From 55b16bf711c7d1d1e7405320a0ead7d664c1278e Mon Sep 17 00:00:00 2001
From: Namami Shanker <namami2011@gmail.com>
Date: Tue, 21 Jun 2022 17:20:47 +0530
Subject: [PATCH 1/2] TST: Add f2py2e f2cmap flag test

---
 numpy/f2py/tests/test_f2py2e.py | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/numpy/f2py/tests/test_f2py2e.py b/numpy/f2py/tests/test_f2py2e.py
index 9de043d73a71..ef8e4668851b 100644
--- a/numpy/f2py/tests/test_f2py2e.py
+++ b/numpy/f2py/tests/test_f2py2e.py
@@ -79,6 +79,17 @@ def retreal_f77(tmpdir_factory):
     fn.write_text(fdat, encoding="ascii")
     return fn
 
+@pytest.fixture(scope="session")
+def f2cmap_f90(tmpdir_factory):
+    """Generates a single f90 file for testing"""
+    fdat = util.getpath("tests", "src", "f2cmap", "isoFortranEnvMap.f90").read_text()
+    f2cmap = util.getpath("tests", "src", "f2cmap", ".f2py_f2cmap").read_text()
+    fn = tmpdir_factory.getbasetemp() / "f2cmap.f90"
+    fmap = tmpdir_factory.getbasetemp() / "mapfile"
+    fn.write_text(fdat, encoding="ascii")
+    fmap.write_text(f2cmap, encoding="ascii")
+    return fn
+
 
 def test_gen_pyf(capfd, hello_world_f90, monkeypatch):
     """Ensures that a signature file is generated via the CLI
@@ -533,13 +544,22 @@ def test_hlink():
     pass
 
 
-def test_f2cmap():
+def test_f2cmap(capfd, f2cmap_f90, monkeypatch):
     """Check that Fortran-to-Python KIND specs can be passed
 
     CLI :: --f2cmap
     """
-    # TODO: populate
-    pass
+    ipath = Path(f2cmap_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} --f2cmap mapfile'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Reading f2cmap from 'mapfile' ..." in out
+        assert "Mapping \"real(kind=real32)\" to \"float\"" in out
+        assert "Mapping \"real(kind=real64)\" to \"double\"" in out
+        assert "Mapping \"integer(kind=int64)\" to \"long_long\"" in out
+        assert "Successfully applied user defined f2cmap changes" in out
 
 
 def test_quiet(capfd, hello_world_f90, monkeypatch):

From 02533c5da4b5e4328d49dcafb8d0a5592ae337c7 Mon Sep 17 00:00:00 2001
From: Namami Shanker <namami2011@gmail.com>
Date: Tue, 21 Jun 2022 17:38:24 +0530
Subject: [PATCH 2/2] TST: Tighten test_gen_pyf_stdout check

---
 numpy/f2py/tests/test_f2py2e.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/numpy/f2py/tests/test_f2py2e.py b/numpy/f2py/tests/test_f2py2e.py
index ef8e4668851b..2c10f046f1d9 100644
--- a/numpy/f2py/tests/test_f2py2e.py
+++ b/numpy/f2py/tests/test_f2py2e.py
@@ -116,6 +116,7 @@ def test_gen_pyf_stdout(capfd, hello_world_f90, monkeypatch):
         f2pycli()
         out, _ = capfd.readouterr()
         assert "Saving signatures to file" in out
+        assert "function hi() ! in " in out
 
 
 def test_gen_pyf_no_overwrite(capfd, hello_world_f90, monkeypatch):