Add comprehensive unit tests for contract, router, and problem modules

contract/cache_test.go

@@ -0,0 +1,28 @@
+package contract_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/studiolambda/cosmos/contract"
+)
+
+func TestErrCacheKeyNotFoundMessage(t *testing.T) {
+	require.Equal(t, "cache key not found", contract.ErrCacheKeyNotFound.Error())
+}
+
+func TestErrCacheKeyNotFoundIsNonNil(t *testing.T) {
+	require.NotNil(t, contract.ErrCacheKeyNotFound)
+}
+
+func TestErrCacheUnsupportedOperationMessage(t *testing.T) {
+	require.Equal(
+		t,
+		"cache unsupported operation",
+		contract.ErrCacheUnsupportedOperation.Error(),
+	)
+}
+
+func TestErrCacheUnsupportedOperationIsNonNil(t *testing.T) {
+	require.NotNil(t, contract.ErrCacheUnsupportedOperation)
+}

contract/database_test.go

@@ -0,0 +1,32 @@
+package contract_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/studiolambda/cosmos/contract"
+)
+
+func TestErrDatabaseNoRowsMessage(t *testing.T) {
+	require.Equal(
+		t,
+		"no database rows were found",
+		contract.ErrDatabaseNoRows.Error(),
+	)
+}
+
+func TestErrDatabaseNoRowsIsNonNil(t *testing.T) {
+	require.NotNil(t, contract.ErrDatabaseNoRows)
+}
+
+func TestErrDatabaseNestedTransactionMessage(t *testing.T) {
+	require.Equal(
+		t,
+		"nested transactions are not supported",
+		contract.ErrDatabaseNestedTransaction.Error(),
+	)
+}
+
+func TestErrDatabaseNestedTransactionIsNonNil(t *testing.T) {
+	require.NotNil(t, contract.ErrDatabaseNestedTransaction)
+}

contract/hooks_test.go

@@ -0,0 +1,18 @@
+package contract_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/studiolambda/cosmos/contract"
+)
+
+func TestHooksKeyIsNonNil(t *testing.T) {
+	require.NotNil(t, contract.HooksKey)
+}
+
+func TestHooksKeyIsDistinctType(t *testing.T) {
+	var other any = struct{}{}
+
+	require.NotEqual(t, other, contract.HooksKey)
+}