Setup a testing bench

Signed-off-by: Marcel Müller <neikos@neikos.email>

Cargo.lock

@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "aho-corasick"
+version = "1.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ddd31a130427c27518df266943a5308ed92d4b226cc639f5a8f1002816174301"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "annotate-snippets"
 version = "0.12.13"
@@ -31,6 +40,16 @@ version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "843867be96c8daad0d758b57df9392b6d8d271134fce549de6ce169ff98a92af"
 
+[[package]]
+name = "bstr"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63044e1ae8e69f3b5a92c736ca6269b8d12fa7efe39bf34ddb06d102cf0e2cab"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.4"
@@ -107,6 +126,19 @@ dependencies = [
  "wasip3",
 ]
 
+[[package]]
+name = "globset"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52dfc19153a48bde0cbd630453615c8151bce3a5adfac7a0aebfbf0a1e1f57e3"
+dependencies = [
+ "aho-corasick",
+ "bstr",
+ "log",
+ "regex-automata",
+ "regex-syntax",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.15.5"
@@ -153,9 +185,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e82db8c87c7f1ccecb34ce0c24399b8a73081427f3c7c50a5d597925356115e4"
 dependencies = [
  "console",
+ "globset",
  "once_cell",
  "similar",
  "tempfile",
+ "walkdir",
 ]
 
 [[package]]
@@ -234,6 +268,23 @@ version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
+[[package]]
+name = "regex-automata"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e1dd4122fc1595e8162618945476892eefca7b88c52820e74af6262213cae8f"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc897dd8d9e8bd1ed8cdad82b5966c3e0ecae09fb1907d58efaa013543185d0a"
+
 [[package]]
 name = "rustix"
 version = "1.1.4"
@@ -247,6 +298,15 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.27"
@@ -260,6 +320,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
 dependencies = [
  "serde_core",
+ "serde_derive",
 ]
 
 [[package]]
@@ -334,6 +395,7 @@ dependencies = [
  "insta",
  "serde",
  "serde_json",
+ "temple",
  "thiserror",
  "winnow",
 ]
@@ -376,6 +438,16 @@ version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
+[[package]]
+name = "walkdir"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
 [[package]]
 name = "wasip2"
 version = "1.0.2+wasi-0.2.9"
@@ -428,6 +500,15 @@ dependencies = [
  "semver",
 ]
 
+[[package]]
+name = "winapi-util"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "windows-link"
 version = "0.2.1"

Cargo.toml

@@ -6,11 +6,19 @@ edition = "2024"
 [dependencies]
 annotate-snippets = "0.12.13"
 displaydoc = "0.2.5"
-serde = "1.0.228"
+serde = { version = "1.0.228", features = ["derive"] }
 serde_json = "1.0.149"
 thiserror = "2.0.18"
 winnow = { version = "0.7.14", features = ["unstable-recover"] }
 
 [dev-dependencies]
 annotate-snippets = { version = "0.12.13", features = ["testing-colors"] }
-insta = "1.46.3"
+insta = { version = "1.46.3", features = ["glob"] }
+temple = { path = ".", features = ["serialize"] }
+
+[profile.dev.package]
+insta.opt-level = 3
+similar.opt-level = 3
+
+[features]
+serialize = []

src/eval/mod.rs

@@ -15,7 +15,10 @@ pub enum EvaluationError {
     ExplicitAbort,
 }
 
-pub fn execute(instructions: &[Instruction], global_context: &Context) -> Result<String, EvaluationError> {
+pub fn execute(
+    instructions: &[Instruction],
+    global_context: &Context,
+) -> Result<String, EvaluationError> {
     let mut output = String::new();
 
     let mut scopes: HashMap<crate::emit::VariableSlot, serde_json::Value> = HashMap::new();

src/input.rs

@@ -14,12 +14,31 @@ pub struct TempleInput {
     range: Range<usize>,
 }
 
+impl TempleInput {
+    pub fn from_parts(backing: Arc<str>, range: Range<usize>) -> TempleInput {
+        TempleInput { backing, range }
+    }
+
+    pub fn into_parts(self) -> (Arc<str>, Range<usize>) {
+        (self.backing, self.range)
+    }
+}
+
 impl std::fmt::Debug for TempleInput {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(f, "\"{}\"", self.as_str())
     }
 }
 
+impl From<String> for TempleInput {
+    fn from(value: String) -> Self {
+        let range = 0..value.len();
+        let backing = Arc::from(value);
+
+        TempleInput { backing, range }
+    }
+}
+
 impl From<&str> for TempleInput {
     fn from(value: &str) -> Self {
         let backing = Arc::from(value.to_string());

src/lib.rs

@@ -11,7 +11,7 @@ use crate::input::TempleInput;
 pub mod ast;
 pub mod emit;
 pub mod eval;
-mod input;
+pub mod input;
 pub mod parser;
 
