[#69] commit 파싱 구현

src/ast/tcl/commit.rs

@@ -1,2 +1,10 @@
+use crate::ast::{SQLStatement, TCLStatement};
+
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct CommitQuery {}
+
+impl From<CommitQuery> for SQLStatement {
+    fn from(value: CommitQuery) -> SQLStatement {
+        SQLStatement::TCL(TCLStatement::Commit(value))
+    }
+}

src/parser/implements/tcl/commit.rs

@@ -0,0 +1,14 @@
+use std::error::Error;
+
+use crate::ast::tcl::CommitQuery;
+use crate::ast::SQLStatement;
+use crate::parser::predule::{Parser, ParserContext};
+
+impl Parser {
+    pub(crate) fn parse_commit_query(
+        &mut self,
+        _context: ParserContext,
+    ) -> Result<SQLStatement, Box<dyn Error + Send>> {
+        Ok(CommitQuery {}.into())
+    }
+}

src/parser/implements/tcl/mod.rs

@@ -1 +1,2 @@
 pub mod begin;
+pub mod commit;

src/parser/parser.rs

@@ -90,6 +90,10 @@ impl Parser {
                         let query = self.parse_begin_query(context.clone())?;
                         statements.push(query);
                     }
+                    Token::Commit => {
+                        let query = self.parse_commit_query(context.clone())?;
+                        statements.push(query);
+                    }
                     _ => {
                         break;
                     }

src/parser/test/mod.rs

@@ -14,4 +14,4 @@ pub(crate) mod update;
 
 pub(crate) mod other;
 
-pub(crate) mod begin_transaction;
+pub(crate) mod tcl;

src/parser/test/begin_transaction.rs → src/parser/test/tcl.rs

@@ -1,7 +1,10 @@
 #![cfg(test)]
 
 use crate::{
-    ast::{tcl::BeginTransactionQuery, SQLStatement},
+    ast::{
+        tcl::{BeginTransactionQuery, CommitQuery},
+        SQLStatement,
+    },
     parser::predule::{Parser, ParserContext},
 };
 
@@ -53,3 +56,38 @@ pub fn begin_transaction() {
         assert_eq!(result.unwrap(), vec![tc.expected], "{}", tc.name);
     }
 }
+
+#[test]
+pub fn commit() {
+    struct TestCase {
+        name: String,
+        input: String,
+        expected: SQLStatement,
+        want_err: bool,
+    }
+
+    let test_cases = vec![TestCase {
+        name: "정상적인 Commit 명령".to_owned(),
+        input: "COMMIT;".to_owned(),
+        expected: CommitQuery {}.into(),
+        want_err: false,
+    }];
+
+    for tc in test_cases {
+        let mut parser = Parser::new(tc.input).unwrap();
+
+        let result = parser.parse(ParserContext::default());
+
+        if tc.want_err {
+            assert!(
+                result.is_err(),
+                "{} - expected error, got {:?}",
+                tc.name,
+                result
+            );
+            continue;
+        }
+
+        assert_eq!(result.unwrap(), vec![tc.expected], "{}", tc.name);
+    }
+}