Allow the corpus to point to a single file

Cargo.toml

@@ -8,7 +8,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 license = "MIT/Apache-2.0"
 edition = "2024"
 repository = "https://github.com/paritytech/revive-differential-testing.git"
-rust-version = "1.85.0"
+rust-version = "1.88.0"
 
 [workspace.dependencies]
 revive-dt-common = { version = "0.1.0", path = "crates/common" }

crates/compiler/src/revive_resolc.rs

@@ -10,6 +10,10 @@ use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
 use revive_dt_config::Arguments;
 use revive_solc_json_interface::SolcStandardJsonOutput;
 
+// TODO: I believe that we need to also pass the solc compiler to resolc so that resolc uses the
+// specified solc compiler. I believe that currently we completely ignore the specified solc binary
+// when invoking resolc which doesn't seem right if we're using solc as a compiler frontend.
+
 /// A wrapper around the `resolc` binary, emitting PVM-compatible bytecode.
 #[derive(Debug)]
 pub struct Resolc {

crates/core/src/driver/mod.rs

@@ -3,6 +3,7 @@
 use std::collections::HashMap;
 use std::fmt::Debug;
 use std::marker::PhantomData;
+use std::str::FromStr;
 
 use alloy::json_abi::JsonAbi;
 use alloy::network::{Ethereum, TransactionBuilder};
@@ -100,12 +101,30 @@ where
             anyhow::bail!("unsupported solc version: {:?}", &mode.solc_version);
         };
 
+        // Note: if the metadata is contained within a solidity file then this is the only file that
+        // we wish to compile since this is a self-contained test. Otherwise, if it's a JSON file
+        // then we need to compile all of the contracts that are in the directory since imports are
+        // allowed in there.
+        let Some(ref metadata_file_path) = metadata.file_path else {
+            anyhow::bail!("The metadata file path is not defined");
+        };
+        let mut files_to_compile = if metadata_file_path
+            .extension()
+            .is_some_and(|extension| extension.eq_ignore_ascii_case("sol"))
+        {
+            Box::new(std::iter::once(metadata_file_path.clone())) as Box<dyn Iterator<Item = _>>
+        } else {
+            Box::new(
+                FilesWithExtensionIterator::new(metadata.directory()?)
+                    .with_allowed_extension("sol"),
+            )
+        };
+
         let compiler = Compiler::<T::Compiler>::new()
             .allow_path(metadata.directory()?)
             .solc_optimizer(mode.solc_optimize());
-        let mut compiler = FilesWithExtensionIterator::new(metadata.directory()?)
-            .with_allowed_extension("sol")
-            .try_fold(compiler, |compiler, path| compiler.with_source(&path))?;
+        let mut compiler =
+            files_to_compile.try_fold(compiler, |compiler, path| compiler.with_source(&path))?;
         for (library_instance, (library_address, _)) in self.deployed_libraries.iter() {
             let library_ident = &metadata
                 .contracts
@@ -200,12 +219,13 @@ where
         case_idx: CaseIdx,
         input: &Input,
         node: &T::Blockchain,
+        mode: &SolcMode,
     ) -> anyhow::Result<(TransactionReceipt, GethTrace, DiffMode)> {
         let deployment_receipts =
             self.handle_contract_deployment(metadata, case_idx, input, node)?;
         let execution_receipt =
             self.handle_input_execution(case_idx, input, deployment_receipts, node)?;
-        self.handle_input_expectations(case_idx, input, &execution_receipt, node)?;
+        self.handle_input_expectations(case_idx, input, &execution_receipt, node, mode)?;
         self.handle_input_diff(case_idx, execution_receipt, node)
     }
 
@@ -312,6 +332,7 @@ where
         input: &Input,
         execution_receipt: &TransactionReceipt,
         node: &T::Blockchain,
+        mode: &SolcMode,
     ) -> anyhow::Result<()> {
         let span = tracing::info_span!("Handling input expectations");
         let _guard = span.enter();
@@ -367,6 +388,7 @@ where
                 node,
                 expectation,
                 &tracing_result,
+                mode,
             )?;
         }
 
@@ -380,11 +402,16 @@ where
         node: &T::Blockchain,
         expectation: &ExpectedOutput,
         tracing_result: &CallFrame,
+        mode: &SolcMode,
     ) -> anyhow::Result<()> {
-        // TODO: We want to respect the compiler version filter on the expected output but would
-        // require some changes to the interfaces of the compiler and such. So, we add it later.
-        // Additionally, what happens if the compiler filter doesn't match? Do we consider that the
-        // transaction should succeed? Do we just ignore the expectation?
+        if let Some(ref version_requirement) = expectation.compiler_version {
+            let Some(compiler_version) = mode.last_patch_version(&self.config.solc) else {
+                anyhow::bail!("unsupported solc version: {:?}", &mode.solc_version);
+            };
+            if !version_requirement.matches(&compiler_version) {
+                return Ok(());
+            }
+        }
 
