Support Alpine Linux #194 (#545)

* Support Alpine Linux #194

* Fix testcase

* Fix README

* Fix dep files

* Fix changelog

* Bump up version

scan/alpine_test.go

@@ -0,0 +1,75 @@
+package scan
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/future-architect/vuls/config"
+	"github.com/future-architect/vuls/models"
+)
+
+func TestParseApkInfo(t *testing.T) {
+	var tests = []struct {
+		in    string
+		packs models.Packages
+	}{
+		{
+			in: `musl-1.1.16-r14
+busybox-1.26.2-r7
+`,
+			packs: models.Packages{
+				"musl": {
+					Name:    "musl",
+					Version: "1.1.16-r14",
+				},
+				"busybox": {
+					Name:    "busybox",
+					Version: "1.26.2-r7",
+				},
+			},
+		},
+	}
+	d := newAlpine(config.ServerInfo{})
+	for i, tt := range tests {
+		pkgs, _ := d.parseApkInfo(tt.in)
+		if !reflect.DeepEqual(tt.packs, pkgs) {
+			t.Errorf("[%d] expected %v, actual %v", i, tt.packs, pkgs)
+		}
+	}
+}
+
+func TestParseApkVersion(t *testing.T) {
+	var tests = []struct {
+		in    string
+		packs models.Packages
+	}{
+		{
+			in: `Installed:                                Available:
+libcrypto1.0-1.0.1q-r0                  < 1.0.2m-r0
+libssl1.0-1.0.1q-r0                     < 1.0.2m-r0
+nrpe-2.14-r2                            < 2.15-r5
+`,
+			packs: models.Packages{
+				"libcrypto1.0": {
+					Name:       "libcrypto1.0",
+					NewVersion: "1.0.2m-r0",
+				},
+				"libssl1.0": {
+					Name:       "libssl1.0",
+					NewVersion: "1.0.2m-r0",
+				},
+				"nrpe": {
+					Name:       "nrpe",
+					NewVersion: "2.15-r5",
+				},
+			},
+		},
+	}
+	d := newAlpine(config.ServerInfo{})
+	for i, tt := range tests {
+		pkgs, _ := d.parseApkVersion(tt.in)
+		if !reflect.DeepEqual(tt.packs, pkgs) {
+			t.Errorf("[%d] expected %v, actual %v", i, tt.packs, pkgs)
+		}
+	}
+}