Coverage Summary for Class: ExchangeRateDao (com.georgeci.moneysurfer.data.db.dao)

 package com.georgeci.moneysurfer.data.db.dao
 
 import androidx.room.Dao
 import androidx.room.Query
 import androidx.room.Transaction
 import androidx.room.Upsert
 import com.georgeci.moneysurfer.data.db.entity.ExchangeRateEntity
 import kotlinx.coroutines.flow.Flow
 
 @Dao
 interface ExchangeRateDao {
 
     @Query("SELECT * FROM exchange_rates WHERE baseCurrency = :base")
     fun observeByBase(base: String): Flow<List<ExchangeRateEntity>>
 
     @Query("SELECT MAX(fetchedAt) FROM exchange_rates WHERE baseCurrency = :base")
     suspend fun lastFetchedAt(base: String): Long?
 
     @Upsert
     suspend fun upsertAll(entities: List<ExchangeRateEntity>)
 
     @Query("DELETE FROM exchange_rates WHERE baseCurrency = :base")
     suspend fun deleteByBase(base: String)
 
     @Query("DELETE FROM exchange_rates")
     suspend fun deleteAll()
 
     /**
      * Swaps in a freshly fetched table for one base. Delete-then-insert rather than a plain upsert
      * so a currency the provider has stopped quoting disappears instead of lingering at whatever
      * rate it last had.
      */
     @Transaction
     suspend fun replaceForBase(base: String, entities: List<ExchangeRateEntity>) {
         deleteByBase(base)
         upsertAll(entities)
     }
 }