tests: Add stage_object_properties test

core/tests/regression_tests.rs

@@ -2,7 +2,7 @@
 //!
 //! Trace output can be compared with correct output from the official Flash Payer.
 
-use approx::abs_diff_eq;
+use approx::assert_abs_diff_eq;
 use log::{Metadata, Record};
 use ruffle_core::backend::{
     audio::NullAudioBackend, navigator::NullNavigatorBackend, render::NullRenderer,
@@ -111,19 +111,23 @@ fn test_stage_object_enumerate() -> Result<(), Error> {
 
 #[test]
 fn test_stage_object_properties() -> Result<(), Error> {
-    let trace_log = run_swf("tests/swfs/avm1/stage_object_properties/test.swf", 1)?;
-    let actual: Vec<f64> = trace_log
-        .lines()
-        .map(|s| str::parse::<f64>(s).unwrap())
-        .collect();
-    let expected: Vec<f64> =
-        std::fs::read_to_string("tests/swfs/avm1/stage_object_properties/output.txt")?
-            .lines()
-            .map(|s| str::parse::<f64>(s).unwrap())
-            .collect();
+    let trace_log = run_swf("tests/swfs/avm1/stage_object_properties/test.swf", 4)?;
+    let expected_data =
+        std::fs::read_to_string("tests/swfs/avm1/stage_object_properties/output.txt")?;
+    assert_eq!(
+        trace_log.lines().count(),
+        expected_data.lines().count(),
+        "# of lines of output didn't match"
+    );
 
-    for (actual, expected) in actual.into_iter().zip(expected.into_iter()) {
-        abs_diff_eq!(actual, expected, epsilon = 0.0001);
+    for (actual, expected) in trace_log.lines().zip(expected_data.lines()) {
+        // If these are numbers, compare using approx_eq.
+        if let (Ok(actual), Ok(expected)) = (actual.parse::<f64>(), expected.parse::<f64>()) {
+            // TODO: Lower this epsilon as the accuracy of the properties improves.
+            assert_abs_diff_eq!(actual, expected, epsilon = 0.5);
+        } else {
+            assert_eq!(actual, expected);
+        }
     }
     Ok(())
 }

core/tests/swfs/avm1/stage_object_properties/output.txt

@@ -0,0 +1,80 @@
+Starting properties:
+289.25
+202.1
+805.95
+656.75
+-162.038711547852
+249.484237591759
+301.023390825966
+100
+true
+Setting with SetMember...
+Final properties:
+123
+321
+673.2
+515.45
+27
+-321
+123
+50
+false
+Starting properties:
+123
+321
+673.2
+515.45
+27
+-321
+123
+50
+false
+Setting with SetProperty...
+Final properties:
+100
+200
+153.3
+882
+90
+345
+-123
+25
+true
+Testing ranges...
+_x:
+_y:
+_rotation:
+90
+180
+-179
+-180
+179
+_xscale:
+345
+_yscale:
+-123
+_scale:
+-123
+_alpha:
+25
+_currentframe:
+1
+_totalframes:
+1
+Testing width/height...
+370.05
+108.1
+54.0467504391298
+100
+200.05
+108.1
+54.0467504391298
+54.05
+92.5
+200
+100
+25
+92.5
+50
+24.9966220780976
+25