internal/cpe: add binding and tests

1 files changed, 132 insertions, 0 deletions

diff --git a/internal/cpe/binding_test.go b/internal/cpe/binding_test.go
new file mode 100644
index 0000000..7c5154a
--- /dev/null
+++ b/internal/cpe/binding_test.go
@@ -0,0 +1,132 @@
+package cpe
+
+import (
+  "encoding/json"
+  "testing"
+)
+
+func TestNewBinding(t *testing.T) {
+  passTests := []string {
+    "cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
+  }
+
+  for _, val := range(passTests) {
+    t.Run(val, func(t *testing.T) {
+      if _, err := NewBinding(val); err != nil {
+        t.Error(err)
+      }
+    })
+  }
+
+  failTests := []struct {
+    val string
+    exp string
+  } {{
+    val: "o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
+    exp: "missing CPE 2.3 prefix",
+  }, {
+    val: "cpe:2.3:\n",
+    exp: "invalid byte: 0x0a",
+  }, {
+    val: "cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*",
+    exp: "invalid attribute count: 10 != 11",
+  }, {
+    val: "cpe:2.3:foo:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
+    exp: "unknown part: \"foo\"",
+  }}
+
+  for _, test := range(failTests) {
+    t.Run(test.val, func(t *testing.T) {
+      got, err := NewBinding(test.val)
+      if err == nil {
+        t.Errorf("got %v, exp error", got)
+      } else if err.Error() != test.exp {
+        t.Errorf("got \"%s\", exp \"%s\"", err.Error(), test.exp)
+      }
+    })
+  }
+}
+
+func TestBindingString(t *testing.T) {
+  tests := []string {
+    "cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
+  }
+
+  for _, val := range(tests) {
+    t.Run(val, func(t *testing.T) {
+      if got, err := NewBinding(val); err != nil {
+        t.Error(err)
+      } else if got.String() != val {
+        t.Errorf("got \"%s\", exp \"%s\"", got.String(), val)
+      }
+    })
+  }
+}
+
+func TestBindingUnmarshalJSON(t *testing.T) {
+  passTests := []string {
+    `"cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*"`,
+  }
+
+  for _, val := range(passTests) {
+    t.Run(val, func(t *testing.T) {
+      var b Binding
+      if err := json.Unmarshal([]byte(val), &b); err != nil {
+        t.Error(err)
+      }
+    })
+  }
+
+  failTests := []struct {
+    val string
+    exp string
+  } {{
+    val: `"o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*`,
+    exp: "unexpected end of JSON input",
+  }, {
+    val: `"o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*"`,
+    exp: "missing CPE 2.3 prefix",
+  }}
+
+  for _, test := range(failTests) {
+    t.Run(test.val, func(t *testing.T) {
+      var got Binding
+      if err := json.Unmarshal([]byte(test.val), &got); err == nil {
+        t.Errorf("got %v, exp error", got)
+      } else if err.Error() != test.exp {
+        t.Errorf("got \"%s\", exp \"%s\"", err.Error(), test.exp)
+      }
+    })
+  }
+}
+
+func TestBindingMarshalJSON(t *testing.T) {
+  tests := []string {
+    "cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
+  }
+
+  for _, val := range(tests) {
+    t.Run(val, func(t *testing.T) {
+      // create binding, check for error
+      b, err := NewBinding(val)
+      if err != nil {
+        t.Error(err)
+        return
+      }
+
+      // marshal json, check for error
+      got, err := json.Marshal(b)
+      if err != nil {
+        t.Error(err)
+        return
+      }
+
+      // build/check expected value
+      exp := "\"" + val + "\""
+      if string(got) != exp {
+        t.Errorf("got \"%s\", exp \"%s\"", string(got), exp)
+        return
+      }
+    })
+  }
+}