2a6f24c61b
We do this as the wallet will no longer store blocks all the way from genesis to the tip of the chain. Instead, in order to find a reasonable birthday block, we resort to performing a binary search for a block timestamp that's within +/-2 hours of the birthday timestamp.
85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
package wallet
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import (
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"testing"
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"time"
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)
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// TestLocateBirthdayBlock ensures we can properly map a block in the chain to a
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//timestamp.
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func TestLocateBirthdayBlock(t *testing.T) {
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t.Parallel()
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// We'll use test chains of 30 blocks with a duration between two
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// consecutive blocks being slightly greater than the largest margin
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// allowed by locateBirthdayBlock. Doing so lets us test the method more
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// effectively as there is only one block within the chain that can map
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// to a timestamp (this does not apply to the first and last blocks,
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// which can map to many timestamps beyond either end of chain).
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const (
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numBlocks = 30
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blockInterval = birthdayBlockDelta + 1
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)
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genesisTimestamp := chainParams.GenesisBlock.Header.Timestamp
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testCases := []struct {
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name string
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birthday time.Time
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birthdayHeight int32
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}{
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{
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name: "left-right-left-left",
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birthday: genesisTimestamp.Add(8 * blockInterval),
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birthdayHeight: 8,
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},
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{
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name: "right-right-right-left",
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birthday: genesisTimestamp.Add(27 * blockInterval),
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birthdayHeight: 27,
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},
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{
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name: "before start height",
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birthday: genesisTimestamp.Add(-blockInterval),
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birthdayHeight: 0,
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},
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{
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name: "start height",
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birthday: genesisTimestamp,
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birthdayHeight: 0,
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},
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{
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name: "end height",
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birthday: genesisTimestamp.Add(numBlocks * blockInterval),
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birthdayHeight: numBlocks - 1,
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},
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{
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name: "after end height",
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birthday: genesisTimestamp.Add(2 * numBlocks * blockInterval),
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birthdayHeight: numBlocks - 1,
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},
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}
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for _, testCase := range testCases {
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success := t.Run(testCase.name, func(t *testing.T) {
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chainConn := createMockChainConn(
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chainParams.GenesisBlock, numBlocks, blockInterval,
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)
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birthdayBlock, err := locateBirthdayBlock(
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chainConn, testCase.birthday,
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)
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if err != nil {
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t.Fatalf("unable to locate birthday block: %v",
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err)
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}
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if birthdayBlock.Height != testCase.birthdayHeight {
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t.Fatalf("expected birthday block with height "+
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"%d, got %d", testCase.birthdayHeight,
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birthdayBlock.Height)
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}
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})
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if !success {
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break
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}
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}
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}
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