Ignore files matching patterns in .stignore (fixes #7)

model/walk_test.go

@@ -2,6 +2,7 @@ package model
 
 import (
 	"fmt"
+	"reflect"
 	"testing"
 	"time"
 )
@@ -16,9 +17,13 @@ var testdata = []struct {
 	{"foo", 7, "aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f"},
 }
 
+var correctIgnores = map[string][]string{
+	"": {".*", "quux"},
+}
+
 func TestWalk(t *testing.T) {
 	m := NewModel("testdata")
-	files := m.Walk(false)
+	files, ignores := m.Walk(false)
 
 	if l1, l2 := len(files), len(testdata); l1 != l2 {
 		t.Fatalf("Incorrect number of walked files %d != %d", l1, l2)
@@ -39,4 +44,59 @@ func TestWalk(t *testing.T) {
 			t.Errorf("Unrealistic modtime %d for test %d", mt, i)
 		}
 	}
+
+	if !reflect.DeepEqual(ignores, correctIgnores) {
+		t.Errorf("Incorrect ignores\n  %v\n  %v", correctIgnores, ignores)
+	}
+}
+
+func TestFilteredWalk(t *testing.T) {
+	m := NewModel("testdata")
+	files := m.FilteredWalk(false)
+
+	if len(files) != 2 {
+		t.Fatalf("Incorrect number of walked filtered files %d != 2", len(files))
+	}
+	if files[0].Name != "bar" {
+		t.Error("Incorrect first file", files[0])
+	}
+	if files[1].Name != "foo" {
+		t.Error("Incorrect second file", files[1])
+	}
+}
+
+func TestIgnore(t *testing.T) {
+	var patterns = map[string][]string{
+		"":        {"t2"},
+		"foo":     {"bar", "z*"},
+		"foo/baz": {"quux", ".*"},
+	}
+	var files = []File{
+		{Name: "foo/bar"},
+		{Name: "foo/quux"},
+		{Name: "foo/zuux"},
+		{Name: "foo/qzuux"},
+		{Name: "foo/baz/t1"},
+		{Name: "foo/baz/t2"},
+		{Name: "foo/baz/bar"},
+		{Name: "foo/baz/quuxa"},
+		{Name: "foo/baz/aquux"},
+		{Name: "foo/baz/.quux"},
+		{Name: "foo/baz/zquux"},
+		{Name: "foo/baz/quux"},
+		{Name: "foo/bazz/quux"},
+	}
+	var remaining = []File{
+		{Name: "foo/quux"},
+		{Name: "foo/qzuux"},
+		{Name: "foo/baz/t1"},
+		{Name: "foo/baz/quuxa"},
+		{Name: "foo/baz/aquux"},
+		{Name: "foo/bazz/quux"},
+	}
+
+	var filtered = ignoreFilter(patterns, files)
+	if !reflect.DeepEqual(filtered, remaining) {
+		t.Errorf("Filtering mismatch\n  %v\n  %v", remaining, filtered)
+	}
 }