58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
package db
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import (
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"strings"
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"testing"
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)
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func TestSplitStatements(t *testing.T) {
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cases := []struct {
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in string
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want []string
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}{
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{"SELECT 1", []string{"SELECT 1"}},
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{"SELECT 1; SELECT 2;", []string{"SELECT 1", "SELECT 2"}},
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{"SELECT ';'; SELECT 2", []string{"SELECT ';'", "SELECT 2"}},
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{"SELECT 1; -- c;mt\nSELECT 2", []string{"SELECT 1", "-- c;mt\nSELECT 2"}},
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{"/* a;b */ SELECT 1; SELECT 2", []string{"/* a;b */ SELECT 1", "SELECT 2"}},
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{`SELECT "a;b"; SELECT 2`, []string{`SELECT "a;b"`, "SELECT 2"}},
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{";;", nil},
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{"", nil},
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}
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for _, tc := range cases {
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got := SplitStatements(tc.in)
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if len(got) != len(tc.want) {
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t.Fatalf("SplitStatements(%q) = %#v, want %#v", tc.in, got, tc.want)
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}
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for i := range got {
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if got[i] != tc.want[i] {
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t.Fatalf("SplitStatements(%q)[%d] = %q, want %q", tc.in, i, got[i], tc.want[i])
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}
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}
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}
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}
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func TestStripComments(t *testing.T) {
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cases := []struct {
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in string
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has string // 结果应包含(大小写敏感原文)
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missing string // 结果不应包含
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}{
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{"SELECT 1 -- WHERE x", "SELECT 1", "WHERE x"},
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{"UPDATE t SET x=1 # note\nWHERE id=1", "WHERE id=1", "note"},
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{"SELECT /* hint */ 1", "SELECT", "hint"},
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{"SELECT /*!50000 DROP TABLE t*/", "DROP TABLE t", "/*!"},
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{"SELECT 'DROP TABLE x'", "SELECT", "DROP TABLE x"},
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{`SELECT "col;drop" FROM t`, "FROM t", "col;drop"},
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}
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for _, tc := range cases {
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got := StripComments(tc.in)
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if tc.has != "" && !strings.Contains(got, tc.has) {
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t.Fatalf("StripComments(%q) = %q, 应包含 %q", tc.in, got, tc.has)
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}
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if tc.missing != "" && strings.Contains(got, tc.missing) {
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t.Fatalf("StripComments(%q) = %q, 不应包含 %q", tc.in, got, tc.missing)
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}
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}
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}
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