From 343760228ed1c6fa176aa2a436e373186572e2eb Mon Sep 17 00:00:00 2001
From: Frank Elsinga <frank@elsinga.de>
Date: Thu, 20 Jun 2024 03:17:22 +0200
Subject: [PATCH] added a testcase

---
 server/Cargo.lock                   | 401 +++++++++++++++++++++++++---
 server/main-api/Cargo.toml          |   1 +
 server/main-api/src/calendar/mod.rs | 130 ++++++---
 3 files changed, 459 insertions(+), 73 deletions(-)

diff --git a/server/Cargo.lock b/server/Cargo.lock
index a21d4229b..400113281 100644
--- a/server/Cargo.lock
+++ b/server/Cargo.lock
@@ -109,7 +109,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e01ed3140b2f8d422c68afa1ed2e85d996ea619c988ac834d255db32138655cb"
 dependencies = [
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -223,7 +223,7 @@ dependencies = [
  "actix-router",
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -404,7 +404,7 @@ checksum = "0ae92a5119aa49cdbcf6b9f893fe4e1d98b04ccbf82ee0584ad948a44a734dea"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -437,7 +437,7 @@ checksum = "c6fa2087f2753a7da8cc1c0dbfcf89579dd57458e36769de5ac750b4671737ca"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -559,6 +559,56 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "bollard"
+version = "0.16.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0aed08d3adb6ebe0eff737115056652670ae290f177759aac19c30456135f94c"
+dependencies = [
+ "base64 0.22.1",
+ "bollard-stubs",
+ "bytes",
+ "futures-core",
+ "futures-util",
+ "hex",
+ "home",
+ "http 1.1.0",
+ "http-body-util",
+ "hyper 1.3.1",
+ "hyper-named-pipe",
+ "hyper-rustls 0.26.0",
+ "hyper-util",
+ "hyperlocal-next",
+ "log",
+ "pin-project-lite",
+ "rustls 0.22.4",
+ "rustls-native-certs",
+ "rustls-pemfile 2.1.2",
+ "rustls-pki-types",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "serde_repr",
+ "serde_urlencoded",
+ "thiserror",
+ "tokio",
+ "tokio-util",
+ "tower-service",
+ "url",
+ "winapi",
+]
+
+[[package]]
+name = "bollard-stubs"
+version = "1.44.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "709d9aa1c37abb89d40f19f5d0ad6f0d88cb1581264e571c9350fc5bb89cf1c5"
+dependencies = [
+ "serde",
+ "serde_repr",
+ "serde_with",
+]
+
 [[package]]
 name = "brotli"
 version = "6.0.0"
@@ -637,7 +687,7 @@ dependencies = [
  "cached_proc_macro_types",
  "directories",
  "futures",
- "hashbrown",
+ "hashbrown 0.14.5",
  "instant",
  "once_cell",
  "rmp-serde",
@@ -656,7 +706,7 @@ dependencies = [
  "darling",
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -871,7 +921,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -882,7 +932,7 @@ checksum = "a668eda54683121533a393014d8692171709ff57a7d61f187b6e782719f8933f"
 dependencies = [
  "darling_core",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -892,7 +942,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "978747c1d849a7d2ee5e8adc0159961c48fb7e5db2f06af6723b80123bb53856"
 dependencies = [
  "cfg-if",
- "hashbrown",
+ "hashbrown 0.14.5",
  "lock_api",
  "once_cell",
  "parking_lot_core 0.9.10",
@@ -965,6 +1015,15 @@ dependencies = [
  "dirs-sys",
 ]
 
+[[package]]
+name = "dirs"
+version = "5.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44c45a9d03d6676652bcb5e724c7e988de1acad23a711b5217ab9cbecbec2225"
+dependencies = [
+ "dirs-sys",
+]
+
 [[package]]
 name = "dirs-sys"
 version = "0.4.1"
@@ -977,6 +1036,17 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "docker_credential"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31951f49556e34d90ed28342e1df7e1cb7a229c4cab0aecc627b5d91edd41d07"
+dependencies = [
+ "base64 0.21.7",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "dotenvy"
 version = "0.15.7"
@@ -985,9 +1055,9 @@ checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"
 
