widgets tests: Also test with the interpreter

tests/cases/widgets/slider_default_value.slint

@@ -6,17 +6,17 @@ import { Slider } from "std-widgets.slint";
 export component TestCase inherits Window {
     width: 100px;
     height: 100px;
-    
+
     slider_min_pos := Slider {
         minimum: 10;
         maximum: 100;
     }
     out property <float> pos-val <=> slider-min-pos.value;
-    
+
     slider_min_default := Slider {
         maximum: 100;
     }
-    out property <float> default-min <=> slider-min-default.minimum;    
+    out property <float> default-min <=> slider-min-default.minimum;
     out property <float> default-val <=> slider-min-default.value;
 
     slider_min_neg := Slider {
@@ -24,6 +24,8 @@ export component TestCase inherits Window {
         maximum: 100;
     }
     out property <float> neg-val <=> slider-min-neg.value;
+
+    out property <bool> test: pos-val == 10 && default-min == 0 && default-val == 0 && neg-val == -10;
 }
 
 

tests/driver/driverlib/lib.rs

@@ -14,10 +14,16 @@ pub struct TestCase {
 impl TestCase {
     /// Return a string which is a valid C++/Rust identifier
     pub fn identifier(&self) -> String {
-        self.relative_path
+        let mut result = self
+            .relative_path
             .with_extension("")
             .to_string_lossy()
-            .replace([std::path::MAIN_SEPARATOR, '-'], "_")
+            .replace([std::path::MAIN_SEPARATOR, '-'], "_");
+        if let Some(requested_style) = &self.requested_style {
+            result.push_str("_");
+            result.push_str(requested_style);
+        }
+        result
     }
 
     /// Returns true if the test case should be ignored for the specified driver.

tests/driver/interpreter/build.rs

@@ -9,10 +9,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     let mut tests_file = std::fs::File::create(&tests_file_path)?;
 
-    for testcase in test_driver_lib::collect_test_cases("cases")?.into_iter().filter(|testcase| {
-        // Style testing not supported yet
-        testcase.requested_style.is_none()
-    }) {
+    for testcase in test_driver_lib::collect_test_cases("cases")?.into_iter() {
         let test_function_name = testcase.identifier();
         let ignored = testcase.is_ignored("interpreter");
 
@@ -25,7 +22,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
                 interpreter::test(&test_driver_lib::TestCase{{
                     absolute_path: std::path::PathBuf::from(r#"{absolute_path}"#),
                     relative_path: std::path::PathBuf::from(r#"{relative_path}"#),
-                    requested_style: None,
+                    requested_style: {requested_style},
                 }}).unwrap();
             }}
         "##,
@@ -33,6 +30,8 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             function_name = test_function_name,
             absolute_path = testcase.absolute_path.to_string_lossy(),
             relative_path = testcase.relative_path.to_string_lossy(),
+            requested_style =
+                testcase.requested_style.map_or("None".into(), |style| format!("Some({style:?})")),
         )?;
     }
 

tests/driver/interpreter/interpreter.rs

@@ -18,7 +18,7 @@ pub fn test(testcase: &test_driver_lib::TestCase) -> Result<(), Box<dyn Error>>
     let mut compiler = slint_interpreter::ComponentCompiler::default();
     compiler.set_include_paths(include_paths);
     compiler.set_library_paths(library_paths);
-    compiler.set_style(String::from("fluent")); // force to fluent style as Qt does not like multi-threaded test execution
+    compiler.set_style(testcase.requested_style.unwrap_or("fluent").into());
 
     let component =
         spin_on::spin_on(compiler.build_from_source(source, testcase.absolute_path.clone()));

tests/driver/rust/build.rs

@@ -15,10 +15,6 @@ fn main() -> std::io::Result<()> {
         if module_name.starts_with(|c: char| !c.is_ascii_alphabetic()) {
             module_name.insert(0, '_');
         }
-        if let Some(style) = testcase.requested_style {
-            module_name.push('_');
-            module_name.push_str(style);
-        }
         writeln!(generated_file, "#[path=\"{0}.rs\"] mod r#{0};", module_name)?;
         let source = std::fs::read_to_string(&testcase.absolute_path)?;
         let ignored = testcase.is_ignored("rust");