Add basic test

Author: mdbrnowski

pyproject.toml

@@ -10,4 +10,9 @@ dependencies = [
 ]
 
 [tool.ruff]
-exclude = ["generated"]
+exclude = ["generated"]
+
+[dependency-groups]
+dev = [
+    "pytest>=8.3.3",
+]

test_main.py

@@ -0,0 +1,12 @@
+from typer.testing import CliRunner
+from main import app
+
+runner = CliRunner()
+
+
+def test_ast():
+    result = runner.invoke(app, ["ast", "tests/ast/input_1.txt"])
+    assert result.exit_code == 0
+    with open("tests/ast/output_1.txt", encoding="utf-8") as f:
+        output = f.read()
+    assert result.stdout == output

tests/ast/input_1.txt

@@ -0,0 +1,9 @@
+A = zeros(3);  # create 3x3 matrix filled with zeros
+B = ones(3);   # create 3x3 matrix filled with ones
+C = eye(4);   # create 4x4 diagonal matrix filled with ones
+
+M = [
+        [ 1, 2, 3],
+        [ 4, 5, 6],
+        [ 7, 8, 9]
+    ];

tests/ast/output_1.txt

@@ -0,0 +1,27 @@
+=
+|  A
+|  zeros
+|  |  3
+=
+|  B
+|  ones
+|  |  3
+=
+|  C
+|  eye
+|  |  4
+=
+|  M
+|  vector
+|  |  vector
+|  |  |  1
+|  |  |  2
+|  |  |  3
+|  |  vector
+|  |  |  4
+|  |  |  5
+|  |  |  6
+|  |  vector
+|  |  |  7
+|  |  |  8
+|  |  |  9