Add snapshot testing for statement parsing

For statements it is hard to write any unit tests, as a statement is a rather complex struct also containing some meta information. It is much easier to test the statement parsing, looking at the generated statement and review it instead.

rust/Cargo.toml

@@ -6,14 +6,14 @@ license = "GPL-2.0-or-later"
 
 [dependencies]
 aes = "0.8.2"
-aes-gcm = { version = "0.10.1"}
+aes-gcm = { version = "0.10.1" }
 anyhow = "1.0.75"
 async-trait = "0.1.68"
 base64 = "0.21.2"
-cbc = { version = "0.1.2", features = ["alloc"]}
+cbc = { version = "0.1.2", features = ["alloc"] }
 ccm = "0.5.0"
 chacha20 = "0.9.1"
-chrono = { version = "0.4.23", default-features = false, features = ["clock"]}
+chrono = { version = "0.4.23", default-features = false, features = ["clock"] }
 clap = { version = "4.3.0", features = ["derive", "env"] }
 cmac = "0.7.2"
 configparser = "3"
@@ -57,8 +57,10 @@ rustls = "0.23.5"
 rustls-pemfile = "2.1.2"
 rustls-pemfile-old = { version = "1.0.2", package = "rustls-pemfile" }
 sequoia-ipc = "0.30.1"
-sequoia-openpgp = { version ="1.16.1", default-features = false, features = ["crypto-openssl"] }
-serde = { version = "1.0", features = ["derive"]}
+sequoia-openpgp = { version = "1.16.1", default-features = false, features = [
+  "crypto-openssl",
+] }
+serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0.96"
 sha1 = "0.10.5"
 sha2 = "0.10.7"
@@ -78,11 +80,14 @@ rayon = { version = "1.8.0", optional = true }
 pcap = { version = "1.0.0", optional = true }
 pnet_base = { version = "0.33.0", optional = true }
 pnet = { version = "0.33.0", optional = true }
-socket2 = {version = "0.5.2", features = ["all"], optional = true}
+socket2 = { version = "0.5.2", features = ["all"], optional = true }
 pnet_macros = { version = "0.33.0", optional = true }
 pnet_macros_support = { version = "0.33.0", optional = true }
 
-libssh-rs = {version = "~0.2", features = ["vendored-openssl", "vendored"], optional = true}
+libssh-rs = { version = "~0.2", features = [
+  "vendored-openssl",
+  "vendored",
+], optional = true }
 
 nasl-function-proc-macro = { path = "crates/nasl-function-proc-macro" }
 nasl-c-lib = { path = "crates/nasl-c-lib", optional = true }
@@ -92,22 +97,32 @@ rc4 = "0.1.0"
 
 [workspace]
 resolver = "2"
-members = [
-  "crates/smoketest",
-  "crates/nasl-function-proc-macro",
-]
+members = ["crates/smoketest", "crates/nasl-function-proc-macro"]
 
 [dev-dependencies]
 tracing-test = "0.2.5"
 criterion = "0"
+insta = { version = "1.41.1", features = ["ron"] }
 
 [features]
 dep-graph-parallel = ["rayon", "crossbeam-channel"]
 openvas_serde_support = []
 serde_support = []
-default = ["dep-graph-parallel", "openvas_serde_support", "enforce-no-trailing-arguments", "serde_support"]
+default = [
+  "dep-graph-parallel",
+  "openvas_serde_support",
+  "enforce-no-trailing-arguments",
+  "serde_support",
+]
 
-nasl-builtin-raw-ip = ["pcap", "pnet_base", "pnet", "socket2", "pnet_macros", "pnet_macros_support",]
+nasl-builtin-raw-ip = [
+  "pcap",
+  "pnet_base",
+  "pnet",
+  "socket2",
+  "pnet_macros",
+  "pnet_macros_support",
+]
 nasl-builtin-ssh = ["libssh-rs"]
 experimental = ["nasl-builtin-raw-ip", "nasl-builtin-ssh", "nasl-c-lib"]
 

