chore: import upstream snapshot with attribution

internal/skillscheck/skip_test.go

@@ -0,0 +1,68 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package skillscheck
+
+import (
+	"os"
+	"testing"
+)
+
+// clearSkillsSkipEnv unsets the env vars shouldSkip checks so the
+// host environment cannot pollute test results.
+func clearSkillsSkipEnv(t *testing.T) {
+	t.Helper()
+	for _, key := range []string{"LARKSUITE_CLI_NO_SKILLS_NOTIFIER", "CI", "BUILD_NUMBER", "RUN_ID"} {
+		t.Setenv(key, "")
+		os.Unsetenv(key)
+	}
+}
+
+func TestShouldSkip(t *testing.T) {
+	tests := []struct {
+		name    string
+		setup   func(t *testing.T)
+		version string
+		want    bool
+	}{
+		{"release_no_skip", clearSkillsSkipEnv, "1.0.21", false},
+		{"dev_uppercase", clearSkillsSkipEnv, "DEV", true},
+		{"dev_lowercase", clearSkillsSkipEnv, "dev", true},
+		{"empty_version", clearSkillsSkipEnv, "", true},
+		{"git_describe", clearSkillsSkipEnv, "1.0.0-12-g9b933f1-dirty", true},
+		{"opt_out", func(t *testing.T) {
+			clearSkillsSkipEnv(t)
+			t.Setenv("LARKSUITE_CLI_NO_SKILLS_NOTIFIER", "1")
+		}, "1.0.21", true},
+		{"ci_env", func(t *testing.T) {
+			clearSkillsSkipEnv(t)
+			t.Setenv("CI", "true")
+		}, "1.0.21", true},
+		{"build_number_env", func(t *testing.T) {
+			clearSkillsSkipEnv(t)
+			t.Setenv("BUILD_NUMBER", "42")
+		}, "1.0.21", true},
+		{"run_id_env", func(t *testing.T) {
+			clearSkillsSkipEnv(t)
+			t.Setenv("RUN_ID", "abc")
+		}, "1.0.21", true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			tt.setup(t)
+			if got := shouldSkip(tt.version); got != tt.want {
+				t.Errorf("shouldSkip(%q) = %v, want %v", tt.version, got, tt.want)
+			}
+		})
+	}
+}
+
+// Independent opt-out: LARKSUITE_CLI_NO_SKILLS_NOTIFIER must NOT be
+// affected by LARKSUITE_CLI_NO_UPDATE_NOTIFIER (different env vars).
+func TestShouldSkip_OptOutIsIndependent(t *testing.T) {
+	clearSkillsSkipEnv(t)
+	t.Setenv("LARKSUITE_CLI_NO_UPDATE_NOTIFIER", "1") // update opt-out, not us
+	if shouldSkip("1.0.21") {
+		t.Error("shouldSkip(release) = true with only LARKSUITE_CLI_NO_UPDATE_NOTIFIER set, want false")
+	}
+}