Test and fix override logic

1 files changed, 240 insertions, 0 deletions

diff --git a/tests/variable/override/test.sh b/tests/variable/override/test.sh
new file mode 100755
index 0000000..a195766
--- /dev/null
+++ b/tests/variable/override/test.sh
@@ -0,0 +1,240 @@
+#! /usr/bin/env bash
+
+verbose=n
+
+function error () { echo "$*" 1>&2; exit 1; }
+
+function fail ()
+{
+  if [ "$verbose" = "y" ]; then
+    b $*
+  else
+    b -q $* 2>/dev/null
+  fi
+
+  if [ $? -eq 0 ]; then
+    error "succeeded: b $*"
+  fi
+
+  return 0
+}
+
+function test ()
+{
+  # There is no way to get the exit code in process substitution
+  # so ruin the output.
+  #
+  diff -u - <(b -q $* || echo "<invalid output>")
+
+  if [ $? -ne 0 ]; then
+    error "failed: b $*"
+  fi
+}
+
+fail foo=bar[]             # error: unexpected [ in variable assignment 'foo=bar[]'
+fail foo=[string]bar       # error: typed override of variable foo
+fail "!foo=bar" "!foo=BAR" # error: multiple global overrides of variable foo
+fail "foo=bar" "foo=BAR"   # error: multiple project overrides of variable foo
+fail "%foo=bar" "%foo=BAR" # error: multiple project overrides of variable foo
+
+test --buildfile simple foo=bar ./ ./ <<< "bar"  # Multiple bootstraps of the same project.
+
+# Visibility.
+#
+test !v=X <<EOF
+/     : X
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test v=X <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test v=X p_a=assing <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test %v=X <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test %v=X p_a=as <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : x
+p/d   : x
+p/d/t : x
+EOF
+
+test %v+=S %v=+P a=as <<EOF
+/     :
+.     : P x S
+d     : P x S
+d/t   : P x S
+p     : P x S
+p/d   : P x S
+p/d/t : P x S
+EOF
+
+test %v+=S %v=+P a=as p_a=as <<EOF
+/     :
+.     : P x S
+d     : P x S
+d/t   : P x S
+p     : x
+p/d   : x
+p/d/t : x
+EOF
+
+# Append/Prepend in override.
+#
+test v+=S <<EOF
+/     :
+.     : S
+d     : S
+d/t   : S
+p     : S
+p/d   : S
+p/d/t : S
+EOF
+
+test v+=S a=as <<EOF
+/     :
+.     : x S
+d     : x S
+d/t   : x S
+p     : x S
+p/d   : x S
+p/d/t : x S
+EOF
+
+test %v=+P a=as p_a=as <<EOF
+/     :
+.     : P x
+d     : P x
+d/t   : P x
+p     : x
+p/d   : x
+p/d/t : x
+EOF
+
+test %v+=S v=+P a=as p_a=as <<EOF
+/     :
+.     : P x S
+d     : P x S
+d/t   : P x S
+p     : P x
+p/d   : P x
+p/d/t : P x
+EOF
+
+# Append/Prepend in both.
+#
+test v=X a=ap d_a=ap p_a=ap p_d_a=ap <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test v+=S v=+P a=as d_a=ap d_t_a=ap p_a=ap p_d_a=ap p_d_t_a=ap <<EOF
+/     :
+.     : P x S
+d     : P x s S
+d/t   : P x s s S
+p     : P x s S
+p/d   : P x s s S
+p/d/t : P x s s s S
+EOF
+
+# These ones are surprising. I guess the moral is we shouldn't do "blind"
+# cross-project append/prepend.
+#
+test %v=X a=as d_a=ap p_a=ap p_d_a=ap <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : x s
+p/d   : x s s
+p/d/t : x s s
+EOF
+
+test %v+=S a=as d_a=ap p_a=ap p_d_a=ap <<EOF
+/     :
+.     : x S
+d     : x s S
+d/t   : x s S
+p     : x s
+p/d   : x s s
+p/d/t : x s s
+EOF
+
+test %v+=S a=as d_a=ap p_a=ap p_d_a=ap ./ p/ <<EOF
+/     :
+.     : x S
+d     : x s S
+d/t   : x s S
+p     : x s S
+p/d   : x s s S
+p/d/t : x s s S
+EOF
+
+# Typed override.
+#
+test v+=S v=+P t=string <<EOF
+/     :
+.     : PS
+d     : PS
+d/t   : PS
+p     : PS
+p/d   : PS
+p/d/t : PS
+EOF
+
+test v+=S v=+P t=string a=as d_a=ap d_t_a=ap p_a=ap p_d_a=ap p_d_t_a=ap <<EOF
+/     :
+.     : PxS
+d     : PxsS
+d/t   : PxssS
+p     : PxsS
+p/d   : PxssS
+p/d/t : PxsssS
+EOF
+
+# Cache overwrite.
+#
+test --buildfile cache x+=01 y+=01 <<EOF
+001
+2
+0 01
+1
+EOF