patch resolving

tests/data/blendrocktograss002.vmt

@@ -4,7 +4,7 @@
 	"$basetexture2" "cp_mountainlab/nature/grass001"
 	"$blendmodulatetexture" "nature/grass_blendmask"
 	"$bumpmap" "nature/rockwall009_height-ssbump"
-    	"$ssbump" "1"
+  "$ssbump" "1"
 	"%keywords" "tf"
 	"$surfaceprop" "dirt"
 }

tests/data/patch.vmt

@@ -1,8 +1,8 @@
 "patch"
 {
-	"include"		"materials/glass/glasswindow001a.vmt"
+	"include"		"tests/data/concretefloor003.vmt"
 	"replace"
 	{
-		"$envmap"		"maps/koth_bagel_rc2a/c1920_704_41"
+		"$ssbump" "0"
 	}
 }

tests/parse.rs

@@ -1,7 +1,17 @@
 use miette::{GraphicalReportHandler, GraphicalTheme};
 use std::fs::read_to_string;
 use test_case::test_case;
+use thiserror::Error;
 use vmt_parser::from_str;
+use vmt_parser::material::Material;
+
+#[derive(Debug, Error)]
+enum LoaderError {
+    #[error(transparent)]
+    Io(#[from] std::io::Error),
+    #[error(transparent)]
+    Vdf(#[from] vdf_reader::VdfError),
+}
 
 #[test_case("tests/data/concretefloor003.vmt")]
 #[test_case("tests/data/mvm_backpack.vmt")]
@@ -11,7 +21,15 @@ use vmt_parser::from_str;
 fn test_serde(path: &str) {
     let raw = read_to_string(path).unwrap();
     match from_str(&raw) {
-        Ok(result) => insta::assert_ron_snapshot!(path, result),
+        Ok(result) => {
+            insta::assert_ron_snapshot!(path, result);
+            if let Material::Patch(patch) = result {
+                let patched = patch
+                    .resolve(|path| read_to_string(path).map_err(LoaderError::from))
+                    .unwrap();
+                insta::assert_ron_snapshot!(format!("{}_resolved", path), patched);
+            }
+        }
         Err(e) => {
             let handler = GraphicalReportHandler::new_themed(GraphicalTheme::unicode_nocolor());
             let mut out = String::new();

tests/snapshots/parse__tests__data__patch.vmt.snap

@@ -3,8 +3,8 @@ source: tests/parse.rs
 expression: result
 ---
 patch(PatchMaterial(
-  include: "materials/glass/glasswindow001a.vmt",
+  include: "tests/data/concretefloor003.vmt",
   replace: {
-    "$envmap": "maps/koth_bagel_rc2a/c1920_704_41",
+    "$ssbump": "0",
   },
 ))

tests/snapshots/parse__tests__data__patch.vmt_resolved.snap

@@ -0,0 +1,32 @@
+---
+source: tests/parse.rs
+expression: patched
+---
+lightmappedgeneric(LightMappedGenericMaterial(
+  r#$basetexture: "cp_mountainlab/concrete/concretefloor003",
+  r#$decal: false,
+  r#$detail: Some("overlays/detail001"),
+  r#$surfaceprop: None,
+  r#$basetexturetransform: "center 0.5 0.5 scale 1 1 rotate 0 translate 0 0",
+  r#$color: Vec3((1.0, 1.0, 1.0)),
+  r#$decalscale: 1.0,
+  r#$decalscale: Vec2((4.0, 4.0)),
+  r#$detailblendfactor: 1.0,
+  r#$detailblendmode: 0,
+  r#$modelmaterial: None,
+  r#$pointsamplemagfilter: false,
+  r#$seamless_scale: 1.0,
+  r#$alpha: 1.0,
+  r#$alphatest: false,
+  r#$distancealpha: false,
+  r#$nocull: false,
+  r#$translucent: false,
+  r#$bumpmap: Some("concrete/concretefloor007b_height-ssbump"),
+  r#$lightwarptexture: None,
+  r#$selfillum: false,
+  r#$ssbump: false,
+  r#$envmap: None,
+  r#$phong: false,
+  r#$nofog: false,
+  r#$ignorez: false,
+))