         let deployed_contracts = self.deployed_contracts(case_idx);
         let chain_state_provider = node;
@@ -431,8 +458,18 @@ where
                 expected_events.iter().zip(execution_receipt.logs())
             {
                 // Handling the emitter assertion.
-                if let Some(expected_address) = expected_event.address {
-                    let expected = expected_address;
+                if let Some(ref expected_address) = expected_event.address {
+                    let expected = if let Some(contract_instance) = expected_address
+                        .strip_suffix(".address")
+                        .map(ContractInstance::new)
+                    {
+                        deployed_contracts
+                            .get(&contract_instance)
+                            .map(|(address, _)| *address)
+                    } else {
+                        Address::from_str(expected_address).ok()
+                    }
+                    .context("Failed to get the address of the event")?;
                     let actual = actual_event.address();
                     if actual != expected {
                         tracing::error!(
@@ -865,8 +902,13 @@ where
                         tracing::info_span!("Executing input", contract_name = ?input.instance)
                             .in_scope(|| {
                                 let (leader_receipt, _, leader_diff) = match leader_state
-                                    .handle_input(self.metadata, case_idx, &input, self.leader_node)
-                                {
+                                    .handle_input(
+                                        self.metadata,
+                                        case_idx,
+                                        &input,
+                                        self.leader_node,
+                                        &mode,
+                                    ) {
                                     Ok(result) => result,
                                     Err(error) => {
                                         tracing::error!(
@@ -895,6 +937,7 @@ where
                                         case_idx,
                                         &input,
                                         self.follower_node,
+                                        &mode,
                                     ) {
                                     Ok(result) => result,
                                     Err(error) => {

crates/format/src/corpus.rs

@@ -28,13 +28,19 @@ impl Corpus {
     }
 }
 
-/// Recursively walks `path` and parses any JSON or Solidity file into a test
-/// definition [Metadata].
+/// If `path` is a file, try to parse it directly into a [MetadataFile].
+/// Else, recursively walk through the `path` directory and parse any
+/// JSON or Solidity file into a test definition [MetadataFile].
 ///
 /// Found tests are inserted into `tests`.
-///
-/// `path` is expected to be a directory.
 pub fn collect_metadata(path: &Path, tests: &mut Vec<MetadataFile>) {
+    if path.is_file()
+        && let Some(metadata) = MetadataFile::try_from_file(&path)
+    {
+        tests.push(metadata);
+        return;
+    }
+
     let dir_entry = match std::fs::read_dir(path) {
         Ok(dir_entry) => dir_entry,
         Err(error) => {
@@ -53,15 +59,6 @@ pub fn collect_metadata(path: &Path, tests: &mut Vec<MetadataFile>) {
         };
 
         let path = entry.path();
-        if path.is_dir() {
-            collect_metadata(&path, tests);
-            continue;
-        }
-
-        if path.is_file() {
-            if let Some(metadata) = MetadataFile::try_from_file(&path) {
-                tests.push(metadata)
-            }
-        }
+        collect_metadata(&path, tests);
     }
 }

crates/format/src/input.rs

@@ -51,7 +51,7 @@ pub struct ExpectedOutput {
 
 #[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq)]
 pub struct Event {
-    pub address: Option<Address>,
+    pub address: Option<String>,
     pub topics: Vec<String>,
     pub values: Calldata,
 }
@@ -1010,4 +1010,53 @@ mod tests {
         // Assert
         assert!(resolved.is_err())
     }
+
+    #[test]
+    fn expected_json_can_be_deserialized1() {
+        // Arrange
+        let str = r#"
+        {
+            "return_data": [
+                "1"
+            ],
+            "events": [
+                {
+                    "topics": [],
+                    "values": []
+                }
+            ]
+        }
+        "#;
+
+        // Act
+        let expected = serde_json::from_str::<Expected>(str);
+
+        // Assert
+        expected.expect("Failed to deserialize");
+    }
+
+    #[test]
+    fn expected_json_can_be_deserialized2() {
+        // Arrange
+        let str = r#"
+        {
+            "return_data": [
+                "1"
+            ],
+            "events": [
+                {
+                    "address": "Main.address",
+                    "topics": [],
+                    "values": []
+                }
+            ]
+        }
+        "#;
+
+        // Act
+        let expected = serde_json::from_str::<Expected>(str);
+
+        // Assert
+        expected.expect("Failed to deserialize");
+    }
 }

crates/format/src/metadata.rs

@@ -193,7 +193,7 @@ impl Metadata {
                 metadata.file_path = Some(path.to_path_buf());
                 metadata.contracts = Some(
                     [(
-                        ContractInstance::new("test"),
+                        ContractInstance::new("Test"),
                         ContractPathAndIdent {
                             contract_source_path: path.to_path_buf(),
                             contract_ident: ContractIdent::new("Test"),