add tests to pkg/commands

pkg/commands/os_test.go

@@ -1,16 +1,76 @@
 package commands
 
-import "testing"
+import (
+	"testing"
 
-func TestQuote(t *testing.T) {
-	osCommand := &OSCommand{
-		Log:      nil,
-		Platform: getPlatform(),
+	"github.com/Sirupsen/logrus"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRunCommandWithOutput(t *testing.T) {
+	type scenario struct {
+		command string
+		test    func(string, error)
 	}
-	test := "hello `test`"
-	expected := osCommand.Platform.escapedQuote + "hello \\`test\\`" + osCommand.Platform.escapedQuote
-	test = osCommand.Quote(test)
-	if test != expected {
-		t.Error("Expected " + expected + ", got " + test)
+
+	scenarios := []scenario{
+		{
+			"echo -n '123'",
+			func(output string, err error) {
+				assert.NoError(t, err)
+				assert.EqualValues(t, "123", output)
+			},
+		},
+		{
+			"rmdir unexisting-folder",
+			func(output string, err error) {
+				assert.Regexp(t, ".*No such file or directory.*", err.Error())
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		s.test(NewOSCommand(logrus.New()).RunCommandWithOutput(s.command))
 	}
 }
+
+func TestRunCommand(t *testing.T) {
+	type scenario struct {
+		command string
+		test    func(error)
+	}
+
+	scenarios := []scenario{
+		{
+			"rmdir unexisting-folder",
+			func(err error) {
+				assert.Regexp(t, ".*No such file or directory.*", err.Error())
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		s.test(NewOSCommand(logrus.New()).RunCommand(s.command))
+	}
+}
+
+func TestQuote(t *testing.T) {
+	osCommand := NewOSCommand(logrus.New())
+
+	actual := osCommand.Quote("hello `test`")
+
+	expected := osCommand.Platform.escapedQuote + "hello \\`test\\`" + osCommand.Platform.escapedQuote
+
+	assert.EqualValues(t, expected, actual)
+}
+
+func TestUnquote(t *testing.T) {
+	osCommand := NewOSCommand(logrus.New())
+
+	actual := osCommand.Unquote(`hello "test"`)
+
+	expected := "hello test"
+
+	assert.EqualValues(t, expected, actual)
+}