test: migrate e2e/genutil to systemtest (#22325)

tests/go.mod

@@ -22,7 +22,7 @@ require (
 	// this version is not used as it is always replaced by the latest Cosmos SDK version
 	github.com/cosmos/cosmos-sdk v0.53.0
 	github.com/cosmos/gogoproto v1.7.0
-	github.com/spf13/cobra v1.8.1
+	github.com/spf13/cobra v1.8.1 // indirect
 	github.com/stretchr/testify v1.9.0
 	go.uber.org/mock v0.5.0
 	google.golang.org/grpc v1.67.1

tests/systemtests/export_test.go

@@ -0,0 +1,88 @@
+//go:build system_test
+
+package systemtests
+
+import (
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/tidwall/gjson"
+)
+
+func TestExportCmd_WithHeight(t *testing.T) {
+	sut.ResetChain(t)
+	cli := NewCLIWrapper(t, sut, verbose)
+
+	sut.StartChain(t)
+
+	// Wait 10s for producing blocks
+	time.Sleep(10 * time.Second)
+
+	sut.StopChain()
+
+	testCases := []struct {
+		name          string
+		args          []string
+		expZeroHeight bool
+	}{
+		{"should export correct height", []string{"genesis", "export", "--home", sut.nodePath(0)}, false},
+		{"should export correct height with --height", []string{"genesis", "export", "--height=5", "--home", sut.nodePath(0), "--log_level=disabled"}, false},
+		{"should export height 0 with --for-zero-height", []string{"genesis", "export", "--for-zero-height=true", "--home", sut.nodePath(0)}, true},
+	}
+
+	for _, tc := range testCases {
+		res := cli.RunCommandWithArgs(tc.args...)
+		height := gjson.Get(res, "initial_height").Int()
+		if tc.expZeroHeight {
+			require.Equal(t, height, int64(0))
+		} else {
+			require.Greater(t, height, int64(0))
+		}
+
+		// Check consensus params of exported state
+		maxGas := gjson.Get(res, "consensus.params.block.max_gas").Int()
+		require.Equal(t, maxGas, int64(MaxGas))
+	}
+}
+
+func TestExportCmd_WithFileFlag(t *testing.T) {
+	sut.ResetChain(t)
+	cli := NewCLIWrapper(t, sut, verbose)
+	exportFile := "foobar.json"
+
+	sut.StartChain(t)
+
+	// Wait 10s for producing blocks
+	time.Sleep(10 * time.Second)
+
+	sut.StopChain()
+
+	testCases := []struct {
+		name   string
+		args   []string
+		expErr bool
+		errMsg string
+	}{
+		{"invalid home dir", []string{"genesis", "export", "--home=foo"}, true, "no such file or directory"},
+		{"should export state to the specified file", []string{"genesis", "export", fmt.Sprintf("--output-document=%s", exportFile), "--home", sut.nodePath(0)}, false, ""},
+	}
+
+	for _, tc := range testCases {
+		if tc.expErr {
+			assertOutput := func(_ assert.TestingT, gotErr error, gotOutputs ...interface{}) bool {
+				require.Contains(t, gotOutputs[0], tc.errMsg)
+				return false
+			}
+			cli.WithRunErrorMatcher(assertOutput).RunCommandWithArgs(tc.args...)
+		} else {
+			cli.RunCommandWithArgs(tc.args...)
+			require.FileExists(t, exportFile)
+			err := os.Remove(exportFile)
+			require.NoError(t, err)
+		}
+	}
+}

tests/systemtests/system.go

@@ -35,6 +35,8 @@ var (
 
 	// ExecBinaryUnversionedRegExp regular expression to extract the unversioned binary name
 	ExecBinaryUnversionedRegExp = regexp.MustCompile(`^(\w+)-?.*$`)
+
+	MaxGas = 10_000_000
 )
 
 type TestnetInitializer interface {
@@ -130,7 +132,7 @@ func (s *SystemUnderTest) SetupChain() {
 		panic(fmt.Sprintf("failed to load genesis: %s", err))
 	}
 
-	genesisBz, err = sjson.SetRawBytes(genesisBz, "consensus.params.block.max_gas", []byte(fmt.Sprintf(`"%d"`, 10_000_000)))
+	genesisBz, err = sjson.SetRawBytes(genesisBz, "consensus.params.block.max_gas", []byte(fmt.Sprintf(`"%d"`, MaxGas)))
 	if err != nil {
 		panic(fmt.Sprintf("failed to set block max gas: %s", err))
 	}