From d4ae38a85d59de6910731de3e9f0dd50fa5daaea Mon Sep 17 00:00:00 2001
From: myyrakle <sssang97@naver.com>
Date: Tue, 13 Aug 2024 23:46:03 +0900
Subject: [PATCH] =?UTF-8?q?[#110]=20handle=5Fdrop=5Fquery=20=ED=85=8C?=
 =?UTF-8?q?=EC=8A=A4=ED=8A=B8=EC=BD=94=EB=93=9C=20=EC=9E=91=EC=84=B1?=
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---
 src/parser/test/ddl.rs | 64 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/src/parser/test/ddl.rs b/src/parser/test/ddl.rs
index 8f0e0e9..07741c9 100644
--- a/src/parser/test/ddl.rs
+++ b/src/parser/test/ddl.rs
@@ -7,6 +7,8 @@ use crate::{
             alter_table::{AlterTableAction, AlterTableQuery, AlterTableRenameColumn},
             create_database::CreateDatabaseQuery,
             create_table::CreateTableQuery,
+            drop_database::DropDatabaseQuery,
+            drop_table::DropTableQuery,
         },
         types::{Column, DataType, TableName},
         SQLStatement,
@@ -183,3 +185,65 @@ fn test_handle_alter_query() {
         }
     }
 }
+
+#[test]
+fn test_handle_drop_query() {
+    struct TestCase {
+        name: String,
+        input: Vec<Token>,
+        expected: SQLStatement,
+        want_error: bool,
+    }
+
+    let test_cases = vec![
+        TestCase {
+            name: "DROP DATABASE foo".into(),
+            input: vec![Token::Database, Token::Identifier("foo".to_owned())],
+            expected: DropDatabaseQuery::builder()
+                .set_name("foo".to_owned())
+                .build()
+                .into(),
+            want_error: false,
+        },
+        TestCase {
+            name: "DROP TABLE foo".into(),
+            input: vec![Token::Table, Token::Identifier("foo".to_owned())],
+            expected: DropTableQuery::builder()
+                .set_table(TableName::new(None, "foo".to_owned()))
+                .build()
+                .into(),
+            want_error: false,
+        },
+        TestCase {
+            name: "오류: 빈 토큰".into(),
+            input: vec![],
+            expected: Default::default(),
+            want_error: true,
+        },
+        TestCase {
+            name: "오류: NULL".into(),
+            input: vec![Token::Null, Token::Null],
+            expected: Default::default(),
+            want_error: true,
+        },
+    ];
+
+    for t in test_cases {
+        let mut parser = Parser::new(t.input);
+
+        let got = parser.handle_drop_query(Default::default());
+
+        assert_eq!(
+            got.is_err(),
+            t.want_error,
+            "{}: want_error: {}, error: {:?}",
+            t.name,
+            t.want_error,
+            got.err()
+        );
+
+        if let Ok(statements) = got {
+            assert_eq!(statements, t.expected.into(), "TC: {}", t.name);
+        }
+    }
+}