replace π, more tests

src/compiler.rs

@@ -437,7 +437,7 @@ impl Compiler {
 
 #[cfg(test)]
 mod tests {
-    use crate::compiler::{Compiler, Expression, SAMPLE_RATE, Silence};
+    use crate::compiler::{Compiler, Expression, Note, SAMPLE_RATE, Silence};
 
     use super::{CompilerError, Context};
 
@@ -464,7 +464,7 @@ mod tests {
     }
 
     #[test]
-    fn silence() -> Result<(), CompilerError> {
+    fn silence_renders_correct_amount_of_samples() -> Result<(), CompilerError> {
         assert_eq!(
             SAMPLE_RATE as usize,
             Compiler::from(context_generator())
@@ -475,4 +475,30 @@ mod tests {
         );
         Ok(())
     }
+
+    #[test]
+    fn silence_renders_zeros() -> Result<(), CompilerError> {
+        assert!(
+            Compiler::from(context_generator())
+                .apply_all(vec![Silence])?
+                .0
+                .result
+                .into_iter()
+                .all(|s| s == 0f64)
+        );
+        Ok(())
+    }
+
+    #[test]
+    fn note_renders_correct_amount_of_samples() -> Result<(), CompilerError> {
+        assert_eq!(
+            SAMPLE_RATE as usize,
+            Compiler::from(context_generator())
+                .apply_all(vec![Note(2)])?
+                .0
+                .result
+                .len()
+        );
+        Ok(())
+    }
 }