add unit tests for params command

Author: edjroz

x/dkim/client/cli/cli_test.go

@@ -211,6 +211,45 @@ func TestGenerateDkimPublicKey(t *testing.T) {
 	}()
 }
 
+func TestGetParams(t *testing.T) {
+	cmd := cli.GetParams()
+	require.NotNil(t, cmd)
+	require.Equal(t, "params", cmd.Use)
+	require.Equal(t, "Query DKIM module parameters", cmd.Short)
+	require.NotEmpty(t, cmd.Long)
+	require.NotEmpty(t, cmd.Example)
+
+	// Test that command has RunE function defined
+	require.NotNil(t, cmd.RunE)
+
+	// Test command structure
+	require.NotNil(t, cmd.Flags())
+
+	// Test args validation - params takes no args (cobra.NoArgs)
+	t.Run("args validator with 0 args", func(t *testing.T) {
+		err := cmd.Args(cmd, []string{})
+		require.NoError(t, err, "should accept no args")
+	})
+
+	t.Run("args validator with 1 arg should fail", func(t *testing.T) {
+		err := cmd.Args(cmd, []string{"extra"})
+		require.Error(t, err, "should reject any args")
+	})
+
+	t.Run("args validator with 2 args should fail", func(t *testing.T) {
+		err := cmd.Args(cmd, []string{"arg1", "arg2"})
+		require.Error(t, err, "should reject any args")
+	})
+
+	// Call RunE to ensure coverage - expect panic/error without context
+	func() {
+		defer func() {
+			_ = recover() // Ignore panics from missing context
+		}()
+		_ = cmd.RunE(cmd, []string{})
+	}()
+}
+
 func TestGenerateDkimPubKeyMsg(t *testing.T) {
 	t.Run("with invalid domain/selector (DNS lookup fails)", func(t *testing.T) {
 		// Testing with a domain that won't have DKIM records
@@ -945,6 +984,24 @@ func TestGetQueryCmdIncludesGenerateDkim(t *testing.T) {
 	require.Contains(t, generateCmd.Aliases, "gdkim")
 }
 
+func TestGetQueryCmdIncludesParams(t *testing.T) {
+	queryCmd := cli.GetQueryCmd()
+
+	// Find the params subcommand
+	var paramsCmd *cobra.Command
+	for _, subCmd := range queryCmd.Commands() {
+		if subCmd.Use == "params" {
+			paramsCmd = subCmd
+			break
+		}
+	}
+
+	require.NotNil(t, paramsCmd, "params should be a subcommand of query")
+	require.Equal(t, "Query DKIM module parameters", paramsCmd.Short)
+	require.NotEmpty(t, paramsCmd.Long)
+	require.NotEmpty(t, paramsCmd.Example)
+}
+
 func TestGenerateDkimPublicKeyInQueryCmdTree(t *testing.T) {
 	queryCmd := cli.GetQueryCmd()