fix: improve filtering of reserved env vars

cli/packages/cmd/cmd_test.go

@@ -0,0 +1,49 @@
+package cmd
+
+import (
+	"testing"
+
+	"github.com/Infisical/infisical-merge/packages/models"
+)
+
+func TestEnvFilter(t *testing.T) {
+
+	// some test env vars.
+	// HOME and PATH are reserved key words and should be filtered out
+	// XDG_SESSION_ID and LC_CTYPE are reserved key word prefixes and should be filtered out
+	// The filter function only checks the keys of the env map, so we dont need to set any values
+	env := map[string]models.SingleEnvironmentVariable{
+		"test":           {},
+		"test2":          {},
+		"HOME":           {},
+		"PATH":           {},
+		"XDG_SESSION_ID": {},
+		"LC_CTYPE":       {},
+	}
+
+	// check to see if there are any reserved key words in secrets to inject
+	filterEnvVars(env)
+
+	if len(env) != 2 {
+		t.Errorf("Expected 2 secrets to be returned, got %d", len(env))
+	}
+	if _, ok := env["test"]; !ok {
+		t.Errorf("Expected test to be returned")
+	}
+	if _, ok := env["test2"]; !ok {
+		t.Errorf("Expected test2 to be returned")
+	}
+	if _, ok := env["HOME"]; ok {
+		t.Errorf("Expected HOME to be filtered out")
+	}
+	if _, ok := env["PATH"]; ok {
+		t.Errorf("Expected PATH to be filtered out")
+	}
+	if _, ok := env["XDG_SESSION_ID"]; ok {
+		t.Errorf("Expected XDG_SESSION_ID to be filtered out")
+	}
+	if _, ok := env["LC_CTYPE"]; ok {
+		t.Errorf("Expected LC_CTYPE to be filtered out")
+	}
+
+}