Add more simple render tests

tests/01_render_test.go

@@ -143,3 +143,69 @@ func TestRenderArrayOfTemplateHash(t *testing.T) {
 
 	assert.Equal(t, outputRender, render, "Rendered output does not match expected output")
 }
+
+func TestRenderNonExistentFile(t *testing.T) {
+	nest, err := templatenest.New(templatenest.Option{TemplateDir: "templates"})
+	if err != nil {
+		t.Fatalf("Failed to initialize TemplateNest: %+v", err)
+	}
+
+	page := templatenest.Hash{"TEMPLATE": "this-template-file-does-not-exist"}
+
+	_, err = nest.Render(page)
+	if assert.NotNil(t, err) {
+		expected := "error getting file info:"
+		assert.Equal(t, expected, err.Error()[:len(expected)])
+	}
+}
+
+func TestRenderNoNameLabel(t *testing.T) {
+	nest, err := templatenest.New(templatenest.Option{TemplateDir: "templates"})
+	if err != nil {
+		t.Fatalf("Failed to initialize TemplateNest: %+v", err)
+	}
+
+	page := templatenest.Hash{"variable": "Simple Variable"}
+
+	_, err = nest.Render(page)
+	if assert.NotNil(t, err) {
+		expected := "encountered hash with no name label"
+		assert.Equal(t, expected, err.Error()[:len(expected)])
+	}
+}
+
+func TestRenderSimplePageArrays(t *testing.T) {
+	nest, err := templatenest.New(templatenest.Option{
+		TemplateDir:   "templates",
+		NoEscapeInput: true,
+	})
+	if err != nil {
+		t.Fatalf("Failed to initialize TemplateNest: %+v", err)
+	}
+
+	page := templatenest.Hash{
+		"TEMPLATE": "00-simple-page",
+		"variable": "Simple Variable",
+		"simple_component": []interface{}{
+			templatenest.Hash{
+				"TEMPLATE": "01-simple-component",
+				"variable": "Simple Variable in Simple Component",
+			},
+			"<strong>Another test</strong>",
+			[]interface{}{
+				templatenest.Hash{
+					"TEMPLATE": "01-simple-component",
+					"variable": "Simple Variable in Simple Component",
+				},
+				"<strong>Another nested test 2</strong>",
+			},
+		},
+	}
+
+	outputPage := templatenest.Hash{"TEMPLATE": "output/12-simple-page-arrays"}
+
+	render := nest.MustRender(page)
+	outputRender := nest.MustRender(outputPage)
+
+	assert.Equal(t, outputRender, render, "Rendered output does not match expected output")
+}