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Use a failable iterator when selecting records (#1917)
* Use a failable iterator when selecting records * Add test to verify failable iterator behaviour
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26 changes: 26 additions & 0 deletions
26
Tests/ApolloTests/SQLiteDotSwiftDatabaseBehaviorTests.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| import XCTest | ||
| @testable import ApolloSQLite | ||
| import ApolloTestSupport | ||
| import SQLite | ||
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| class SQLiteDotSwiftDatabaseBehaviorTests: XCTestCase { | ||
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| func testSelection_withForcedError_shouldThrow() throws { | ||
| let sqliteFileURL = SQLiteTestCacheProvider.temporarySQLiteFileURL() | ||
| let db = try! SQLiteDotSwiftDatabase(fileURL: sqliteFileURL) | ||
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| try! db.createRecordsTableIfNeeded() | ||
| try! db.addOrUpdateRecordString("record", for: "key") | ||
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| var rows = [DatabaseRow]() | ||
| XCTAssertNoThrow(rows = try db.selectRawRows(forKeys: ["key"])) | ||
| XCTAssertEqual(rows.count, 1) | ||
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| // Use SQLite directly to manipulate the database (cannot be done with SQLiteDotSwiftDatabase) | ||
| let connection = try Connection(.uri(sqliteFileURL.absoluteString), readonly: false) | ||
| let table = Table(SQLiteDotSwiftDatabase.tableName) | ||
| try! connection.run(table.drop(ifExists: false)) | ||
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| XCTAssertThrowsError(try db.selectRawRows(forKeys: ["key"])) | ||
| } | ||
| } |