parser_test.c

#include <stddef.h>
#include "../user/wsh/parse.h"
#include <assert.h>
#include <string.h>

void test_given_cmdline_when_4_pipes_should_return_4(){
    struct cmdLine cmd;
    int ret = parse("ls | grep | wc | cat", &cmd);
    assert(ret == 0);
    assert(cmd.numCommands == 4);
    assert(strcmp(cmd.argv[cmd.cmdStart[0]], "ls") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[1]], "grep") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[2]], "wc") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[3]], "cat") == 0);
}

void test_given_cmdline_when_args_4_pipes_should_return_4(){
    struct cmdLine cmd;
    int ret = parse("ls -lah bin | grep snake | wc | cat", &cmd);
    assert(ret == 0);
    assert(cmd.numCommands == 4);
    assert(strcmp(cmd.argv[cmd.cmdStart[0]], "ls") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[1]], "grep") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[2]], "wc") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[3]], "cat") == 0);
}

void test_given_cmdline_when_args_5_pipes_should_return_5(){
    struct cmdLine cmd;
    int ret = parse("ls -lah bin | grep snake | wc -l | cat | cat", &cmd);
    assert(ret == 0);
    assert(cmd.numCommands == 5);
    assert(strcmp(cmd.argv[cmd.cmdStart[0]], "ls") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[1]], "grep") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[2]], "wc") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[3]], "cat") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[4]], "cat") == 0);
}

void test_given_cmdline_when_line_break_should_return_3(){
    struct cmdLine cmd;
    int ret = parse("echo abc\\\\ndef\\\\nghn | tail -n 2 | grep def", &cmd);
    assert(ret == 0);
    assert(cmd.numCommands == 3);
    assert(strcmp(cmd.argv[cmd.cmdStart[0]], "echo") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[0] + 1], "abc\\\\ndef\\\\nghn") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[1]], "tail") == 0);
    assert(strcmp(cmd.argv[cmd.cmdStart[2]], "grep") == 0);
}