[Tarantool-patches] [PATCH v6 10/22] sql: check args of randomblob()

[imeevma@tarantool.org]

After this patch, the argument types of the randomblob() function
will be checked properly.

Part of #4159
---
 src/box/sql/func.c          | 12 ++++-----
 test/sql-tap/func.test.lua  |  6 ++---
 test/sql-tap/func5.test.lua | 51 ++++++++++++++++++++++++++++++++++++-
 3 files changed, 58 insertions(+), 11 deletions(-)

diff --git a/src/box/sql/func.c b/src/box/sql/func.c
index a1b284762..ae9b6d138 100644
--- a/src/box/sql/func.c
+++ b/src/box/sql/func.c
@@ -937,12 +937,10 @@ randomBlob(sql_context * context, int argc, sql_value ** argv)
 	unsigned char *p;
 	assert(argc == 1);
 	UNUSED_PARAMETER(argc);
-	if (mp_type_is_bloblike(sql_value_type(argv[0]))) {
-		diag_set(ClientError, ER_SQL_TYPE_MISMATCH,
-			 sql_value_to_diag_str(argv[0]), "numeric");
-		context->is_aborted = true;
-		return;
-	}
+	enum mp_type mp_type = sql_value_type(argv[0]);
+	if (mp_type == MP_NIL)
+		return sql_result_null(context);
+	assert(mp_type == MP_UINT);
 	n = sql_value_int(argv[0]);
 	if (n < 1)
 		return;
@@ -2734,7 +2732,7 @@ static struct {
 	}, {
 	 .name = "RANDOMBLOB",
 	 .param_count = 1,
-	 .first_arg = FIELD_TYPE_ANY,
+	 .first_arg = FIELD_TYPE_UNSIGNED,
 	 .args = FIELD_TYPE_ANY,
 	 .is_blob_like_str = false,
 	 .returns = FIELD_TYPE_VARBINARY,
diff --git a/test/sql-tap/func.test.lua b/test/sql-tap/func.test.lua
index db267d0f5..2ae36fe64 100755
--- a/test/sql-tap/func.test.lua
+++ b/test/sql-tap/func.test.lua
@@ -982,14 +982,14 @@ test:do_execsql_test(
         -- </func-9.4>
     })
 
-test:do_execsql_test(
+test:do_catchsql_test(
     "func-9.5",
     [[
         SELECT length(randomblob(32)), length(randomblob(-5)),
                length(randomblob(2000))
     ]], {
         -- <func-9.5>
-        32, "", 2000
+        1, "Type mismatch: can not convert -5 to unsigned"
         -- </func-9.5>
     })
 
@@ -2928,7 +2928,7 @@ test:do_catchsql_test(
         SELECT RANDOMBLOB(X'FF')
     ]], {
         -- <func-76.2>
-        1, "Type mismatch: can not convert varbinary to numeric"
+        1, "Type mismatch: can not convert varbinary to unsigned"
         -- </func-76.2>
     })
 
diff --git a/test/sql-tap/func5.test.lua b/test/sql-tap/func5.test.lua
index 170dee9f9..30653e9e1 100755
--- a/test/sql-tap/func5.test.lua
+++ b/test/sql-tap/func5.test.lua
@@ -1,6 +1,6 @@
 #!/usr/bin/env tarantool
 test = require("sqltester")
-test:plan(106)
+test:plan(113)
 
 --!./tcltestrunner.lua
 -- 2010 August 27
@@ -885,4 +885,53 @@ test:do_execsql_test(
         2
     })
 
+test:do_execsql_test(
+    "func-5-6.13.1", [[
+        SELECT randomblob(NULL);
+    ]],{
+        ""
+    })
+
+test:do_execsql_test(
+    "func-5-6.13.2", [[
+        SELECT typeof(randomblob(123));
+    ]], {
+        "varbinary"
+    })
+
+test:do_catchsql_test(
+    "func-5-6.13.3", [[
+        SELECT randomblob(-123);
+    ]], {
+        1, "Type mismatch: can not convert -123 to unsigned"
+    })
+
+test:do_catchsql_test(
+    "func-5-6.13.4", [[
+        SELECT randomblob(-5.5);
+    ]], {
+        1, "Type mismatch: can not convert -5.5 to unsigned"
+    })
+
+test:do_catchsql_test(
+    "func-5-6.13.5", [[
+        SELECT randomblob('-123');
+    ]], {
+        1, "Type mismatch: can not convert -123 to unsigned"
+    })
+
+test:do_catchsql_test(
+    "func-5-6.13.6", [[
+        SELECT randomblob(false);
+    ]], {
+        1, "Type mismatch: can not convert FALSE to unsigned"
+    })
+
+test:do_catchsql_test(
+    "func-5-6.13.7", [[
+        SELECT randomblob(X'3334');
+    ]], {
+        1, "Type mismatch: can not convert varbinary to unsigned"
+    })
+
 test:finish_test()
-- 
2.25.1