Each package has a test file

README.md

@@ -100,6 +100,7 @@ make lint
 gojekyll render index.md      # render a file to stdout
 gojekyll render /             # render a URL to stdout
 gojekyll variables /          # print a file or URL's variables
+./scripts/coverage && go tool cover -html=coverage.out
 ```
 
 `./scripts/gojekyll` is an alternative to the `gojekyll` executable, that uses `go run` each time it's invoked.

collections/collection.go

@@ -14,15 +14,14 @@ import (
 type Collection struct {
 	Name     string
 	Metadata templates.VariableMap
-	// context pages.Context
-	pages []pages.Page
+	pages    []pages.Page
 }
 
-// NewCollection creates a new Collection with metadata m
-func NewCollection(ctx pages.Context, name string, m templates.VariableMap) *Collection {
+// NewCollection creates a new Collection
+func NewCollection(ctx pages.Context, name string, metadata templates.VariableMap) *Collection {
 	return &Collection{
 		Name:     name,
-		Metadata: m,
+		Metadata: metadata,
 	}
 }
 

collections/collection_test.go

@@ -0,0 +1,37 @@
+package collections
+
+import (
+	"fmt"
+	"io"
+	"testing"
+
+	"github.com/osteele/gojekyll/liquid"
+	"github.com/osteele/gojekyll/templates"
+	"github.com/stretchr/testify/require"
+)
+
+var tests = []struct{ in, out string }{
+	{"pre</head>post", "pre:insertion:</head>post"},
+	{"pre:insertion:</head>post", "pre:insertion:</head>post"},
+	{"post", ":insertion:post"},
+}
+
+type MockContext struct{}
+
+func (c MockContext) FindLayout(_ string, _ *templates.VariableMap) (liquid.Template, error) {
+	return nil, fmt.Errorf("unimplemented")
+}
+func (c MockContext) IsMarkdown(_ string) bool             { return true }
+func (c MockContext) IsSassPath(_ string) bool             { return true }
+func (c MockContext) SassIncludePaths() []string           { return []string{} }
+func (c MockContext) SiteVariables() templates.VariableMap { return templates.VariableMap{} }
+func (c MockContext) SourceDir() string                    { return "." }
+func (c MockContext) TemplateEngine() liquid.Engine        { return nil }
+func (c MockContext) WriteSass(io.Writer, []byte) error    { return nil }
+
+func TestCollections(t *testing.T) {
+	ctx := MockContext{}
+	c := NewCollection(ctx, "c", templates.VariableMap{"output": true})
+	require.Equal(t, true, c.Output())
+	require.Equal(t, "_c/", c.PathPrefix())
+}

config/config_test.go

@@ -0,0 +1,21 @@
+package config
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestDefaultConfig(t *testing.T) {
+	c := Default()
+	require.Equal(t, ".", c.Source)
+	require.Equal(t, "./_site", c.Destination)
+	require.Equal(t, "_layouts", c.LayoutsDir)
+}
+
+func TestUnmarshal(t *testing.T) {
+	c := Default()
+	Unmarshal([]byte(`source: x`), &c)
+	require.Equal(t, "x", c.Source)
+	require.Equal(t, "./_site", c.Destination)
+}

server/livereload.go

@@ -30,7 +30,7 @@ func (i TagInjector) Write(b []byte) (n int, err error) {
 	return i.w.Write(b)
 }
 
-// LiveReloadInjector returns a writer that injects the Live Reload JavaScript
+// NewLiveReloadInjector returns a writer that injects the Live Reload JavaScript
 // into its wrapped content.
 func NewLiveReloadInjector(w io.Writer) io.Writer {
 	return TagInjector{w, liveReloadScriptTag}