 [[package]]
 name = "either"
-version = "1.11.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a47c1c47d2f5964e29c61246e81db715514cd532db6b5116a25ea3c03d6780a2"
+checksum = "3dca9240753cf90908d7e4aac30f630662b02aebaa1b58a3cadabdb23385b58b"
 dependencies = [
  "serde",
 ]
@@ -1010,7 +1080,7 @@ dependencies = [
  "heck 0.4.1",
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -1142,6 +1212,21 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -1228,7 +1313,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -1347,7 +1432,7 @@ dependencies = [
  "futures-sink",
  "futures-util",
  "http 0.2.12",
- "indexmap",
+ "indexmap 2.2.6",
  "slab",
  "tokio",
  "tokio-util",
@@ -1366,7 +1451,7 @@ dependencies = [
  "futures-sink",
  "futures-util",
  "http 1.1.0",
- "indexmap",
+ "indexmap 2.2.6",
  "slab",
  "tokio",
  "tokio-util",
@@ -1383,6 +1468,12 @@ dependencies = [
  "crunchy",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+
 [[package]]
 name = "hashbrown"
 version = "0.14.5"
@@ -1399,7 +1490,7 @@ version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8094feaf31ff591f651a2664fb9cfd92bba7a60ce3197265e9482ebe753c8f7"
 dependencies = [
- "hashbrown",
+ "hashbrown 0.14.5",
 ]
 
 [[package]]
@@ -1630,6 +1721,21 @@ dependencies = [
  "want",
 ]
 
+[[package]]
+name = "hyper-named-pipe"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73b7d8abf35697b81a825e386fc151e0d503e8cb5fcb93cc8669c376dfd6f278"
+dependencies = [
+ "hex",
+ "hyper 1.3.1",
+ "hyper-util",
+ "pin-project-lite",
+ "tokio",
+ "tower-service",
+ "winapi",
+]
+
 [[package]]
 name = "hyper-rustls"
 version = "0.24.2"
@@ -1682,6 +1788,22 @@ dependencies = [
  "webpki-roots 0.26.1",
 ]
 
+[[package]]
+name = "hyper-tls"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
+dependencies = [
+ "bytes",
+ "http-body-util",
+ "hyper 1.3.1",
+ "hyper-util",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+]
+
 [[package]]
 name = "hyper-util"
 version = "0.1.3"
@@ -1702,6 +1824,21 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "hyperlocal-next"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acf569d43fa9848e510358c07b80f4adf34084ddc28c6a4a651ee8474c070dcc"
+dependencies = [
+ "hex",
+ "http-body-util",
+ "hyper 1.3.1",
+ "hyper-util",
+ "pin-project-lite",
+ "tokio",
+ "tower-service",
+]
+
 [[package]]
 name = "iana-time-zone"
 version = "0.1.60"
@@ -1808,6 +1945,17 @@ version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44feda355f4159a7c757171a77de25daf6411e217b4cabd03bd6650690468126"
 
+[[package]]
+name = "indexmap"
+version = "1.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
+dependencies = [
+ "autocfg",
+ "hashbrown 0.12.3",
+ "serde",
+]
+
 [[package]]
 name = "indexmap"
 version = "2.2.6"
@@ -1815,7 +1963,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
 dependencies = [
  "equivalent",
- "hashbrown",
+ "hashbrown 0.14.5",
+ "serde",
 ]
 
