[fromGroovyString(), "Runtime.getRuntime().exec(command, new String[] {'FOOBAR=foobar'}, file('$pwd'))", pwd, "foobar"],
            [fromStringArray(), "Runtime.getRuntime().exec(command, new String[] {'FOOBAR=foobar'}, file('$pwd'))", pwd, "foobar"],
            // Null argument handling

            // varInitializer | processCreator | expectedPwdSuffix | expectedEnvVar
            [fromString(), "execute(command)", "", ""],
            [fromGroovyString(), "execute(command)", "", ""],
            [fromStringArray(), "execute(command)", "", ""],
            [fromStringList(), "execute(command)", "", ""],
            [fromObjectList(), "execute(command)", "", ""],
            // Spread calls

            [fromGroovyString(), "Runtime.getRuntime().exec(command, new String[] {'FOOBAR=foobar'})", "", "foobar"],
            [fromStringArray(), "Runtime.getRuntime().exec(command, new String[] {'FOOBAR=foobar'})", "", "foobar"],
            // Null argument handling
            [fromString(), "Runtime.getRuntime().exec(command, null)", "", ""],

                        def command = "\${rawCommand.toString()}"
                    """
            }
        }
    }

    static VarInitializer fromStringArray() {
        return new VarInitializer("String[]") {
            @Override
            String getGroovy(List<String> cmd) {
                return """String[] command = [${ShellScript.cmdToVarargLiterals(cmd)}]"""