48 lines
1.7 KiB
Go
48 lines
1.7 KiB
Go
package format
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import "testing"
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func TestDocGroupFlatWhenFits(t *testing.T) {
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d := Group(Concat(Text("WHERE"), Indent(Concat(Line(), Text("a = 1"), Line(), Text("AND b = 2")))))
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if got, want := Render(d, 80, " ", "\n"), "WHERE a = 1 AND b = 2"; got != want {
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t.Errorf("flat: got %q want %q", got, want)
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}
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if got, want := Render(d, 10, " ", "\n"), "WHERE\n a = 1\n AND b = 2"; got != want {
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t.Errorf("broken: got %q want %q", got, want)
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}
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if got, want := Render(d, 0, " ", "\n"), "WHERE a = 1 AND b = 2"; got != want {
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t.Errorf("unlimited: got %q want %q", got, want)
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}
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}
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func TestDocNewlineInTextForcesBreak(t *testing.T) {
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d := Group(Concat(Text("x"), Line(), Text("(\n y)")))
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if got, want := Render(d, 80, " ", "\n"), "x\n(\n y)"; got != want {
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t.Errorf("got %q want %q", got, want)
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}
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}
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func TestDocIfBreakAndSoftLine(t *testing.T) {
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d := Group(Concat(Text("f("), Indent(Concat(SoftLine(), Text("a, b"))), SoftLine(), IfBreak(Text(" -- long"), Text(""))))
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if got, want := Render(d, 80, " ", "\n"), "f(a, b"; got != want {
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t.Errorf("flat: got %q want %q", got, want)
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}
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if got, want := Render(d, 3, " ", "\n"), "f(\n a, b\n -- long"; got != want {
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t.Errorf("broken: got %q want %q", got, want)
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}
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}
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func TestDocTrailingTextCountsTowardFit(t *testing.T) {
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d := Concat(Group(Concat(Text("aaa"), Line(), Text("bbb"))), Text(";;;;"))
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if got, want := Render(d, 10, " ", "\n"), "aaa\nbbb;;;;"; got != want {
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t.Errorf("got %q want %q", got, want)
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}
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}
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func TestDocHardLineForcesBreakAndSkipsBlankIndent(t *testing.T) {
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d := Group(Concat(Text("("), Indent(Concat(HardLine(), Lines("a\n\nb", "\n"))), HardLine(), Text(")")))
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if got, want := Render(d, 0, " ", "\n"), "(\n a\n\n b\n)"; got != want {
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t.Errorf("got %q want %q", got, want)
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}
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}
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