish().into_vec(),
+            b"/F1 12 Tf\nBT\n[] TJ\n[(AB)2(CD)4(EF)] TJ\nET"
+        );
+    }
+    
+    // TODO: Dont' write newlines between operations if not necessary?
+
+    #[test]
+    fn test_content_dict_no_pretty() {
+        let mut content = Content::new_with(WriteSettings { pretty: false });
+
+        let mut mc = content.begin_marked_content_with_properties(Name(b"Test"));
+        let mut properties = mc.properties();
+        properties.actual_text(TextStr("Actual")).identify(1);
+        properties.artifact().kind(ArtifactType::Background);
+        mc.finish();
+
+        assert_eq!(
+            content.finish().into_vec(),
+            b"/Test<</ActualText(Actual)/MCID 1/Type/Background>> BDC"
+        );
+    }
 }

src/object.rs

@@ -356,6 +356,11 @@ fn is_regular_character(byte: u8) -> bool {
     )
 }
 
+#[inline]
+fn is_delimiter_character(byte: u8) -> bool {
+    matches!(byte, b'(' | b')' | b'<' | b'>' | b'[' | b']' | b'/' | b'%')
+}
+
 /// The null object.
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
 pub struct Null;
@@ -646,7 +651,9 @@ impl<'a> Obj<'a> {
     /// Write a primitive object.
     #[inline]
     pub fn primitive<T: Primitive>(self, value: T) {
-        if self.needs_padding && !T::HAS_DELIMITER {
+        let ends_with_delimiter = self.buf.last().copied().is_some_and(is_delimiter_character);
+        
+        if self.needs_padding && !T::HAS_DELIMITER && !ends_with_delimiter {
             self.buf.extend(b" ");
         }