Add integration test for host command

cli.go

@@ -21,6 +21,7 @@ func cmdList(stdout io.Writer, stderr io.Writer, s *state) int {
 		// created using the count parameter.
 		groups[res.Name] = append(groups[res.Name], res.Address())
 
+		// Add the instance by its full name, including the counter.
 		groups[res.NameWithCounter()] = []string{res.Address()}
 	}
 

parser_test.go

@@ -133,8 +133,14 @@ const expectedListOutput = `
 }
 `
 
-func TestIntegration(t *testing.T) {
+const expectedHostOneOutput = `
+{
+	"id":"i-aaaaaaaa",
+	"private_ip":"10.0.0.1"
+}
+`
 
+func TestListCommand(t *testing.T) {
 	var s state
 	r := strings.NewReader(exampleStateFile)
 	err := s.read(r)
@@ -152,6 +158,24 @@ func TestIntegration(t *testing.T) {
 	assert.Equal(t, exp, act)
 }
 
+func TestHostCommand(t *testing.T) {
+	var s state
+	r := strings.NewReader(exampleStateFile)
+	err := s.read(r)
+	assert.Nil(t, err)
+
+	// Run the command, capture the output
+	var stdout, stderr bytes.Buffer
+	exitCode := cmdHost(&stdout, &stderr, &s, "10.0.0.1")
+	assert.Equal(t, 0, exitCode)
+	assert.Equal(t, "", stderr.String())
+
+	var exp, act interface{}
+	json.Unmarshal([]byte(expectedHostOneOutput), &exp)
+	json.Unmarshal([]byte(stdout.String()), &act)
+	assert.Equal(t, exp, act)
+}
+
 func TestStateRead(t *testing.T) {
 	var s state
 	r := strings.NewReader(exampleStateFile)