MySQL expression operators tests.

tests/mysql/alltypes_test.go

@@ -27,6 +27,67 @@ func TestAllTypes(t *testing.T) {
 	testutils.AssertJSON(t, dest, allTypesJson)
 }
 
+func TestExpressionOperators(t *testing.T) {
+	query := AllTypes.SELECT(
+		AllTypes.Integer.IS_NULL().AS("result.is_null"),
+		AllTypes.DatePtr.IS_NOT_NULL().AS("result.is_not_null"),
+		AllTypes.SmallIntPtr.IN(Int(11), Int(22)).AS("result.in"),
+		AllTypes.SmallIntPtr.IN(AllTypes.SELECT(AllTypes.Integer)).AS("result.in_select"),
+		AllTypes.SmallIntPtr.NOT_IN(Int(11), Int(22), NULL).AS("result.not_in"),
+		AllTypes.SmallIntPtr.NOT_IN(AllTypes.SELECT(AllTypes.Integer)).AS("result.not_in_select"),
+	).LIMIT(2)
+
+	//fmt.Println(query.Sql())
+
+	testutils.AssertStatementSql(t, query, `
+SELECT all_types.integer IS NULL AS "result.is_null",
+     all_types.date_ptr IS NOT NULL AS "result.is_not_null",
+     (all_types.small_int_ptr IN (?, ?)) AS "result.in",
+     (all_types.small_int_ptr IN ((
+          SELECT all_types.integer AS "all_types.integer"
+          FROM test_sample.all_types
+     ))) AS "result.in_select",
+     (all_types.small_int_ptr NOT IN (?, ?, NULL)) AS "result.not_in",
+     (all_types.small_int_ptr NOT IN ((
+          SELECT all_types.integer AS "all_types.integer"
+          FROM test_sample.all_types
+     ))) AS "result.not_in_select"
+FROM test_sample.all_types
+LIMIT ?;
+`, int64(11), int64(22), int64(11), int64(22), int64(2))
+
+	var dest []struct {
+		common.ExpressionTestResult `alias:"result.*"`
+	}
+
+	err := query.Query(db, &dest)
+
+	assert.NilError(t, err)
+
+	//testutils.JsonPrint(dest)
+
+	testutils.AssertJSON(t, dest, `
+[
+	{
+		"IsNull": false,
+		"IsNotNull": true,
+		"In": false,
+		"InSelect": false,
+		"NotIn": null,
+		"NotInSelect": true
+	},
+	{
+		"IsNull": false,
+		"IsNotNull": false,
+		"In": null,
+		"InSelect": null,
+		"NotIn": null,
+		"NotInSelect": null
+	}
+]
+`)
+}
+
 func TestBoolOperators(t *testing.T) {
 	query := AllTypes.SELECT(
 		AllTypes.Boolean.EQ(AllTypes.BooleanPtr).AS("EQ1"),