added tests

pkg/filter/dump_test.go

@@ -0,0 +1,24 @@
+package filter
+
+import (
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+
+	"github.com/flosch/pongo2"
+
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestDumpFilter(t *testing.T) {
+	Convey("set context", t, func() {
+		ctx := pongo2.Context{
+			"testvar": "test",
+		}
+		Convey("parse template", func() {
+			output, err := pongo2.RenderTemplateString("{{ testvar|safe|dump }}", ctx)
+			So(err, ShouldBeNil)
+			So(output, ShouldEqual, spew.Sdump("test"))
+		})
+	})
+}

pkg/filter/json_test.go

@@ -0,0 +1,50 @@
+package filter
+
+import (
+	"math"
+	"testing"
+
+	"github.com/flosch/pongo2"
+
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestJSONFilter(t *testing.T) {
+	Convey("set context", t, func() {
+		ctx := pongo2.Context{
+			"teststr": "test",
+			"testmap": map[string]interface{}{
+				"float": 1.23,
+				"int":   5,
+				"str":   "test",
+			},
+			"testerr": math.Inf(1),
+		}
+		Convey("parse template", func() {
+			output, err := pongo2.RenderTemplateString("{{ teststr|safe|json }}", ctx)
+			So(err, ShouldBeNil)
+			So(output, ShouldEqual, `"test"`)
+
+			output, err = pongo2.RenderTemplateString("{{ testmap|safe|json }}", ctx)
+			So(err, ShouldBeNil)
+			So(output, ShouldEqual, `{"float":1.23,"int":5,"str":"test"}`)
+
+			output, err = pongo2.RenderTemplateString(`{{ testmap|safe|json:"pretty" }}`, ctx)
+			So(err, ShouldBeNil)
+			So(output, ShouldEqual, `{
+    "float": 1.23,
+    "int": 5,
+    "str": "test"
+}`)
+
+			output, err = pongo2.RenderTemplateString("{{ testnil|safe|json }}", ctx)
+			So(err, ShouldBeNil)
+			So(output, ShouldEqual, `null`)
+
+			output, err = pongo2.RenderTemplateString("{{ testerr|safe|json }}", ctx)
+			So(err, ShouldNotBeNil)
+			So(output, ShouldEqual, ``)
+
+		})
+	})
+}