Set Rules Episode V: The Tests Strike Back

src/eval/node.rs

@@ -280,11 +280,11 @@ impl NodePacker {
 
     /// Advance to the next paragraph.
     fn parbreak(&mut self, break_styles: Option<Styles>) {
+        let styles = break_styles.unwrap_or_else(|| self.par_styles.clone());
         self.finish_par();
 
         // Insert paragraph spacing.
-        self.flow_last
-            .soft(FlowChild::Parbreak(break_styles.unwrap_or_default()));
+        self.flow_last.soft(FlowChild::Parbreak(styles));
     }
 
     fn finish_par(&mut self) {

tests/README.md

@@ -15,9 +15,19 @@ Running the integration tests (the tests in this directory).
 cargo test --test typeset
 ```
 
-Running all tests whose names contain the word `filter`.
+Running all tests whose paths contain the string `page` or `stack`.
 ```bash
-cargo test --test typeset filter
+cargo test --test typeset page stack
+```
+
+Running a test with the exact filename `page.typ`.
+```bash
+cargo test --test typeset -- --exact page.typ
+```
+
+Debug-printing the layout trees for all executed tests.
+```bash
+cargo test --test typeset -- --debug empty.typ
 ```
 
 To make the integration tests go faster they don't generate PDFs by default.
@@ -39,3 +49,24 @@ oxipng -o max path/to/image.png
 # All images
 oxipng -r -o max tests/ref
 ```
+
+## Shorthand for running tests
+If you want to have a quicker way to run the tests, consider adding a shortcut
+to your shell profile so that you can simply write something like:
+```bash
+tests --debug empty.typ
+```
+
+### PowerShell
+Open your PowerShell profile by executing `notepad $profile`.
+```ps
+function tests {
+    cargo test --test typeset -- $args
+}
+```
+
+### Bash
+Open your Bash configuration by executing `nano ~/.bashrc`.
+```bash
+alias tests="cargo test --test typeset --"
+```

tests/typ/code/ops-invalid.typ

@@ -26,7 +26,7 @@
 {not ()}
 
 ---
-// Error: 2-18 cannot apply '<=' to linear and relative
+// Error: 2-18 cannot apply '<=' to relative length and relative
 {30% + 1pt <= 40%}
 
 ---

tests/typ/code/ops.typ

@@ -64,7 +64,7 @@
   }
 
   // Linears cannot be divided by themselves.
-  if type(v) != "linear" {
+  if type(v) != "relative length" {
     test(v / v, 1.0)
     test(v / v == 1, true)
   }
@@ -130,12 +130,14 @@
 #test(test == test, true)
 #test((() => {}) == (() => {}), false)
 
-// Templates also compare by identity.
+// Templates compare by shallow equality.
 #let t = [a]
 #test(t == t, true)
-#test([] == [], false)
+#test([] == [], true)
+#test([a] == [a], true)
 #test([] == [a], false)
-#test([a] == [a], false)
+#test([[a]] == [a], false)
+#test(box[] == box[], false)
 
 ---
 // Test comparison operators.

tests/typ/coma.typ

@@ -8,7 +8,8 @@ Ola Nordmann, John Doe
 
 #v(6mm)
 #align(center)[
-  ==== 3. Übungsblatt Computerorientierte Mathematik II #v(4mm)
+  ==== 3. Übungsblatt Computerorientierte Mathematik II
+  #v(4mm)
   *Abgabe: 03.05.2019* (bis 10:10 Uhr in MA 001) #v(4mm)
   *Alle Antworten sind zu beweisen.*
 ]

tests/typ/layout/background.typ

@@ -1,7 +1,7 @@
 // Test placing a background image on a page.
 
 ---
-#page(paper: "a10", flip: true)
+#page(paper: "a10", flipped: true)
 #font(fill: white)
 #place(
   dx: -10pt,

tests/typ/layout/page.typ

@@ -24,7 +24,7 @@
 [#page(margins: 0pt, left: 20pt) Overriden]
 
 // Flipped predefined paper.
-[#page(paper: "a11", flip: true) Flipped A11]
+[#page(paper: "a11", flipped: true) Flipped A11]
 
 ---
 #page(width: 80pt, height: 40pt, fill: eastern)

tests/typ/layout/pagebreak.typ

@@ -4,6 +4,7 @@
 First of two
 #pagebreak()
 #page(height: 40pt)
+Second of two
 
 ---
 // Make sure that you can't do page related stuff in a container.
@@ -24,11 +25,11 @@ D
 
 #page(width: 80pt, height: 30pt)
 
-[#page() First]
-[#page() Second]
+Fi[#page(width: 80pt)rst]
+[#page(width: 70pt) Second]
 #pagebreak()
 #pagebreak()
 Fourth
-[#page(height: 25pt)]
+#page(height: 20pt)[]
 Sixth
 [#page() Seventh]

tests/typ/text/links.typ

@@ -20,3 +20,10 @@ You could also make the #link("https://html5zombo.com/")[link look way more typi
 #page(height: 60pt)
 #let link = link("https://typst.app/")[LINK]
 My cool #move(x: 0.7cm, y: 0.7cm, rotate(10deg, scale(200%, link)))
+
+---
+// Link containing a block.
+#link("https://example.com/", block[
+  My cool rhino
+  #move(x: 10pt, image("../../res/rhino.png", width: 1cm))
+])

tests/typ/text/par.typ

@@ -5,6 +5,23 @@
 #par(align: right)
 To the right! Where the sunlight peeks behind the mountain.
 