 #[derive(Debug, Error, Display)]

tests/cases/ast@interpolation.snap

@@ -0,0 +1,42 @@
+---
+source: tests/file_tests.rs
+expression: ast
+input_file: tests/cases/interpolation.temple
+---
+TemplateAst {
+    root: [
+        StaticContent(
+            TemplateToken {
+                kind: Content,
+                source: "Hello! I'm",
+            },
+        ),
+        Interpolation {
+            prev_whitespace: Some(
+                TemplateToken {
+                    kind: Whitespace,
+                    source: " ",
+                },
+            ),
+            wants_output: Some(
+                TemplateToken {
+                    kind: WantsOutput,
+                    source: "=",
+                },
+            ),
+            expression: VariableAccess(
+                TemplateToken {
+                    kind: Ident,
+                    source: "name",
+                },
+            ),
+            post_whitespace: Some(
+                TemplateToken {
+                    kind: Whitespace,
+                    source: "
+                    ",
+                },
+            ),
+        },
+    ],
+}

tests/cases/ast@simple.snap

@@ -0,0 +1,16 @@
+---
+source: tests/file_tests.rs
+expression: ast
+input_file: tests/cases/simple.temple
+---
+TemplateAst {
+    root: [
+        StaticContent(
+            TemplateToken {
+                kind: Content,
+                source: "Hello World!
+                ",
+            },
+        ),
+    ],
+}

tests/cases/instructions@interpolation.snap

@@ -0,0 +1,28 @@
+---
+source: tests/file_tests.rs
+expression: emit
+input_file: tests/cases/interpolation.temple
+---
+[
+    AppendContent {
+        content: "Hello! I'm",
+    },
+    AppendContent {
+        content: " ",
+    },
+    LoadFromContextToSlot {
+        name: "name",
+        slot: VariableSlot {
+            index: 0,
+        },
+    },
+    EmitFromSlot {
+        slot: VariableSlot {
+            index: 0,
+        },
+    },
+    AppendContent {
+        content: "
+        ",
+    },
+]

tests/cases/instructions@simple.snap

@@ -0,0 +1,11 @@
+---
+source: tests/file_tests.rs
+expression: emit
+input_file: tests/cases/simple.temple
+---
+[
+    AppendContent {
+        content: "Hello World!
+        ",
+    },
+]

tests/cases/interpolation.temple

@@ -0,0 +1,5 @@
+{
+    "name": "Hemera"
+}
+---
+Hello! I'm {{= name }}

tests/cases/output@interpolation.snap

@@ -0,0 +1,6 @@
+---
+source: tests/file_tests.rs
+expression: output
+input_file: tests/cases/interpolation.temple
+---
+"Hello! I'm Hemera\n"

tests/cases/output@simple.snap

@@ -0,0 +1,6 @@
+---
+source: tests/file_tests.rs
+expression: output
+input_file: tests/cases/simple.temple
+---
+"Hello World!\n"

tests/cases/parsed@interpolation.snap

@@ -0,0 +1,46 @@
+---
+source: tests/file_tests.rs
+expression: parsed
+input_file: tests/cases/interpolation.temple
+---
+ParsedTemplate {
+    tokens: [
+        TemplateToken {
+            kind: Content,
+            source: "Hello! I'm",
+        },
+        TemplateToken {
+            kind: Whitespace,
+            source: " ",
+        },
+        TemplateToken {
+            kind: LeftDelim,
+            source: "{{",
+        },
+        TemplateToken {
+            kind: WantsOutput,
+            source: "=",
+        },
+        TemplateToken {
+            kind: Whitespace,
+            source: " ",
+        },
+        TemplateToken {
+            kind: Ident,
+            source: "name",
+        },
+        TemplateToken {
+            kind: Whitespace,
+            source: " ",
+        },
+        TemplateToken {
+            kind: RightDelim,
+            source: "}}",
+        },
+        TemplateToken {
+            kind: Whitespace,
+            source: "
+            ",
+        },
+    ],
+}

tests/cases/parsed@simple.snap

@@ -0,0 +1,14 @@
+---
+source: tests/file_tests.rs
+expression: parsed
+input_file: tests/cases/simple.temple
+---
+ParsedTemplate {
+    tokens: [
+        TemplateToken {
+            kind: Content,
+            source: "Hello World!
+            ",
+        },
+    ],
+}

tests/cases/simple.temple

@@ -0,0 +1 @@
+Hello World!

tests/file_tests.rs

@@ -0,0 +1,46 @@
+use std::collections::HashMap;
+
+use temple::Context;
+
+#[test]
+fn check_cases() {
+    insta::glob!("cases/*.temple", |path| {
+        let mut settings = insta::Settings::clone_current();
+        settings.set_snapshot_path("cases");
+        settings.set_snapshot_suffix(path.file_stem().unwrap().display().to_string());
+        settings.set_prepend_module_to_snapshot(false);
+        let _guard = settings.bind_to_scope();
+
+        let input = std::fs::read_to_string(path).unwrap();
+
+        let (context, input) = input.split_once("\n---\n").unwrap_or_else(|| ("", &input));
+
+        let map = if !context.is_empty() {
+            serde_json::from_str::<HashMap<String, serde_json::Value>>(context).unwrap()
+        } else {
+            HashMap::new()
+        };
+
+        let mut context = Context::new();
+
+        for (k, v) in map {
+            context.insert(k, v);
+        }
+
+        let parsed = temple::parser::parse(input.into()).unwrap();
+
+        insta::assert_debug_snapshot!("parsed", parsed);
+
+        let ast = temple::ast::parse(parsed.tokens()).unwrap();
+
+        insta::assert_debug_snapshot!("ast", ast);
+
+        let emit = temple::emit::emit_machine(ast);
+
+        insta::assert_debug_snapshot!("instructions", emit);
+
+        let output = temple::eval::execute(&emit, &context).unwrap();
+
+        insta::assert_debug_snapshot!("output", output);
+    });
+}