 [[package]]
@@ -1835,7 +1984,7 @@ checksum = "c34819042dc3d3971c46c2190835914dfbe0c3c13f61449b2997f4e9722dfa60"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -2060,7 +2209,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "regex-syntax",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -2136,7 +2285,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "structmeta",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -2221,6 +2370,23 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8614eb2c83d59d1c8cc974dd3f920198647674a0a035e1af1fa58707e317466"
+dependencies = [
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "navigatum-main-api"
 version = "1.0.0"
@@ -2255,6 +2421,7 @@ dependencies = [
  "sqlx",
  "structured-logger",
  "tempfile",
+ "testcontainers-modules",
  "time",
  "tokio",
  "unicode-truncate",
@@ -2358,7 +2525,7 @@ checksum = "ed3955f1a9c7c0c15e092f9c887db08b1fc683305fdf6eb6684f22555355e202"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -2483,12 +2650,50 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "openssl"
+version = "0.10.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95a0481286a310808298130d22dd1fef0fa571e05a8f44ec801801e84b216b1f"
+dependencies = [
+ "bitflags 2.5.0",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "openssl-probe"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
+[[package]]
+name = "openssl-sys"
+version = "0.9.102"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c597637d56fbc83893a35eb0dd04b2b8e7a50c91e64e9493e398b5df4fb45fa2"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "option-ext"
 version = "0.2.0"
@@ -2552,6 +2757,31 @@ dependencies = [
  "windows-targets 0.52.5",
 ]
 
+[[package]]
+name = "parse-display"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "914a1c2265c98e2446911282c6ac86d8524f495792c38c5bd884f80499c7538a"
+dependencies = [
+ "parse-display-derive",
+ "regex",
+ "regex-syntax",
+]
+
+[[package]]
+name = "parse-display-derive"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ae7800a4c974efd12df917266338e79a7a74415173caf7e70aa0a0707345281"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "regex",
+ "regex-syntax",
+ "structmeta",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.15"
@@ -2600,7 +2830,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -2685,9 +2915,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.82"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ad3d49ab951a01fbaafe34f2ec74122942fe18a3f9814c3268f1bb72042131b"
+checksum = "22244ce15aa966053a896d1accb3a6e68469b97c7f33f284b99f0d576879fc23"
 dependencies = [
  "unicode-ident",
 ]
@@ -2708,7 +2938,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8021cf59c8ec9c432cfc2526ac6b8aa508ecaf29cd415f271b8406c1b851c3fd"
 dependencies = [
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -3075,11 +3305,13 @@ dependencies = [
  "http-body-util",
  "hyper 1.3.1",
  "hyper-rustls 0.27.2",
+ "hyper-tls",
  "hyper-util",
  "ipnet",
  "js-sys",
  "log",
  "mime",
+ "native-tls",
  "once_cell",
  "percent-encoding",
  "pin-project-lite",
@@ -3092,6 +3324,7 @@ dependencies = [
  "serde_urlencoded",
  "sync_wrapper 1.0.1",
  "tokio",
+ "tokio-native-tls",
  "tokio-rustls 0.26.0",
  "tokio-util",
  "tower-service",
@@ -3408,7 +3641,7 @@ checksum = "500cbc0ebeb6f46627f50f3f5811ccf6bf00643be300b4c3eabc0ef55dc5b5ba"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -3441,6 +3674,17 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_repr"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c64451ba24fc7a6a2d60fc75dd9c83c90903b19028d4eff35e88fc1e86564e9"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "serde_spanned"
 version = "0.6.5"
@@ -3462,13 +3706,43 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_with"
+version = "3.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ad483d2ab0149d5a5ebcd9972a3852711e0153d863bf5a5d0391d28883c4a20"
+dependencies = [
+ "base64 0.22.1",
+ "chrono",
+ "hex",
+ "indexmap 1.9.3",
+ "indexmap 2.2.6",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "serde_with_macros",
+ "time",
+]
+
+[[package]]
+name = "serde_with_macros"
+version = "3.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "65569b702f41443e8bc8bbb1c5779bd0450bbe723b56198980e80ec45780bce2"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "serde_yaml"
 version = "0.9.34+deprecated"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a8b1a1a2ebf674015cc02edccce75287f1a0130d394307b36743c2f5d504b47"
 dependencies = [
- "indexmap",
+ "indexmap 2.2.6",
  "itoa",
  "ryu",
  "serde",
@@ -3605,7 +3879,7 @@ dependencies = [
  "heck 0.4.1",
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -3698,7 +3972,7 @@ dependencies = [
  "futures-util",
  "hashlink",
  "hex",
- "indexmap",
+ "indexmap 2.2.6",
  "log",
  "memchr",
  "once_cell",
@@ -3896,7 +4170,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "structmeta-derive",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -3907,7 +4181,7 @@ checksum = "152a0b65a590ff6c3da95cabe2353ee04e6167c896b28e3b14478c2636c922fc"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -4020,9 +4294,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.61"
+version = "2.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c993ed8ccba56ae856363b1845da7266a7cb78e1d146c8a32d54b45a8b831fc9"
+checksum = "c42f3f41a2de00b01c0aaad383c5a45241efc8b2d1eda5661812fda5f3cdcff5"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4093,6 +4367,43 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "testcontainers"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2c9b71635ab25d4f789a86678d114a4f390467c8b93fd7feeaf7c443732a511"
+dependencies = [
+ "async-trait",
+ "bollard",
+ "bollard-stubs",
+ "bytes",
+ "dirs",
+ "docker_credential",
+ "either",
+ "futures",
+ "log",
+ "memchr",
+ "parse-display",
+ "reqwest 0.12.5",
+ "serde",
+ "serde_json",
+ "serde_with",
+ "thiserror",
+ "tokio",
+ "tokio-stream",
+ "tokio-util",
+ "url",
+]
+
+[[package]]
+name = "testcontainers-modules"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "322fe829905e734f38a73be07e200a25713fe4baa65074277af7b30dbc4ea487"
+dependencies = [
+ "testcontainers",
+]
+
 [[package]]
 name = "thiserror"
 version = "1.0.60"
@@ -4110,7 +4421,7 @@ checksum = "e2470041c06ec3ac1ab38d0356a6119054dedaea53e12fbefc0de730a1c08524"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -4197,7 +4508,17 @@ checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
+]
+
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
 ]
 
