html/wrap_test.go

package html_test

import (
	"bytes"
	"code.squareroundforest.org/arpio/html"
	. "code.squareroundforest.org/arpio/html/tags"
	"testing"
)

func TestWrap(t *testing.T) {
	t.Run("broken unicode", func(t *testing.T) {
		b := []byte{'f', 0xc2, 'o', 'o'}
		span := Span(string(b))

		var buf bytes.Buffer
		if err := html.RenderIndent(&buf, "\t", 0, span); err != nil {
			t.Fatal(err)
		}

		if buf.String() != "<span>foo</span>" {
			t.Fatal(buf.String(), buf.Len(), len("<span>foo</span>"), buf.Bytes(), []byte("<span>foo</span>"))
		}
	})

	t.Run("multiple words", func(t *testing.T) {
		span := Span("foo bar baz")

		var buf bytes.Buffer
		if err := html.RenderIndent(&buf, "\t", 2, span); err != nil {
			t.Fatal(err)
		}

		if buf.String() != "<span>foo\nbar\nbaz</span>" {
			t.Fatal(buf.String())
		}
	})

	t.Run("tag not split", func(t *testing.T) {
		span := Span("foo ", Span("bar"), " baz")

		var buf bytes.Buffer
		if err := html.RenderIndent(&buf, "\t", 2, span); err != nil {
			t.Fatal(err)
		}

		if buf.String() != "<span>foo\n<span>bar</span>\nbaz</span>" {
			t.Fatal()
		}
	})

	t.Run("normal text", func(t *testing.T) {
		div := Div(Span("foo bar baz qux quux corge"))

		var buf bytes.Buffer
		if err := html.RenderIndent(&buf, "\t", 9, div); err != nil {
			t.Fatal(err)
		}

		if buf.String() != "<div>\n\t<span>foo\n\tbar baz\n\tqux quux\n\tcorge</span>\n</div>\n" {
			t.Fatal(buf.String())
		}
	})

	t.Run("inline space preserved", func(t *testing.T) {
		div := Div(Span("foo"), " ", Span("bar"))

		var buf bytes.Buffer
		if err := html.RenderIndent(&buf, "\t", 0, div); err != nil {
			t.Fatal(err)
		}

		if buf.String() != "<div>\n\t<span>foo</span> <span>bar</span>\n</div>\n" {
			t.Fatal(buf.String())
		}
	})
}