+---
+// Test that explicit paragraph break respects active styles.
+#par(spacing: 7pt)
+[#par(spacing: 100pt) First]
+
+[#par(spacing: 100pt) Second]
+#par(spacing: 20pt)
+
+Third
+
+---
+// Test that paragraph break due to incompatibility respects
+// spacing defined by the two adjacent paragraphs.
+#let a = [#par(spacing: 40pt) Hello]
+#let b = [#par(spacing: 60pt) World]
+{a}{b}
+
 ---
 // Test weird metrics.
 #par(spacing: 100%, leading: 0pt)

tests/typeset.rs

@@ -49,7 +49,7 @@ fn main() {
             continue;
         }
 
-        if args.matches(&src_path.to_string_lossy()) {
+        if args.matches(&src_path) {
             filtered.push(src_path);
         }
     }
@@ -106,6 +106,7 @@ fn main() {
             &png_path,
             &ref_path,
             pdf_path.as_deref(),
+            args.debug,
         ) as usize;
     }
 
@@ -120,33 +121,43 @@ fn main() {
 
 struct Args {
     filter: Vec<String>,
+    exact: bool,
+    debug: bool,
     pdf: bool,
-    perfect: bool,
 }
 
 impl Args {
     fn new(args: impl Iterator<Item = String>) -> Self {
         let mut filter = Vec::new();
-        let mut perfect = false;
+        let mut exact = false;
+        let mut debug = false;
         let mut pdf = false;
 
         for arg in args {
             match arg.as_str() {
+                // Ignore this, its for cargo.
                 "--nocapture" => {}
+                // Match only the exact filename.
+                "--exact" => exact = true,
+                // Generate PDFs.
                 "--pdf" => pdf = true,
-                "=" => perfect = true,
+                // Debug print the layout trees.
+                "--debug" | "-d" => debug = true,
+                // Everything else is a file filter.
                 _ => filter.push(arg),
             }
         }
 
-        Self { filter, pdf, perfect }
+        Self { filter, pdf, debug, exact }
     }
 
-    fn matches(&self, name: &str) -> bool {
-        if self.perfect {
-            self.filter.iter().any(|p| name == p)
+    fn matches(&self, path: &Path) -> bool {
+        if self.exact {
+            let name = path.file_name().unwrap().to_string_lossy();
+            self.filter.iter().any(|v| v == &name)
         } else {
-            self.filter.is_empty() || self.filter.iter().any(|p| name.contains(p))
+            let path = path.to_string_lossy();
+            self.filter.is_empty() || self.filter.iter().any(|v| path.contains(v))
         }
     }
 }
@@ -157,6 +168,7 @@ fn test(
     png_path: &Path,
     ref_path: &Path,
     pdf_path: Option<&Path>,
+    debug: bool,
 ) -> bool {
     let name = src_path.strip_prefix(TYP_DIR).unwrap_or(src_path);
     println!("Testing {}", name.display());
@@ -185,7 +197,7 @@ fn test(
             }
         } else {
             let (part_ok, compare_here, part_frames) =
-                test_part(ctx, src_path, part.into(), i, compare_ref, line);
+                test_part(ctx, src_path, part.into(), i, compare_ref, line, debug);
             ok &= part_ok;
             compare_ever |= compare_here;
             frames.extend(part_frames);
@@ -217,7 +229,10 @@ fn test(
     }
 
     if ok {
-        println!("\x1b[1ATesting {} ✔", name.display());
+        if !debug {
+            print!("\x1b[1A");
+        }
+        println!("Testing {} ✔", name.display());
     }
 
     ok
@@ -230,6 +245,7 @@ fn test_part(
     i: usize,
     compare_ref: bool,
     line: usize,
+    debug: bool,
 ) -> (bool, bool, Vec<Rc<Frame>>) {
     let id = ctx.sources.provide(src_path, src);
     let source = ctx.sources.get(id);
@@ -240,7 +256,10 @@ fn test_part(
     let mut ok = true;
     let (frames, mut errors) = match ctx.execute(id) {
         Ok(document) => {
-            // dbg!(&document);
+            if debug {
+                println!("{:#?}", document);
+            }
+
             let mut frames = layout(ctx, &document);
 
             #[cfg(feature = "layout-cache")]