#!/bin/sh
# Build and test all included SubX programs:
#   translate them into ELF binaries
#   compare the generated binaries with what's already in git
#   run/test the ELF binaries in emulated mode (unless $NO_EMULATION)
#   run/test the ELF binaries in native mode (if on Linux)
#
# Example usage:
#   test_apps  # compare generated binaries, run them in emulated and native mode
#   test_apps record  # run binaries in emulated and native mode
#   NO_EMULATION=1 test_apps  # compare generated binaries, run them in native mode
#   NO_EMULATION=1 test_apps record  # run binaries just in native mode

set -e
cd `dirname $0`

test $NO_EMULATION  ||  EMULATED=1
test $EMULATED  &&  echo 'testing emulated runs'
test `uname` = 'Linux'  &&  NATIVE=1
test $NATIVE  &&  echo 'testing native runs'

./build

export OS=${OS:-linux}

echo "== translating and running using C++"

# example programs

echo ex1
./subx translate init.$OS examples/ex1.subx  -o examples/ex1
test "$1" = 'record'  ||  git diff --exit-code examples/ex1
test $EMULATED  &&  {
  ./subx run examples/ex1  ||  ret=$?
  test $ret -eq 42  # life, the universe and everything
}
test $NATIVE  &&  {
  examples/ex1  ||  ret=$?
  test $ret -eq 42  # life, the universe and everything
}

echo ex2
./subx translate init.$OS examples/ex2.subx  -o examples/ex2
test "$1" = 'record'  ||  git diff --exit-code examples/ex2
test $EMULATED  &&  {
  ./subx run examples/ex2  ||  ret=$?
  test $ret -eq 2  # 1 + 1
}
test $NATIVE  &&  {
  examples/ex2  ||  ret=$?
  test $ret -eq 2  # 1 + 1
}

echo ex3
./subx translate init.$OS examples/ex3.subx  -o examples/ex3
test "$1" = 'record'  ||  git diff --exit-code examples/ex3
test $EMULATED  &&  {
  ./subx run examples/ex3  ||  ret=$?
  test $ret -eq 55  # 1 + 2 + ... + 10
}
test $NATIVE  &&  {
  examples/ex3  ||  ret=$?
  test $ret -eq 55  # 1 + 2 + ... + 10
}

echo ex4
./subx translate init.$OS examples/ex4.subx  -o examples/ex4
test "$1" = 'record'  ||  git diff --exit-code examples/ex4
test $EMULATED  &&  {
  echo a | ./subx run examples/ex4 >ex4.out  ||  true
  test `cat ex4.out` = 'a'
}
test $NATIVE  &&  {
  echo a | examples/ex4 >ex4.out  ||  true
  test `cat ex4.out` = 'a'
}

echo ex5
./subx translate init.$OS examples/ex5.subx  -o examples/ex5
test "$1" = 'record'  ||  git diff --exit-code examples/ex5
test $EMULATED  &&  {
  echo a | ./subx run examples/ex5 >ex5.out  ||  true
  test `cat ex5.out` = 'a'
}
test $NATIVE  &&  {
  echo a | examples/ex5 >ex5.out  ||  true
  test `cat ex5.out` = 'a'
}

echo ex6
./subx translate init.$OS examples/ex6.subx  -o examples/ex6
test "$1" = 'record'  ||  git diff --exit-code examples/ex6
test $EMULATED  &&  {
  ./subx run examples/ex6 >ex6.out  ||  true
  test "`cat ex6.out`" = 'Hello, world!'
}
test $NATIVE  &&  {
  examples/ex6 >ex6.out  ||  true
  test "`cat ex6.out`" = 'Hello, world!'
}

echo ex7
./subx translate init.$OS examples/ex7.subx  -o examples/ex7
test "$1" = 'record'  ||  git diff --exit-code examples/ex7
test $EMULATED  &&  {
  ./subx run examples/ex7  ||  ret=$?
  test $ret -eq 97  # 'a'
}
test $NATIVE  &&  {
  examples/ex7  ||  ret=$?
  test $ret -eq 97  # 'a'
}

echo ex8
./subx translate init.$OS examples/ex8.subx  -o examples/ex8
test "$1" = 'record'  || git diff --exit-code examples/ex8
test $EMULATED  &&  {
  ./subx run examples/ex8 abcd  ||  ret=$?
  test $ret -eq 4  # length('abcd')
}
test $NATIVE  &&  {
  examples/ex8 abcd  ||  ret=$?
  test $ret -eq 4  # length('abcd')
}

echo ex9
./subx translate init.$OS examples/ex9.subx  -o examples/ex9
test "$1" = 'record'  || git diff --exit-code examples/ex9
test $EMULATED  &&  {
  ./subx run examples/ex9 z x  ||  ret=$?
  test $ret -eq 2  # 'z' - 'x'
}
test $NATIVE  &&  {
  examples/ex9 z x  ||  ret=$?
  test $ret -eq 2  # 'z' - 'x'
}

echo ex10
./subx translate init.$OS examples/ex10.subx  -o examples/ex10
test "$1" = 'record'  || git diff --exit-code examples/ex10
test $EMULATED  &&  {
  ./subx run examples/ex10 abc abc  ||  ret=$?
  test $ret -eq 1  # equal
  ./subx run examples/ex10 abc abcd  # 0; not equal
}
test $NATIVE  &&  {
  examples/ex10 abc abc  ||  ret=$?
  test $ret -eq 1  # equal
  examples/ex10 abc abcd  # 0; not equal
}

echo ex11
./subx translate init.$OS examples/ex11.subx  -o examples/ex11
test "$1" = 'record'  || git diff --exit-code examples/ex11
test $EMULATED  &&  {
  ./subx run examples/ex11
  echo
}
test $NATIVE  &&  {
  examples/ex11
  echo
}

echo ex12
./subx translate init.$OS examples/ex12.subx  -o examples/ex12
test "$1" = 'record'  || git diff --exit-code examples/ex12
test $EMULATED  &&  ./subx run examples/ex12  # final byte of mmap'd address is well-nigh guaranteed to be 0
test $NATIVE  &&  examples/ex12

