builder/googlecompute: test config basics

builder/googlecompute/config_test.go

@@ -0,0 +1,164 @@
+package googlecompute
+
+import (
+	"testing"
+)
+
+func testConfig(t *testing.T) map[string]interface{} {
+	return map[string]interface{}{
+		"bucket_name":         "foo",
+		"client_secrets_file": testClientSecretsFile(t),
+		"private_key_file":    testPrivateKeyFile(t),
+		"project_id":          "hashicorp",
+		"source_image":        "foo",
+		"zone":                "us-east-1a",
+	}
+}
+
+func testConfigErr(t *testing.T, warns []string, err error, extra string) {
+	if len(warns) > 0 {
+		t.Fatalf("bad: %#v", warns)
+	}
+	if err == nil {
+		t.Fatalf("should error: %s", extra)
+	}
+}
+
+func testConfigOk(t *testing.T, warns []string, err error) {
+	if len(warns) > 0 {
+		t.Fatalf("bad: %#v", warns)
+	}
+	if err != nil {
+		t.Fatalf("bad: %s", err)
+	}
+}
+
+func TestConfigPrepare(t *testing.T) {
+	cases := []struct {
+		Key   string
+		Value interface{}
+		Err   bool
+	}{
+		{
+			"unknown_key",
+			"bad",
+			true,
+		},
+
+		{
+			"bucket_name",
+			nil,
+			true,
+		},
+		{
+			"bucket_name",
+			"good",
+			false,
+		},
+
+		{
+			"client_secrets_file",
+			nil,
+			true,
+		},
+		{
+			"client_secrets_file",
+			testClientSecretsFile(t),
+			false,
+		},
+		{
+			"client_secrets_file",
+			"/tmp/i/should/not/exist",
+			true,
+		},
+
+		{
+			"private_key_file",
+			nil,
+			true,
+		},
+		{
+			"private_key_file",
+			testPrivateKeyFile(t),
+			false,
+		},
+		{
+			"private_key_file",
+			"/tmp/i/should/not/exist",
+			true,
+		},
+
+		{
+			"project_id",
+			nil,
+			true,
+		},
+		{
+			"project_id",
+			"foo",
+			false,
+		},
+
+		{
+			"source_image",
+			nil,
+			true,
+		},
+		{
+			"source_image",
+			"foo",
+			false,
+		},
+
+		{
+			"zone",
+			nil,
+			true,
+		},
+		{
+			"zone",
+			"foo",
+			false,
+		},
+
+		{
+			"ssh_timeout",
+			"SO BAD",
+			true,
+		},
+		{
+			"ssh_timeout",
+			"5s",
+			false,
+		},
+
+		{
+			"state_timeout",
+			"SO BAD",
+			true,
+		},
+		{
+			"state_timeout",
+			"5s",
+			false,
+		},
+	}
+
+	for _, tc := range cases {
+		raw := testConfig(t)
+
+		if tc.Value == nil {
+			delete(raw, tc.Key)
+		} else {
+			raw[tc.Key] = tc.Value
+		}
+
+		_, warns, errs := NewConfig(raw)
+
+		if tc.Err {
+			testConfigErr(t, warns, errs, tc.Key)
+		} else {
+			testConfigOk(t, warns, errs)
+		}
+	}
+}