Updated on 2026-08-14

domain/src/main/java/com/tangem/domain/common/extensions/Blockchain.kt

@@ -5,7 +5,7 @@ import com.tangem.blockchain.common.Blockchain
 fun Blockchain.Companion.fromNetworkId(networkId: String): Blockchain? {
     return when (networkId) {
         "arbitrum-one" -> Blockchain.Arbitrum
-        "arbitrum-one/test" -> Blockchain.ArbitrumTestnet
+        "arbitrum/test" -> Blockchain.ArbitrumTestnet
         "avalanche", "avalanche-2" -> Blockchain.Avalanche
         "avalanche/test", "avalanche-2/test" -> Blockchain.AvalancheTestnet
         "binancecoin" -> Blockchain.Binance
@@ -40,6 +40,7 @@ fun Blockchain.Companion.fromNetworkId(networkId: String): Blockchain? {
         "xdai" -> Blockchain.Gnosis
         "polkadot" -> Blockchain.Polkadot
         "polkadot/test" -> Blockchain.PolkadotTestnet
+        "kusama" -> Blockchain.Kusama
         else -> null
     }
 }
@@ -84,6 +85,7 @@ fun Blockchain.toNetworkId(): String {
         Blockchain.Gnosis -> "xdai"
         Blockchain.Polkadot -> "polkadot"
         Blockchain.PolkadotTestnet -> "polkadot/test"
+        Blockchain.Kusama -> "kusama"
     }
 }
 
@@ -101,15 +103,16 @@ fun Blockchain.toCoinId(): String {
         Blockchain.Avalanche, Blockchain.AvalancheTestnet -> "avalanche-2"
         Blockchain.Solana, Blockchain.SolanaTestnet -> "solana"
         Blockchain.Fantom, Blockchain.FantomTestnet -> "fantom"
+        Blockchain.Tron, Blockchain.TronTestnet -> "tron"
+        Blockchain.Polkadot, Blockchain.PolkadotTestnet -> "polkadot"
         Blockchain.Ducatus -> "ducatus"
         Blockchain.Litecoin -> "litecoin"
         Blockchain.RSK -> "rootstock"
         Blockchain.Tezos -> "tezos"
         Blockchain.XRP -> "ripple"
         Blockchain.Dogecoin -> "dogecoin"
-        Blockchain.Tron, Blockchain.TronTestnet -> "tron"
         Blockchain.Gnosis -> "xdai"
-        Blockchain.Polkadot, Blockchain.PolkadotTestnet -> "polkadot"
+        Blockchain.Kusama -> "kusama"
         Blockchain.Unknown -> "unknown"
     }
 }

domain/src/main/java/com/tangem/domain/common/extensions/CardSdk.kt

@@ -18,8 +18,7 @@ fun Card.supportedBlockchains(): List<Blockchain> {
             Blockchain.fromCurve(EllipticCurve.Secp256k1)
         }
         else -> {
-            Blockchain.fromCurve(EllipticCurve.Secp256k1) +
-                Blockchain.fromCurve(EllipticCurve.Ed25519)
+            (Blockchain.fromCurve(EllipticCurve.Secp256k1) + Blockchain.fromCurve(EllipticCurve.Ed25519)).distinct()
         }
     }
     val filtered = supportedBlockchains.filter { isTestCard == it.isTestnet() }

domain/src/test/java/com/tangem/domain/features/BlockchainTests.kt

@@ -0,0 +1,20 @@
+package com.tangem.domain.features
+
+import com.google.common.truth.Truth
+import com.tangem.blockchain.common.Blockchain
+import com.tangem.domain.common.extensions.fromNetworkId
+import com.tangem.domain.common.extensions.toNetworkId
+import org.junit.Test
+
+class BlockchainTests {
+    @Test
+    fun allNetworkIdsAreImplemented() {
+        val unimplementedIds = Blockchain.values()
+            .toMutableList()
+            .apply { remove(Blockchain.Unknown) }
+            .map { it to Blockchain.fromNetworkId(it.toNetworkId()) }
+            .mapNotNull { if(it.second == null) it.first else null }
+
+        Truth.assertThat(unimplementedIds).isEmpty()
+    }
+}

domain/src/test/java/com/tangem/domain/features/ExampleUnitTest.kt

@@ -1,16 +0,0 @@
-package com.tangem.domain.features
-
-import org.junit.Assert.assertEquals
-import org.junit.Test
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * See [testing documentation](http://d.android.com/tools/testing).
- */
-class ExampleUnitTest {
-    @Test
-    fun addition_isCorrect() {
-        assertEquals(4, 2 + 2)
-    }
-}