package formatter import ( "bytes" "testing" "github.com/docker/docker/api/types/container" "github.com/docker/docker/pkg/archive" "github.com/gotestyourself/gotestyourself/assert" is "github.com/gotestyourself/gotestyourself/assert/cmp" ) func TestDiffContextFormatWrite(t *testing.T) { // Check default output format (verbose and non-verbose mode) for table headers cases := []struct { context Context expected string }{ { Context{Format: NewDiffFormat("table")}, `CHANGE TYPE PATH C /var/log/app.log A /usr/app/app.js D /usr/app/old_app.js `, }, { Context{Format: NewDiffFormat("table {{.Path}}")}, `PATH /var/log/app.log /usr/app/app.js /usr/app/old_app.js `, }, { Context{Format: NewDiffFormat("{{.Type}}: {{.Path}}")}, `C: /var/log/app.log A: /usr/app/app.js D: /usr/app/old_app.js `, }, } diffs := []container.ContainerChangeResponseItem{ {Kind: archive.ChangeModify, Path: "/var/log/app.log"}, {Kind: archive.ChangeAdd, Path: "/usr/app/app.js"}, {Kind: archive.ChangeDelete, Path: "/usr/app/old_app.js"}, } for _, testcase := range cases { out := bytes.NewBufferString("") testcase.context.Output = out err := DiffWrite(testcase.context, diffs) if err != nil { assert.Error(t, err, testcase.expected) } else { assert.Check(t, is.Equal(testcase.expected, out.String())) } } }