railpack

1package core2 3import (4	"encoding/json"5	"testing"6 7	"github.com/google/go-cmp/cmp"8 9	"github.com/railwayapp/railpack/core/app"10	"github.com/railwayapp/railpack/core/config"11	"github.com/stretchr/testify/require"12)13 14func TestGenerateConfigFromEnvironment(t *testing.T) {15	tests := []struct {16		name     string17		envVars  map[string]string18		expected string19	}{20		{21			name:    "empty environment",22			envVars: map[string]string{},23			expected: `{24				"steps": {},25				"packages": {},26				"caches": {},27				"deploy": {}28			}`,29		},30 31		{32			name: "kitchen sink",33			envVars: map[string]string{34				"RAILPACK_INSTALL_CMD":         "npm install",35				"RAILPACK_BUILD_CMD":           "npm run build",36				"RAILPACK_START_CMD":           "npm start",37				"RAILPACK_PACKAGES":            "node@18 python@3.9",38				"RAILPACK_BUILD_APT_PACKAGES":  "build-essential libssl-dev",39				"RAILPACK_DEPLOY_APT_PACKAGES": "libssl-dev",40			},41			expected: `{42				"steps": {43					"install": {44						"name": "install",45						"commands": [46							{ "src": ".", "dest": "." },47							"npm install"48						],49						"secrets": ["*"],50						"assets": {},51						"variables": {}52					},53					"build": {54						"name": "build",55						"commands": [56							{ "src": ".", "dest": "." },57							"npm run build"58						],59						"secrets": ["*"],60						"assets": {},61						"variables": {}62					}63				},64				"buildAptPackages": ["build-essential", "libssl-dev"],65				"packages": {66					"node": "18",67					"python": "3.9"68				},69				"caches": {},70				"deploy": {71					"startCommand": "npm start",72					"aptPackages": ["libssl-dev"]73				},74				"secrets": ["RAILPACK_BUILD_APT_PACKAGES", "RAILPACK_BUILD_CMD", "RAILPACK_DEPLOY_APT_PACKAGES",75					"RAILPACK_INSTALL_CMD", "RAILPACK_PACKAGES", "RAILPACK_START_CMD"]76			}`,77		},78 79		{80			name: "unversioned packages",81			envVars: map[string]string{82				"RAILPACK_PACKAGES": "jq pipx:httpie@3.2.4",83			},84			expected: `{85				"steps": {},86				"packages": {87					"jq": "latest",88					"pipx:httpie": "3.2.4"89				},90				"caches": {},91				"deploy": {},92				"secrets": ["RAILPACK_PACKAGES"]93			}`,94		},95	}96 97	for _, tt := range tests {98		t.Run(tt.name, func(t *testing.T) {99			env := app.NewEnvironment(&tt.envVars)100			gotConfig := GenerateConfigFromEnvironment(env)101 102			serializedConfig := config.Config{}103			err := json.Unmarshal([]byte(tt.expected), &serializedConfig)104			require.NoError(t, err)105 106			if diff := cmp.Diff(serializedConfig, *gotConfig); diff != "" {107				t.Errorf("GenerateConfigFromEnvironment() mismatch (-want +got):\n%s", diff)108			}109		})110	}111}112