Checking in vendor folder for ease of using go get.

vendor/github.com/spf13/cobra/cobra_test.go

@@ -0,0 +1,22 @@
+package cobra
+
+import (
+	"testing"
+	"text/template"
+)
+
+func TestAddTemplateFunctions(t *testing.T) {
+	AddTemplateFunc("t", func() bool { return true })
+	AddTemplateFuncs(template.FuncMap{
+		"f": func() bool { return false },
+		"h": func() string { return "Hello," },
+		"w": func() string { return "world." }})
+
+	c := &Command{}
+	c.SetUsageTemplate(`{{if t}}{{h}}{{end}}{{if f}}{{h}}{{end}} {{w}}`)
+
+	const expected = "Hello, world."
+	if got := c.UsageString(); got != expected {
+		t.Errorf("Expected UsageString: %v\nGot: %v", expected, got)
+	}
+}