refactor(v2): init eventstore package (#7806)

* refactor(v2): init database package

* refactor(v2): init eventstore package

* add mock package

* test query constructors

* option based push analog to query

internal/v2/eventstore/postgres/intent_test.go

@@ -0,0 +1,122 @@
+package postgres
+
+import (
+	"testing"
+
+	"github.com/zitadel/zitadel/internal/v2/eventstore"
+)
+
+func Test_checkSequences(t *testing.T) {
+	type args struct {
+		intents []*intent
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{
+			name: "ignore",
+			args: args{
+				intents: []*intent{
+					{
+						sequence: 1,
+						PushAggregate: eventstore.NewPushAggregate(
+							"", "", "",
+							eventstore.IgnoreCurrentSequence(),
+						),
+					},
+				},
+			},
+			want: true,
+		},
+		{
+			name: "ignores",
+			args: args{
+				intents: []*intent{
+					{
+						sequence: 1,
+						PushAggregate: eventstore.NewPushAggregate(
+							"", "", "",
+							eventstore.IgnoreCurrentSequence(),
+						),
+					},
+					{
+						sequence: 1,
+						PushAggregate: eventstore.NewPushAggregate(
+							"", "", "",
+						),
+					},
+				},
+			},
+			want: true,
+		},
+		{
+			name: "matches",
+			args: args{
+				intents: []*intent{
+					{
+						sequence: 0,
+						PushAggregate: eventstore.NewPushAggregate(
+							"", "", "",
+							eventstore.CurrentSequenceMatches(0),
+						),
+					},
+				},
+			},
+			want: true,
+		},
+		{
+			name: "does not match",
+			args: args{
+				intents: []*intent{
+					{
+						sequence: 1,
+						PushAggregate: eventstore.NewPushAggregate(
+							"", "", "",
+							eventstore.CurrentSequenceMatches(2),
+						),
+					},
+				},
+			},
+			want: false,
+		},
+		{
+			name: "at least",
+			args: args{
+				intents: []*intent{
+					{
+						sequence: 10,
+						PushAggregate: eventstore.NewPushAggregate(
+							"", "", "",
+							eventstore.CurrentSequenceAtLeast(0),
+						),
+					},
+				},
+			},
+			want: true,
+		},
+		{
+			name: "at least too low",
+			args: args{
+				intents: []*intent{
+					{
+						sequence: 1,
+						PushAggregate: eventstore.NewPushAggregate(
+							"", "", "",
+							eventstore.CurrentSequenceAtLeast(2),
+						),
+					},
+				},
+			},
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := checkSequences(tt.args.intents); got != tt.want {
+				t.Errorf("checkSequences() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}