Add e2e cairo-migrate tests (#809)

Closes #772

Co-authored-by: Marek Kaput <[email protected]>

tests/e2e/test_cairo_010_migrate.py

@@ -0,0 +1,36 @@
+from distutils.file_util import copy_file
+from pathlib import Path
+from subprocess import CalledProcessError
+
+import pytest
+
+
+@pytest.mark.usefixtures("init")
+def test_migrating_file_to_010(
+        protostar, datadir: Path
+):
+    copy_file(
+        src=str(datadir / "pre_010_file.cairo09"),
+        dst="./src/main.cairo",
+    )
+
+    protostar(
+        ["cairo-migrate", "src"]
+    )
+
+    assert Path("src/main.cairo").read_text() == (datadir / "post_010_file.cairo").read_text()
+
+
+@pytest.mark.usefixtures("init")
+def test_failing_migrate_to_010(
+        protostar, datadir: Path
+):
+    copy_file(
+        src=str(datadir / "pre_010_file_unsupported_migrator_syntax.cairo09"),
+        dst="./src/main.cairo",
+    )
+
+    output = protostar(["cairo-migrate", "src"], expect_exit_code=1)
+
+    assert "Migrate exception" in output
+    assert "Comments inside expressions are not supported" in output

tests/e2e/test_cairo_010_migrate/post_010_file.cairo

@@ -0,0 +1,20 @@
+%lang starknet
+
+from starkware.cairo.common.cairo_builtins import HashBuiltin
+
+@storage_var
+func storage_felt() -> (res: felt) {
+}
+
+@external
+func set_var{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}(val: felt) {
+    storage_felt.write(val);
+
+    return ();
+}
+
+@view
+func view_val{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}() -> (res: felt) {
+    let (val_now) = storage_felt.read();
+    return (res=val_now);
+}

tests/e2e/test_cairo_010_migrate/pre_010_file.cairo09

@@ -0,0 +1,29 @@
+%lang starknet
+
+from starkware.cairo.common.cairo_builtins import HashBuiltin
+
+@storage_var
+func storage_felt() -> (res: felt):
+end
+
+@external
+func set_var{
+        syscall_ptr: felt*,
+        pedersen_ptr: HashBuiltin*,
+        range_check_ptr
+    }(val: felt):
+    storage_felt.write(val)
+
+    return ()
+end
+
+
+@view
+func view_val{
+        syscall_ptr: felt*,
+        pedersen_ptr: HashBuiltin*,
+        range_check_ptr
+    }() -> (res: felt):
+    let (val_now) = storage_felt.read()
+    return (res=val_now)
+end

tests/e2e/test_cairo_010_migrate/pre_010_file_unsupported_migrator_syntax.cairo09

@@ -0,0 +1,16 @@
+%lang starknet
+
+from starkware.cairo.common.cairo_builtins import HashBuiltin
+
+@external
+func set_var{
+        syscall_ptr: felt*,
+        pedersen_ptr: HashBuiltin*,
+        range_check_ptr
+    }(val: felt):
+    storage_felt.write(
+        val # This is a comment which will crash auto-formatter
+    )
+
+    return ()
+end