rust/src/nasl/syntax/snapshots/statement_add.snap

@@ -0,0 +1,45 @@
+---
+source: src/nasl/syntax/statement.rs
+expression: stmt
+snapshot_kind: text
+---
+Statement(
+  start: Token(
+    category: Identifier(Undefined("a")),
+    line_column: (1, 1),
+    position: (0, 1),
+  ),
+  end: Some(Token(
+    category: Semicolon,
+    line_column: (1, 6),
+    position: (5, 6),
+  )),
+  kind: Operator(Plus, [
+    Statement(
+      start: Token(
+        category: Identifier(Undefined("a")),
+        line_column: (1, 1),
+        position: (0, 1),
+      ),
+      end: Some(Token(
+        category: Identifier(Undefined("a")),
+        line_column: (1, 1),
+        position: (0, 1),
+      )),
+      kind: Variable,
+    ),
+    Statement(
+      start: Token(
+        category: Number(1),
+        line_column: (1, 5),
+        position: (4, 5),
+      ),
+      end: Some(Token(
+        category: Semicolon,
+        line_column: (1, 6),
+        position: (5, 6),
+      )),
+      kind: Primitive,
+    ),
+  ]),
+)

rust/src/nasl/syntax/snapshots/statement_array.snap

@@ -0,0 +1,30 @@
+---
+source: src/nasl/syntax/statement.rs
+expression: stmt
+snapshot_kind: text
+---
+Statement(
+  start: Token(
+    category: Identifier(Undefined("a")),
+    line_column: (1, 1),
+    position: (0, 1),
+  ),
+  end: Some(Token(
+    category: Semicolon,
+    line_column: (1, 5),
+    position: (4, 5),
+  )),
+  kind: Array(Some(Statement(
+    start: Token(
+      category: Number(1),
+      line_column: (1, 3),
+      position: (2, 3),
+    ),
+    end: Some(Token(
+      category: RightBrace,
+      line_column: (1, 4),
+      position: (3, 4),
+    )),
+    kind: Primitive,
+  ))),
+)

rust/src/nasl/syntax/snapshots/statement_assign.snap

@@ -0,0 +1,42 @@
+---
+source: src/nasl/syntax/statement.rs
+expression: stmt
+snapshot_kind: text
+---
+Statement(
+  start: Token(
+    category: Identifier(Undefined("a")),
+    line_column: (1, 1),
+    position: (0, 1),
+  ),
+  end: Some(Token(
+    category: Semicolon,
+    line_column: (1, 6),
+    position: (5, 6),
+  )),
+  kind: Assign(Equal, AssignReturn, Statement(
+    start: Token(
+      category: Identifier(Undefined("a")),
+      line_column: (1, 1),
+      position: (0, 1),
+    ),
+    end: Some(Token(
+      category: Identifier(Undefined("a")),
+      line_column: (1, 1),
+      position: (0, 1),
+    )),
+    kind: Variable,
+  ), Statement(
+    start: Token(
+      category: Number(1),
+      line_column: (1, 5),
+      position: (4, 5),
+    ),
+    end: Some(Token(
+      category: Semicolon,
+      line_column: (1, 6),
+      position: (5, 6),
+    )),
+    kind: Primitive,
+  )),
+)

rust/src/nasl/syntax/snapshots/statement_assign_return.snap

@@ -0,0 +1,38 @@
+---
+source: src/nasl/syntax/statement.rs
+expression: stmt
+snapshot_kind: text
+---
+Statement(
+  start: Token(
+    category: MinusMinus,
+    line_column: (1, 1),
+    position: (0, 2),
+  ),
+  end: Some(Token(
+    category: Semicolon,
+    line_column: (1, 4),
+    position: (3, 4),
+  )),
+  kind: Assign(MinusMinus, AssignReturn, Statement(
+    start: Token(
+      category: Identifier(Undefined("a")),
+      line_column: (1, 3),
+      position: (2, 3),
+    ),
+    end: Some(Token(
+      category: Identifier(Undefined("a")),
+      line_column: (1, 3),
+      position: (2, 3),
+    )),
+    kind: Variable,
+  ), Statement(
+    start: Token(
+      category: UnknownSymbol,
+      line_column: (0, 0),
+      position: (0, 0),
+    ),
+    end: None,
+    kind: NoOp,
+  )),
+)

rust/src/nasl/syntax/snapshots/statement_block.snap

@@ -0,0 +1,32 @@
+---
+source: src/nasl/syntax/statement.rs
+expression: stmt
+snapshot_kind: text
+---
+Statement(
+  start: Token(
+    category: LeftCurlyBracket,
+    line_column: (1, 1),
+    position: (0, 1),
+  ),
+  end: Some(Token(
+    category: RightCurlyBracket,
+    line_column: (1, 6),
+    position: (5, 6),
+  )),
+  kind: Block([
+    Statement(
+      start: Token(
+        category: Identifier(Undefined("a")),
+        line_column: (1, 3),
+        position: (2, 3),
+      ),
+      end: Some(Token(
+        category: Semicolon,
+        line_column: (1, 4),
+        position: (3, 4),
+      )),
+      kind: Variable,
+    ),
+  ]),
+)