Add first implementation of Node, El, Attr, Text

1 files changed, 75 insertions, 0 deletions

diff --git a/gomponents_test.go b/gomponents_test.go
new file mode 100644
index 0000000..21ab30a
--- /dev/null
+++ b/gomponents_test.go
@@ -0,0 +1,75 @@
+package gomponents_test
+
+import (
+	"testing"
+
+	g "github.com/maragudk/gomponents"
+)
+
+func TestAttr(t *testing.T) {
+	t.Run("renders just the local name with one argument", func(t *testing.T) {
+		a := g.Attr("required")
+		equal(t, " required", a.Render())
+	})
+
+	t.Run("renders the name and value when given two arguments", func(t *testing.T) {
+		a := g.Attr("id", "hat")
+		equal(t, ` id="hat"`, a.Render())
+	})
+
+	t.Run("panics with more than two arguments", func(t *testing.T) {
+		called := false
+		defer func() {
+			if err := recover(); err != nil {
+				called = true
+			}
+		}()
+		g.Attr("name", "value", "what is this?")
+		if !called {
+			t.FailNow()
+		}
+	})
+}
+
+func TestEl(t *testing.T) {
+	t.Run("renders an empty element if no children given", func(t *testing.T) {
+		e := g.El("div")
+		equal(t, "<div/>", e.Render())
+	})
+
+	t.Run("renders an empty element if only attributes given as children", func(t *testing.T) {
+		e := g.El("div", g.Attr("class", "hat"))
+		equal(t, `<div class="hat"/>`, e.Render())
+	})
+
+	t.Run("renders an element, attributes, and element children", func(t *testing.T) {
+		e := g.El("div", g.Attr("class", "hat"), g.El("span"))
+		equal(t, `<div class="hat"><span/></div>`, e.Render())
+	})
+
+	t.Run("renders attributes at the correct place regardless of placement in parameter list", func(t *testing.T) {
+		e := g.El("div", g.El("span"), g.Attr("class", "hat"))
+		equal(t, `<div class="hat"><span/></div>`, e.Render())
+	})
+}
+
+func TestText(t *testing.T) {
+	t.Run("renders escaped text", func(t *testing.T) {
+		e := g.Text("<div/>")
+		equal(t, "&lt;div/&gt;", e.Render())
+	})
+}
+
+func TestRaw(t *testing.T) {
+	t.Run("renders raw text", func(t *testing.T) {
+		e := g.Raw("<div/>")
+		equal(t, "<div/>", e.Render())
+	})
+}
+
+func equal(t *testing.T, expected, actual string) {
+	if expected != actual {
+		t.Errorf("expected %v but got %v", expected, actual)
+		t.FailNow()
+	}
+}