mirror of
https://github.com/truewhile/MeBox.git
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truewhile
55 lines
2.0 KiB
Go
55 lines
2.0 KiB
Go
package repository
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import (
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"strings"
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"testing"
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"gorm.io/driver/postgres"
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"gorm.io/gorm"
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)
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// TestSegmentPrewarmQueryBindsBooleanFound 守住 PostgreSQL 下片段预取查询的合法性。
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//
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// media_segment_fetches.found 是布尔列，而 PostgreSQL 没有 boolean = integer
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// 运算符：写成 f.found = 0 / = 1 会让计划任务里的片段预取固定报
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//
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// operator does not exist: boolean = integer (SQLSTATE 42883)
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//
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// SQLite 一直能跑，所以这个错只在 PostgreSQL 上暴露（表现为日志里周期性出现
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// 该错误、片头片尾数据永远补不上）。这里断言语句里只能出现占位符绑定。
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func TestSegmentPrewarmQueryBindsBooleanFound(t *testing.T) {
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query := segmentPrewarmCandidatesQuery
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lower := strings.ToLower(query)
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for _, forbidden := range []string{"found = 0", "found = 1", "found=0", "found=1", "found = true", "found = false"} {
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if strings.Contains(lower, forbidden) {
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t.Fatalf("预取查询把布尔列与字面量比较（%q），PostgreSQL 会直接报错：\n%s", forbidden, query)
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}
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}
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if got := strings.Count(query, "f.found = ?"); got != 2 {
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t.Fatalf("expected 2 placeholder-bound found comparisons, got %d:\n%s", got, query)
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}
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}
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// TestLikeOperatorMatchesSQLiteCaseInsensitivity 守住搜索大小写行为的方言差异。
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//
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// SQLite 的 LIKE 对 ASCII 不区分大小写，PostgreSQL 的 LIKE 区分大小写：同一个
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// 搜索词在两种方言下必须给出同样的结果集，PostgreSQL 必须走 ILIKE。
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func TestLikeOperatorMatchesSQLiteCaseInsensitivity(t *testing.T) {
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pg, err := gorm.Open(postgres.New(postgres.Config{
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DSN: "postgres://mebox:mebox@127.0.0.1:5432/mebox?sslmode=disable",
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}), &gorm.Config{
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DryRun: true,
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DisableAutomaticPing: true,
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SkipDefaultTransaction: true,
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})
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if err != nil {
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t.Fatalf("open dry-run postgres: %v", err)
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}
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if got := LikeOperator(pg); got != "ILIKE" {
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t.Fatalf("postgres LikeOperator = %q, want ILIKE", got)
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}
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if got := LikeOperator(nil); got != "LIKE" {
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t.Fatalf("nil LikeOperator = %q, want LIKE", got)
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}
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}
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