 [[package]]
@@ -4283,7 +4604,7 @@ version = "0.22.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3328d4f68a705b2a4498da1d580585d39a6510f98318a2cec3018a7ec61ddef"
 dependencies = [
- "indexmap",
+ "indexmap 2.2.6",
  "serde",
  "serde_spanned",
  "toml_datetime",
@@ -4356,7 +4677,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
@@ -4588,7 +4909,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
  "wasm-bindgen-shared",
 ]
 
@@ -4622,7 +4943,7 @@ checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -4935,7 +5256,7 @@ checksum = "15e934569e47891f7d9411f1a451d947a60e000ab3bd24fbb970f000387d1b3b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.61",
+ "syn 2.0.66",
 ]
 
 [[package]]
diff --git a/server/main-api/Cargo.toml b/server/main-api/Cargo.toml
index 375fda053..86233fa34 100644
--- a/server/main-api/Cargo.toml
+++ b/server/main-api/Cargo.toml
@@ -66,6 +66,7 @@ actix-governor = { version = "0.5.0", features = ["logger"] }
 tempfile = "3.10.1"
 base64 = "0.22.1"
 time = "0.3.36"
+testcontainers-modules = { version = "0.6.1", features = ["postgres"] }
 
 [dev-dependencies]
 pretty_assertions = "1.4.0"
diff --git a/server/main-api/src/calendar/mod.rs b/server/main-api/src/calendar/mod.rs
index 785800ac9..b25aa038f 100644
--- a/server/main-api/src/calendar/mod.rs
+++ b/server/main-api/src/calendar/mod.rs
@@ -2,7 +2,7 @@ use std::collections::HashMap;
 use actix_web::{get, web, HttpResponse};
 use chrono::{DateTime, Utc};
 use log::error;
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
 use sqlx::PgPool;
 
 use crate::calendar::models::{CalendarLocation, Event, LocationEvents};
@@ -11,8 +11,8 @@ mod connectum;
 mod models;
 pub mod refresh;
 
