This patch adds in test data which is included in the upstream git repository
but not in the crates.io release. It is based on the v6.0.2 tag in
the upstream git repository.

src/tests/lib/libteststatic.a is an empty file upstream, but this does not
play well with patches, so I added some dummy content.

--- /dev/null
+++ b/src/tests/toml-fallback-names/Cargo.toml
@@ -0,0 +1,4 @@
+[package.metadata.system-deps.test_lib]
+version = "1.0"
+name = "nosuchlib"
+fallback-names = ["also-no-such-lib", "testlib", "should-not-get-here"]
--- /dev/null
+++ b/src/tests/toml-feature-not-string/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps]
+testlib = { version = "1", feature = 2 }
--- /dev/null
+++ b/src/tests/toml-feature-versions/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps]
+testdata = { version = "4", v5 = { version = "5" }, v6 = { version = "6" }}
--- /dev/null
+++ b/src/tests/toml-good/Cargo.toml
@@ -0,0 +1,4 @@
+[package.metadata.system-deps]
+testdata = "4"
+testlib = { version = "1", feature = "test-feature" }
+testmore = { version = "2", feature = "another-test-feature" }
--- /dev/null
+++ b/src/tests/toml-invalid-cfg/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps.'cfg(badger)']
+testanotherlib = { version = "1", optional = true }
\ No newline at end of file
--- /dev/null
+++ b/src/tests/toml-missing-key/Cargo.toml
@@ -0,0 +1 @@
+no-pkg-config-here = true
--- /dev/null
+++ b/src/tests/toml-not-table/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata]
+system-deps = "not a table"
--- /dev/null
+++ b/src/tests/toml-optional/Cargo.toml
@@ -0,0 +1,4 @@
+[package.metadata.system-deps]
+testlib = { version = "1.0", optional = true, v5 = { version = "5.0", name = "testlib-5.0", optional = false }}
+testmore = { version = "2", v3 = { version = "3.0", optional = true }}
+testbadger = { version = "1", optional = true }
\ No newline at end of file
--- /dev/null
+++ b/src/tests/toml-os-specific/Cargo.toml
@@ -0,0 +1,6 @@
+[package.metadata.system-deps.'cfg(target_os = "linux")']
+testdata = "1"
+[package.metadata.system-deps.'cfg(not(target_os = "macos"))']
+testlib = "1"
+[package.metadata.system-deps.'cfg(unix)']
+testanotherlib = { version = "1", optional = true }
\ No newline at end of file
--- /dev/null
+++ b/src/tests/toml-override-name/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps]
+test_lib = { name = "testlib", version = "1.0", v1_2 = { version = "1.2" } }
--- /dev/null
+++ b/src/tests/toml-static/Cargo.toml
@@ -0,0 +1,4 @@
+[package.metadata.system-deps]
+testdata = "4"
+teststaticlib = { version = "1", feature = "test-feature" }
+testmore = { version = "2", feature = "another-test-feature" }
--- /dev/null
+++ b/src/tests/toml-two-libs/Cargo.toml
@@ -0,0 +1,3 @@
+[package.metadata.system-deps]
+testlib = { version = "1" }
+testanotherlib = { version = "1" }
--- /dev/null
+++ b/src/tests/toml-unexpected-key/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps]
+testlib = { version = "1", color = "blue" }
--- /dev/null
+++ b/src/tests/toml-version-fallback-names/Cargo.toml
@@ -0,0 +1,7 @@
+[package.metadata.system-deps.test_lib]
+version = "0.1"
+name = "nosuchlib"
+fallback-names = ["also-no-such-lib", "testlib", "should-not-get-here"]
+v1 = { version = "1.0" }
+v2 = { version = "2.0", fallback-names = ["testlib-2.0"] }
+v99 = { version = "99.0", fallback-names = [] }
--- /dev/null
+++ b/src/tests/toml-version-in-table-not-string/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps]
+testlib = { version = 1 }
--- /dev/null
+++ b/src/tests/toml-version-missing/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps]
+testlib = { feature = "test-feature" }
--- /dev/null
+++ b/src/tests/toml-version-names/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps]
+testlib = { version = "1.2", v2 = { version = "2.0", name = "testlib-2.0" }, v3 = { version = "3.0", name = "testlib-3.0" }}
\ No newline at end of file
--- /dev/null
+++ b/src/tests/toml-version-not-string/Cargo.toml
@@ -0,0 +1,2 @@
+[package.metadata.system-deps]
+testlib = 1
--- /dev/null
+++ b/src/tests/toml-version-range-unsatisfied/Cargo.toml
@@ -0,0 +1,3 @@
+[package.metadata.system-deps]
+testdata = "4"
+testlib = { version = ">= 1, < 1.2", feature = "test-feature" }
--- /dev/null
+++ b/src/tests/toml-version-range/Cargo.toml
@@ -0,0 +1,3 @@
+[package.metadata.system-deps]
+testdata = "4"
+testlib = { version = ">= 1, < 2", feature = "test-feature" }
--- /dev/null
+++ b/src/tests/lib/libteststatic.a
@@ -0,0 +1 @@
+foo