New static configuration loading system.

Co-authored-by: Mathieu Lonjaret <mathieu.lonjaret@gmail.com>

pkg/cli/help_test.go

@@ -0,0 +1,211 @@
+package cli
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestPrintHelp(t *testing.T) {
+	testCases := []struct {
+		desc     string
+		command  *Command
+		expected string
+	}{
+		{
+			desc: "no sub-command, with flags",
+			command: func() *Command {
+				element := &Yo{
+					Fuu: "test",
+				}
+
+				return &Command{
+					Name:          "root",
+					Description:   "Description for root",
+					Configuration: element,
+					Run: func(args []string) error {
+						return nil
+					},
+				}
+			}(),
+			expected: `root    Description for root
+
+Usage: root [command] [flags] [arguments]
+
+Use "root [command] --help" for help on any command.
+
+Flag's usage: root [--flag=flag_argument] [-f [flag_argument]]    # set flag_argument to flag(s)
+          or: root [--flag[=true|false| ]] [-f [true|false| ]]    # set true/false to boolean flag(s)
+
+Flags:
+    --fii  (Default: "fii")
+        Fii description
+
+    --foo  (Default: "foo")
+        Foo description
+
+    --fuu  (Default: "test")
+        Fuu description
+
+    --yi  (Default: "false")
+
+    --yi.fii  (Default: "fii")
+
+    --yi.foo  (Default: "foo")
+
+    --yi.fuu  (Default: "")
+
+    --yu.fii  (Default: "fii")
+
+    --yu.foo  (Default: "foo")
+
+    --yu.fuu  (Default: "")
+
+`,
+		},
+		{
+			desc: "with sub-commands, with flags, call root help",
+			command: func() *Command {
+				element := &Yo{
+					Fuu: "test",
+				}
+
+				rootCmd := &Command{
+					Name:          "root",
+					Description:   "Description for root",
+					Configuration: element,
+					Run: func(_ []string) error {
+						return nil
+					},
+				}
+
+				err := rootCmd.AddCommand(&Command{
+					Name:          "sub1",
+					Description:   "Description for sub1",
+					Configuration: element,
+					Run: func(args []string) error {
+						return nil
+					},
+				})
+				require.NoError(t, err)
+
+				err = rootCmd.AddCommand(&Command{
+					Name:          "sub2",
+					Description:   "Description for sub2",
+					Configuration: element,
+					Run: func(args []string) error {
+						return nil
+					},
+				})
+				require.NoError(t, err)
+
+				return rootCmd
+			}(),
+			expected: `root    Description for root
+
+Usage: root [command] [flags] [arguments]
+
+Use "root [command] --help" for help on any command.
+
+Commands:
+    sub1    Description for sub1
+    sub2    Description for sub2
+
+Flag's usage: root [--flag=flag_argument] [-f [flag_argument]]    # set flag_argument to flag(s)
+          or: root [--flag[=true|false| ]] [-f [true|false| ]]    # set true/false to boolean flag(s)
+
+Flags:
+    --fii  (Default: "fii")
+        Fii description
+
+    --foo  (Default: "foo")
+        Foo description
+
+    --fuu  (Default: "test")
+        Fuu description
+
+    --yi  (Default: "false")
+
+    --yi.fii  (Default: "fii")
+
+    --yi.foo  (Default: "foo")
+
+    --yi.fuu  (Default: "")
+
+    --yu.fii  (Default: "fii")
+
+    --yu.foo  (Default: "foo")
+
+    --yu.fuu  (Default: "")
+
+`,
+		},
+		{
+			desc: "no sub-command, no flags",
+			command: func() *Command {
+				return &Command{
+					Name:          "root",
+					Description:   "Description for root",
+					Configuration: nil,
+					Run: func(args []string) error {
+						return nil
+					},
+				}
+			}(),
+			expected: `root    Description for root
+
+Usage: root [command] [flags] [arguments]
+
+Use "root [command] --help" for help on any command.
+
+`,
+		},
+		{
+			desc: "no sub-command, slice flags",
+			command: func() *Command {
+				return &Command{
+					Name:        "root",
+					Description: "Description for root",
+					Configuration: &struct {
+						Foo []struct {
+							Field string
+						}
+					}{},
+					Run: func(args []string) error {
+						return nil
+					},
+				}
+			}(),
+			expected: `root    Description for root
+
+Usage: root [command] [flags] [arguments]
+
+Use "root [command] --help" for help on any command.
+
+Flag's usage: root [--flag=flag_argument] [-f [flag_argument]]    # set flag_argument to flag(s)
+          or: root [--flag[=true|false| ]] [-f [true|false| ]]    # set true/false to boolean flag(s)
+
+Flags:
+    --foo  (Default: "")
+
+    --foo[n].field  (Default: "")
+
+`,
+		},
+	}
+
+	for _, test := range testCases {
+		test := test
+		t.Run(test.desc, func(t *testing.T) {
+			t.Parallel()
+
+			buffer := &bytes.Buffer{}
+			err := PrintHelp(buffer, test.command)
+			require.NoError(t, err)
+
+			assert.Equal(t, test.expected, buffer.String())
+		})
+	}
+}