-#[derive(Deserialize, Debug)]
-pub struct QueryArguments {
+#[derive(Serialize, Deserialize, Clone, Debug)]
+pub struct Arguments {
     ids: Vec<String>,
     /// eg. 2039-01-19T03:14:07+1
     start_after: DateTime<Utc>,
@@ -20,69 +20,135 @@ pub struct QueryArguments {
     end_before: DateTime<Utc>,
 }
 
+impl Arguments {
+    fn validate_ids(&self) -> Result<Vec<String>, HttpResponse> {
+        let ids = self.ids.clone().into_iter().map(|s| s.replace(|c: char| c.is_whitespace() || c.is_control(), "")).collect::<Vec<String>>();
+        if ids.len() > 10 {
+            return Err(HttpResponse::BadRequest().body("Too many ids to query. We suspect that users don't need this. If you need this limit increased, please send us a message"));
+        };
+        if ids.is_empty() {
+            return Err(HttpResponse::BadRequest().body("No id requested"));
+        };
+        Ok(ids)
+    }
+}
+
 #[get("/api/calendar")]
 pub async fn calendar_handler(
-    web::Query(args): web::Query<QueryArguments>,
+    web::Json(args): web::Json<Arguments>,
     data: web::Data<crate::AppData>,
 ) -> HttpResponse {
-    let ids = args.ids.into_iter().map(|s| s.replace(|c: char| c.is_whitespace() || c.is_control(), "")).collect::<Vec<String>>();
-    if ids.len() > 10 {
-        return HttpResponse::BadRequest()
-            .body("Too many ids to query. We suspect that users don't need this. If you need this limit increased, please send us a message");
-    };
-    if ids.is_empty() {
-        return HttpResponse::BadRequest()
-            .body("No id requested");
+    let ids = match args.validate_ids() {
+        Ok(ids) => ids,
+        Err(e) => return e,
     };
     let locations = match get_locations(&data.db, &ids).await {
         Ok(l) => l,
         Err(e) => return e
     };
-    if let Err(e) = validate_locations(&ids,&locations){
+    if let Err(e) = validate_locations(&ids, &locations) {
         return e;
     }
     match get_from_db(&data.db, &locations, &args.start_after, &args.end_before).await {
         Ok(events) => HttpResponse::Ok().json(events),
         Err(e) => {
             error!("could not get entries from the db for {ids:?} because {e:?}");
-            HttpResponse::InternalServerError()
-                .body("could not get calendar entries, please try again later")
+            HttpResponse::InternalServerError().body("could not get calendar entries, please try again later")
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use actix_web::App;
+    use actix_web::test;
+    use actix_web::http::header::ContentType;
+    use sqlx::postgres::PgPoolOptions;
+    use crate::{AppData};
+    use testcontainers_modules::{postgres, testcontainers::runners::AsyncRunner};
+    use super::*;
+    use pretty_assertions::assert_eq;
+
+    #[actix_web::test]
+    async fn test_index_get() {
+        // setup postgres
+        let postgres_instance = postgres::Postgres::default().start().await.unwrap();
+        let connection_string = format!(
+            "postgres://postgres:postgres@{}:{}/postgres",
+            postgres_instance.get_host().await.unwrap(),
+            postgres_instance.get_host_port_ipv4(5432).await.unwrap()
+        );
+        let pool = PgPoolOptions::new().connect(&connection_string).await.unwrap();
+        // set up the http service/api/calendar
+        let app = test::init_service(
+            App::new().app_data(web::Data::new(AppData { db: pool.clone() })).service(calendar_handler)
+        ).await;
+        // -- send requests and assert response --
+        {
+            // missing required query parameters
+            let req = test::TestRequest::get().uri("/api/calendar").insert_header(ContentType::json()).to_request();
+            let (_, resp) = test::call_service(&app, req).await.into_parts();
+            run_testcase(resp, 400, "Json deserialize error: EOF while parsing a value at line 1 column 0").await;
+        }
+        {
+            // missing required query parameters
+            let args = Arguments {
+                end_before: Utc::now(),
+                start_after: Utc::now(),
+                ids: vec![],
+            };
+            let req = test::TestRequest::get().uri("/api/calendar").set_json(args).insert_header(ContentType::json()).to_request();
+            let (_, resp) = test::call_service(&app, req).await.into_parts();
+            run_testcase(resp, 400, "No id requested").await;
         }
+        {
+            // way too many parameters
+            let args = Arguments {
+                end_before: Utc::now(),
+                start_after: Utc::now(),
+                ids: (0..10_000).into_iter().map(|i| i.to_string()).collect(),
+            };
+            let req = test::TestRequest::get().uri("/api/calendar").set_json(args).insert_header(ContentType::json()).to_request();
+            let (_, resp) = test::call_service(&app, req).await.into_parts();
+            run_testcase(resp, 400, "Too many ids to query. We suspect that users don't need this. If you need this limit increased, please send us a message").await;
+        }
+    }
+
+    async fn run_testcase(resp: actix_web::HttpResponse, expected_status: u16, expected_body: &str) {
+        assert_eq!(resp.status().as_u16(), expected_status);
+        let body_box = resp.into_body();
+        let body_bytes = actix_web::body::to_bytes(body_box).await.unwrap();
+        let body_text = String::from_utf8(body_bytes.into_iter().collect()).unwrap();
+        assert_eq!(body_text, expected_body);
     }
 }
 
