Add some very, very basic tests to the parser package

example/complexDoc.rst

@@ -0,0 +1,72 @@
+Title
+=====
+
+Subtitle
+--------
+
+Paragraphs are separated by a blank line.
+
+Two lines of text should be enough to make up an entire
+paragraph.
+
+In some formats, this is represented using a blank line.
+
+*emphasis*
+
+**strong emphasis**
+
+`*literal text*`
+
+* item 1
+* item 2
+
+1. Item 1
+2. Item 2
+
+#. Item 1
+#. Item 2
+
+`inline code`
+
+.. code-block:: python
+
+    def hello_world():
+        print("Hello, world!")
+
+.. image:: /path/to/image.png
+   :alt: Alternative text
+   :width: 200px
+   :height: 100px
+
+.. _label:
+
+This is a reference to a label.
+
+.. [1] Citation 1
+
+.. [2] Citation 2
+.. note::
+   This is a note.
+
+.. warning::
+   This is a warning.
+
+.. versionadded:: 1.0
+   This feature was added in version 1.0.
+
+.. versionchanged:: 1.0
+   This feature was changed in version 1.0.
+
+.. deprecated:: 1.0
+   This feature is deprecated since version 1.0.
+
+.. seealso::
+   See also this other thing.
+
+.. todo::
+   This is a todo item.
+
+.. math::
+   E = mc^2
+
+.. raw:: html

pkg/parser/parser_test.go

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+package parser
+
+// test the functionality of the parser package using the test package
+// Use example restructuredText files embedded in the test functions
+
+import (
+	"testing"
+
+	"i2pgit.org/idk/go-rst/pkg/translator"
+)
+
+const simpleDoc = "example/doc.rst"
+const complexDoc = "example/complexDoc.rst"
+
+func TestParse(t *testing.T) {
+	noopTranslator := translator.NewNoopTranslator()
+	parser := NewParser(noopTranslator)
+	doc := parser.Parse(simpleDoc)
+	if doc == nil {
+		t.Errorf("Expected a document, got nil")
+	}
+}
+
+func TestParseTwo(t *testing.T) {
+	noopTranslator := translator.NewNoopTranslator()
+	parser := NewParser(noopTranslator)
+	doc := parser.Parse(complexDoc)
+	if doc == nil {
+		t.Errorf("Expected a document, got nil")
+	}
+}
+
+func TestParseEmpty(t *testing.T) {
+	noopTranslator := translator.NewNoopTranslator()
+	parser := NewParser(noopTranslator)
+	doc := parser.Parse("")
+	if len(doc) > 0 {
+		t.Errorf("Expected empty, got a document")
+	}
+}
+
+func TestParseNilTranslatorEmptyInput(t *testing.T) {
+	parser := NewParser(nil)
+	doc := parser.Parse("")
+	if len(doc) > 0 {
+		t.Errorf("Expected empty, got a document")
+	}
+}