package templates import ( "bytes" "testing" "github.com/stretchr/testify/assert" ) // GitHub #32120 func TestParseJSONFunctions(t *testing.T) { tm, err := Parse(`{{json .Ports}}`) assert.NoError(t, err) var b bytes.Buffer assert.NoError(t, tm.Execute(&b, map[string]string{"Ports": "0.0.0.0:2->8/udp"})) want := "\"0.0.0.0:2->8/udp\"" assert.Equal(t, want, b.String()) } func TestParseStringFunctions(t *testing.T) { tm, err := Parse(`{{join (split . ":") "/"}}`) assert.NoError(t, err) var b bytes.Buffer assert.NoError(t, tm.Execute(&b, "text:with:colon")) want := "text/with/colon" assert.Equal(t, want, b.String()) } func TestNewParse(t *testing.T) { tm, err := NewParse("foo", "this is a {{ . }}") assert.NoError(t, err) var b bytes.Buffer assert.NoError(t, tm.Execute(&b, "string")) want := "this is a string" assert.Equal(t, want, b.String()) } func TestParseTruncateFunction(t *testing.T) { source := "tupx5xzf6hvsrhnruz5cr8gwp" testCases := []struct { template string expected string }{ { template: `{{truncate . 5}}`, expected: "tupx5", }, { template: `{{truncate . 25}}`, expected: "tupx5xzf6hvsrhnruz5cr8gwp", }, { template: `{{truncate . 30}}`, expected: "tupx5xzf6hvsrhnruz5cr8gwp", }, { template: `{{pad . 3 3}}`, expected: " tupx5xzf6hvsrhnruz5cr8gwp ", }, } for _, testCase := range testCases { tm, err := Parse(testCase.template) assert.NoError(t, err) t.Run("Non Empty Source Test with template: "+testCase.template, func(t *testing.T) { var b bytes.Buffer assert.NoError(t, tm.Execute(&b, source)) assert.Equal(t, testCase.expected, b.String()) }) t.Run("Empty Source Test with template: "+testCase.template, func(t *testing.T) { var c bytes.Buffer assert.NoError(t, tm.Execute(&c, "")) assert.Equal(t, "", c.String()) }) t.Run("Nil Source Test with template: "+testCase.template, func(t *testing.T) { var c bytes.Buffer assert.Error(t, tm.Execute(&c, nil)) assert.Equal(t, "", c.String()) }) } }