# Larger apps that use the standard library.

echo factorial
./subx translate init.$OS 0*.subx apps/factorial.subx  -o apps/factorial
test "$1" = 'record'  ||  git diff --exit-code apps/factorial
test $EMULATED  &&  {
  ./subx run apps/factorial  ||  ret=$?
  test $ret -eq 120  # factorial(5)
  ./subx run apps/factorial test
  echo
}
test $NATIVE  &&  {
  apps/factorial  ||  ret=$?
  test $ret -eq 120  # factorial(5)
  apps/factorial test
  echo
}

echo crenshaw2-1
./subx translate init.$OS 0*.subx apps/crenshaw2-1.subx  -o apps/crenshaw2-1
test "$1" = 'record'  ||  git diff --exit-code apps/crenshaw2-1
test $EMULATED  &&  {
  ./subx run apps/crenshaw2-1 test
  echo
}
test $NATIVE  &&  {
  apps/crenshaw2-1 test
  echo
}

echo crenshaw2-1b
./subx translate init.$OS 0*.subx apps/crenshaw2-1b.subx  -o apps/crenshaw2-1b
test "$1" = 'record'  ||  git diff --exit-code apps/crenshaw2-1b
test $EMULATED  &&  {
  ./subx run apps/crenshaw2-1b test
  echo
}
test $NATIVE  &&  {
  apps/crenshaw2-1b test
  echo
}

echo handle
./subx translate init.$OS 0*.subx apps/handle.subx  -o apps/handle
test "$1" = 'record'  ||  git diff --exit-code apps/handle
test $EMULATED  &&  {
  ./subx run apps/handle > handle.out 2>&1  ||  true
  grep -q 'lookup succeeded' handle.out  ||  { echo "missing success test"; exit 1; }
  grep -q 'lookup failed' handle.out  ||  { echo "missing failure test"; exit 1; }
}
test $NATIVE  &&  {
  apps/handle > handle.out 2>&1  ||  true
  grep -q 'lookup succeeded' handle.out  ||  { echo "missing success test"; exit 1; }
  grep -q 'lookup failed' handle.out  ||  { echo "missing failure test"; exit 1; }
}

# Phases of the self-hosted SubX translator.

for phase in hex survey pack assort dquotes tests
do
  echo $phase
  ./subx translate init.$OS 0*.subx apps/subx-params.subx apps/$phase.subx -o apps/$phase
  test "$1" = 'record'  ||  git diff --exit-code apps/hex
  test $EMULATED  &&  {
    ./subx run apps/$phase test
    echo
  }
  test $NATIVE  &&  {
    apps/$phase test
    echo
  }
done

# Higher-level syntax.

# Certain phases of translation run native beyond this point. We're starting
# to go beyond functionality of the C++ bootstrap.

echo sigils
./subx translate init.$OS 0*.subx apps/subx-params.subx apps/sigils.subx  -o apps/sigils
[ "$1" != record ]  &&  git diff --exit-code apps/sigils
test $EMULATED  &&  {
  ./subx run apps/sigils test
  echo
}
test `uname` = 'Linux'  &&  {
  apps/sigils test
  echo
}

echo calls
cat init.$OS 0*.subx apps/subx-params.subx apps/calls.subx  |  apps/sigils  > a.sigils
./subx translate a.sigils -o apps/calls
[ "$1" != record ]  &&  git diff --exit-code apps/calls
test $EMULATED  &&  {
  ./subx run apps/calls test
  echo
}
test `uname` = 'Linux'  &&  {
  apps/calls test
  echo
}

echo braces
cat init.$OS 0*.subx apps/subx-params.subx apps/braces.subx  |  apps/calls  |  apps/sigils  > a.sigils
./subx translate a.sigils -o apps/braces
[ "$1" != record ]  &&  git diff --exit-code apps/braces
test $EMULATED  &&  {
  ./subx run apps/braces test
  echo
}
test `uname` = 'Linux'  &&  {
  apps/braces test
  echo
}

echo mu
cat init.$OS 0*.subx apps/mu.subx  |  apps/braces  |  apps/calls  |  apps/sigils  > a.sigils
./subx translate a.sigils -o apps/mu
[ "$1" != record ]  &&  git diff --exit-code apps/mu
test $EMULATED  &&  {
  ./subx run apps/mu test
  echo
}
test `uname` = 'Linux'  &&  {
  apps/mu test
  echo
}

test $NATIVE  ||  exit 0
echo "== translating using SubX (native only)"

# example programs

for n in `seq 1 12`
do
  echo ex$n
  ./translate_subx init.$OS examples/ex$n.subx
  diff examples/ex$n a.elf
done

# Larger apps that use the standard library.

for app in factorial crenshaw2-1 crenshaw2-1b handle
do
  echo $app
  ./translate_subx init.$OS 0*.subx apps/$app.subx
  diff apps/$app a.elf
done

# Phases of the self-hosted SubX translator.

for app in hex survey pack assort dquotes tests sigils calls braces
do
  echo $app
  ./translate_subx init.$OS 0*.subx apps/subx-params.subx apps/$app.subx
  diff apps/$app a.elf
done

# Mu translator
echo mu
./translate_subx init.$OS 0*.subx apps/mu.subx
diff apps/mu a.elf

exit 0