begin implementing separate metadata parsing

internal/builder/build_page_test.go

@@ -0,0 +1,37 @@
+package builder
+
+import "testing"
+
+func Test_processWithYaml(t *testing.T) {
+	tests := []struct {
+		name string // description of this test case
+		// Named input parameters for target function.
+		f       []byte
+		want    Metadata
+		want2   []byte
+		wantErr bool
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, got2, gotErr := processWithYaml(tt.f)
+			if gotErr != nil {
+				if !tt.wantErr {
+					t.Errorf("processWithYaml() failed: %v", gotErr)
+				}
+				return
+			}
+			if tt.wantErr {
+				t.Fatal("processWithYaml() succeeded unexpectedly")
+			}
+			// TODO: update the condition below to compare got with tt.want.
+			if true {
+				t.Errorf("processWithYaml() = %v, want %v", got, tt.want)
+			}
+			if true {
+				t.Errorf("processWithYaml() = %v, want %v", got2, tt.want2)
+			}
+		})
+	}
+}