#include <bits/stdc++.h>
using namespace std;
template <typename T>
inline void Read(T& x) {
  bool Neg = false;
  char c;
  for (c = getchar(); c<'0' | c> '9'; c = getchar())
    if (c == '-') Neg = !Neg;
  x = c - '0';
  for (c = getchar(); c >= '0' && c <= '9'; c = getchar()) x = x * 10 + c - '0';
  if (Neg) x = -x;
}
template <typename T>
inline void Write(T x) {
  if (x < 0) {
    putchar('-');
    x = -x;
  }
  T p = 1;
  for (T temp = x / 10; temp > 0; temp /= 10) p *= 10;
  for (; p > 0; x %= p, p /= 10) putchar(x / p + '0');
}
template <typename A, typename B>
string to_string(pair<A, B> p);
template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p);
template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p);
string to_string(const string& s) { return '"' + s + '"'; }
string to_string(const char* s) { return to_string((string)s); }
string to_string(bool b) { return (b ? "true" : "false"); }
string to_string(vector<bool> v) {
  bool first = true;
  string res = "{";
  for (int i = 0; i < static_cast<int>(v.size()); i++) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(v[i]);
  }
  res += "}";
  return res;
}
template <size_t N>
string to_string(bitset<N> v) {
  string res = "";
  for (size_t i = 0; i < N; i++) {
    res += static_cast<char>('0' + v[i]);
  }
  return res;
}
template <typename A>
string to_string(A v) {
  bool first = true;
  string res = "{";
  for (const auto& x : v) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(x);
  }
  res += "}";
  return res;
}
template <typename A, typename B>
string to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}
template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " +
         to_string(get<2>(p)) + ")";
}
template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " +
         to_string(get<2>(p)) + ", " + to_string(get<3>(p)) + ")";
}
void debug_out() { cout << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
  cout << " " << to_string(H);
  debug_out(T...);
}
const int mxn = 1e5 + 5;
int n, a[mxn], pos[mxn];
bool ok[mxn];
void solve() {
  cin >> n;
  for (int i = 1; i <= n; ++i) {
    cin >> a[i];
    pos[a[i]] = i;
    ok[i] = false;
  }
  int cnt = 0, vt;
  bool nult = true;
  bool check = true;
  ok[n + 1] = true;
  while (cnt < n) {
    if (nult) {
      cnt++;
      vt = pos[cnt];
      if (!ok[vt + 1]) {
        nult = false;
      } else {
        nult = true;
      }
      ok[vt] = true;
    } else {
      if (a[vt + 1] != cnt + 1) {
        check = false;
        cnt = n + 1;
      } else {
        cnt++;
        vt = pos[cnt];
        if (!ok[vt + 1]) {
          nult = false;
        } else {
          nult = true;
        }
        ok[vt] = true;
      }
    }
  }
  if (check) {
    cout << "Yes\n";
  } else {
    cout << "No\n";
  }
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int t;
  cin >> t;
  while (t--) {
    solve();
  }
}
