test: add some more tests

Signed-off-by: Matthew Rose <matthew.rose@maxkelsen.com>

pkg/generator/generator_test.go

@@ -0,0 +1,39 @@
+/*
+Copyright © 2021 Matt Rose <matthewrose153@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+package generator_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/matty-rose/gha-docs/pkg/generator"
+)
+
+func TestInvalidFormat(t *testing.T) {
+	t.Parallel()
+
+	g, err := generator.New("invalid")
+
+	assert.Nil(t, g)
+	assert.Error(t, err)
+}

pkg/parser/parser_test.go

@@ -73,3 +73,21 @@ func TestParseUses(t *testing.T) {
 
 	assert.Len(t, action.Uses, 3)
 }
+
+func TestNoFile(t *testing.T) {
+	t.Parallel()
+
+	action, err := parser.Parse("./testdata/doesnt_exist.yaml")
+
+	assert.Nil(t, action)
+	assert.Error(t, err)
+}
+
+func TestInvalidYAML(t *testing.T) {
+	t.Parallel()
+
+	action, err := parser.Parse("./testdata/invalid.yaml")
+
+	assert.Nil(t, action)
+	assert.Error(t, err)
+}

pkg/parser/testdata/invalid.yaml

@@ -0,0 +1 @@
+some invalid text}