feat: add option features to skip tests (#210)

This change adds features map to option for skipping unsupported tests
based on supported features.

Signed-off-by: Austin Vazquez <[email protected]>

option/modifier.go

@@ -30,3 +30,12 @@ func Env(env []string) Modifier {
 		o.env = env
 	})
 }
+
+// WithNoEnvironmentVariablePassthrough denotes the option does not support environment variable passthrough.
+//
+// This is useful for disabling tests that require this feature.
+func WithNoEnvironmentVariablePassthrough() Modifier {
+	return newFuncModifier(func(o *Option) {
+		delete(o.features, environmentVariablePassthrough)
+	})
+}

option/option.go

@@ -12,15 +12,22 @@ import (
 	"strings"
 )
 
+type feature int
+
+const (
+	environmentVariablePassthrough feature = iota
+)
+
 // Option customizes how tests are run.
 //
 // If a testing function needs special customizations other than the ones specified in Option,
 // we can use composition to extend it.
 // For example, to test login functionality,
 // we may create a struct named LoginOption that embeds Option and contains additional fields like Username and Password.
 type Option struct {
-	subject []string
-	env     []string
+	subject  []string
+	env      []string
+	features map[feature]bool
 }
 
 // New does some sanity checks on the arguments before initializing an Option.
@@ -36,7 +43,7 @@ func New(subject []string, modifiers ...Modifier) (*Option, error) {
 		return nil, errors.New("missing subject")
 	}
 
-	o := &Option{subject: subject}
+	o := &Option{subject: subject, features: map[feature]bool{environmentVariablePassthrough: true}}
 	for _, modifier := range modifiers {
 		modifier.modify(o)
 	}
@@ -80,3 +87,10 @@ func containsEnv(envs []string, targetEnvKey string) (int, bool) {
 
 	return -1, false
 }
+
+// SupportsEnvVarPassthrough is used by tests to check if the option
+// supports [feature.environmentVariablePassthrough].
+func (o *Option) SupportsEnvVarPassthrough() bool {
+	support, ok := o.features[environmentVariablePassthrough]
+	return ok && support
+}

tests/compose_build.go

@@ -45,6 +45,10 @@ func ComposeBuild(o *option.Option) {
 		})
 
 		ginkgo.It("should build services defined in the compose file specified by the COMPOSE_FILE environment variable", func() {
+			if !o.SupportsEnvVarPassthrough() {
+				ginkgo.Skip("Test requires option environment variable passthrough")
+			}
+
 			envKey := "COMPOSE_FILE"
 			o.UpdateEnv(envKey, composeFilePath)