Calculate lower bounds inside range + adaptive update (#485)

src/test/kotlin/io/emeraldpay/dshackle/upstream/error/EthereumStateLowerBoundErrorHandlerTest.kt

@@ -0,0 +1,73 @@
+package io.emeraldpay.dshackle.upstream.error
+
+import io.emeraldpay.dshackle.upstream.ChainRequest
+import io.emeraldpay.dshackle.upstream.Upstream
+import io.emeraldpay.dshackle.upstream.lowerbound.LowerBoundType
+import io.emeraldpay.dshackle.upstream.rpcclient.ListParams
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.Arguments
+import org.junit.jupiter.params.provider.Arguments.of
+import org.junit.jupiter.params.provider.MethodSource
+import org.mockito.Mockito.anyLong
+import org.mockito.Mockito.mock
+import org.mockito.kotlin.any
+import org.mockito.kotlin.never
+import org.mockito.kotlin.verify
+
+class EthereumStateLowerBoundErrorHandlerTest {
+
+    @ParameterizedTest
+    @MethodSource("requests")
+    fun `update lower bound`(request: ChainRequest) {
+        val upstream = mock<Upstream>()
+        val handler = EthereumStateLowerBoundErrorHandler
+
+        handler.handle(upstream, request, "missing trie node d5648cc9aef48154159d53800f2f")
+
+        verify(upstream).updateLowerBound(213229736, LowerBoundType.STATE)
+    }
+
+    @Test
+    fun `no update lower bound if error is not about state`() {
+        val upstream = mock<Upstream>()
+        val request = ChainRequest(
+            "eth_getTransactionCount",
+            ListParams("0x343", "0xCB5A0A8"),
+        )
+        val handler = EthereumStateLowerBoundErrorHandler
+
+        handler.handle(upstream, request, "strange error")
+
+        verify(upstream, never()).updateLowerBound(anyLong(), any())
+    }
+
+    @Test
+    fun `no update lower bound if there is a non-state method`() {
+        val upstream = mock<Upstream>()
+        val request = ChainRequest(
+            "eth_getBlockByNumber",
+            ListParams("0xCB5A0A8", true),
+        )
+        val handler = EthereumStateLowerBoundErrorHandler
+
+        handler.handle(upstream, request, "missing trie node d5648cc9aef48154159d53800f2f")
+
+        verify(upstream, never()).updateLowerBound(anyLong(), any())
+    }
+
+    companion object {
+        @JvmStatic
+        fun requests(): List<Arguments> =
+            listOf(
+                of(ChainRequest("eth_getTransactionCount", ListParams("0x343", "0xCB5A0A8"))),
+                of(ChainRequest("eth_getCode", ListParams("0x343", "0xCB5A0A8"))),
+                of(ChainRequest("eth_estimateGas", ListParams("0x343", "0xCB5A0A8"))),
+                of(ChainRequest("eth_getBalance", ListParams("0x343", "0xCB5A0A8"))),
+                of(ChainRequest("debug_traceCall", ListParams("0x343", "0xCB5A0A8"))),
+                of(ChainRequest("eth_call", ListParams("0x343", "0xCB5A0A8"))),
+                of(ChainRequest("eth_getProof", ListParams("0x343", "test", "0xCB5A0A8"))),
+                of(ChainRequest("eth_getStorageAt", ListParams("0x343", "test", "0xCB5A0A8"))),
+            )
+    }
+}

src/test/kotlin/io/emeraldpay/dshackle/upstream/error/UpstreamErrorHandlerTest.kt

@@ -0,0 +1,25 @@
+package io.emeraldpay.dshackle.upstream.error
+
+import io.emeraldpay.dshackle.upstream.ChainRequest
+import io.emeraldpay.dshackle.upstream.Upstream
+import io.emeraldpay.dshackle.upstream.lowerbound.LowerBoundType
+import io.emeraldpay.dshackle.upstream.rpcclient.ListParams
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito.mock
+import org.mockito.kotlin.verify
+
+class UpstreamErrorHandlerTest {
+
+    @Test
+    fun `use lower bound error handler`() {
+        val upstream = mock<Upstream>()
+        val request = ChainRequest("eth_getCode", ListParams("0x343", "0xCB5A0A8"))
+        val handler = UpstreamErrorHandler
+
+        handler.handle(upstream, request, "missing trie node d5648cc9aef48154159d53800f2f")
+
+        Thread.sleep(100)
+
+        verify(upstream).updateLowerBound(213229736, LowerBoundType.STATE)
+    }
+}