From 59e6e2a3c1973c5efe09035c925c884b226192b3 Mon Sep 17 00:00:00 2001
From: Tristan van Berkom <tristan.vanberkom@codethink.co.uk>
Date: Mon, 20 Jul 2020 16:57:49 +0900
Subject: tests/format/variables.py: Adding new test for lazy variable
 resolution

Check that lazy variable resolution allows using variables
in junction definitions which would not successfully resolve if
we needed to resolve synchronously.
---
 tests/format/variables.py                                | 10 ++++++++++
 tests/format/variables/partial_context/base.bst          |  4 ++++
 tests/format/variables/partial_context/base/project.conf |  3 +++
 tests/format/variables/partial_context/base/vars.yml     |  2 ++
 tests/format/variables/partial_context/project.conf      |  8 ++++++++
 tests/format/variables/partial_context/test.bst          |  3 +++
 6 files changed, 30 insertions(+)
 create mode 100644 tests/format/variables/partial_context/base.bst
 create mode 100644 tests/format/variables/partial_context/base/project.conf
 create mode 100644 tests/format/variables/partial_context/base/vars.yml
 create mode 100644 tests/format/variables/partial_context/project.conf
 create mode 100644 tests/format/variables/partial_context/test.bst

diff --git a/tests/format/variables.py b/tests/format/variables.py
index d4b8b787b..2f436fc75 100644
--- a/tests/format/variables.py
+++ b/tests/format/variables.py
@@ -233,3 +233,13 @@ def test_variables_resolving_errors_in_public_section(cli, datafiles):
 
     result = cli.run(project=project, args=["show", "--format", "%{public}", "public_unresolved.bst"])
     result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.UNRESOLVED_VARIABLE)
+
+
+@pytest.mark.datafiles(os.path.join(DATA_DIR, "partial_context"))
+def test_partial_context_junctions(cli, datafiles):
+    project = str(datafiles)
+
+    result = cli.run(project=project, args=["show", "--format", "%{vars}", "test.bst"])
+    result.assert_success()
+    result_vars = _yaml.load_data(result.output)
+    assert result_vars.get_str("eltvar") == "/bar/foo/baz"
diff --git a/tests/format/variables/partial_context/base.bst b/tests/format/variables/partial_context/base.bst
new file mode 100644
index 000000000..10ce559a9
--- /dev/null
+++ b/tests/format/variables/partial_context/base.bst
@@ -0,0 +1,4 @@
+kind: junction
+sources:
+- kind: local
+  path: base
diff --git a/tests/format/variables/partial_context/base/project.conf b/tests/format/variables/partial_context/base/project.conf
new file mode 100644
index 000000000..91511bfe9
--- /dev/null
+++ b/tests/format/variables/partial_context/base/project.conf
@@ -0,0 +1,3 @@
+name: base
+min-version: 2.0
+
diff --git a/tests/format/variables/partial_context/base/vars.yml b/tests/format/variables/partial_context/base/vars.yml
new file mode 100644
index 000000000..3a91e1310
--- /dev/null
+++ b/tests/format/variables/partial_context/base/vars.yml
@@ -0,0 +1,2 @@
+variables:
+  subvar: "/bar"
diff --git a/tests/format/variables/partial_context/project.conf b/tests/format/variables/partial_context/project.conf
new file mode 100644
index 000000000..e8a8ed038
--- /dev/null
+++ b/tests/format/variables/partial_context/project.conf
@@ -0,0 +1,8 @@
+name: test
+min-version: 2.0
+
+(@): base.bst:vars.yml
+
+variables:
+  var: "%{subvar}/foo"
+
diff --git a/tests/format/variables/partial_context/test.bst b/tests/format/variables/partial_context/test.bst
new file mode 100644
index 000000000..8276763c3
--- /dev/null
+++ b/tests/format/variables/partial_context/test.bst
@@ -0,0 +1,3 @@
+kind: manual
+variables:
+  eltvar: "%{var}/baz"
-- 
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