-fn validate_locations(ids: &[String],locations:&[CalendarLocation])->Result<(),HttpResponse>{
-    for id in ids{
-        if !locations.iter().any(|l|&l.key==id) {
-            return Err(HttpResponse::BadRequest()
-                .body("Requested id {id} does not exist"));
+
+fn validate_locations(ids: &[String], locations: &[CalendarLocation]) -> Result<(), HttpResponse> {
+    for id in ids {
+        if !locations.iter().any(|l| &l.key == id) {
+            return Err(HttpResponse::BadRequest().body("Requested id {id} does not exist"));
         }
     }
     assert_eq!(locations.len(), ids.len());
     for loc in locations {
         if loc.last_calendar_scrape_at.is_none() {
-            return Err(HttpResponse::ServiceUnavailable()
-                .body(format!("Room {key}/{url:?} calendar entry is currently in the process of being scraped, please try again later", key = loc.key, url = loc.calendar_url)));
+            return Err(HttpResponse::ServiceUnavailable().body(format!("Room {key}/{url:?} calendar entry is currently in the process of being scraped, please try again later", key = loc.key, url = loc.calendar_url)));
         };
     }
     for loc in locations {
         if loc.calendar_url.is_none() {
-            return Err(HttpResponse::NotFound()
-                .content_type("text/plain")
-                .body(format!("Room {key}/{url:?} does not have a calendar", key = loc.key, url = loc.calendar_url)));
+            return Err(HttpResponse::NotFound().content_type("text/plain").body(format!("Room {key}/{url:?} does not have a calendar", key = loc.key, url = loc.calendar_url)));
         };
     }
     Ok(())
 }
 
 async fn get_locations(pool: &PgPool, ids: &[String]) -> Result<Vec<CalendarLocation>, HttpResponse> {
-    match sqlx::query_as!(CalendarLocation, "SELECT key,name,last_calendar_scrape_at,calendar_url,type,type_common_name FROM de WHERE key = ANY($1::text[])", ids)
-        .fetch_all(pool)
-        .await {
+    match sqlx::query_as!(CalendarLocation, "SELECT key,name,last_calendar_scrape_at,calendar_url,type,type_common_name FROM de WHERE key = ANY($1::text[])", ids).fetch_all(pool).await {
         Err(e) => {
             error!("could not refetch due to {e:?}");
-            Err(HttpResponse::InternalServerError()
-                .body("could not get calendar entries, please try again later"))
+            Err(HttpResponse::InternalServerError().body("could not get calendar entries, please try again later"))
         }
         Ok(locations) => Ok(locations),
     }
@@ -99,9 +165,7 @@ async fn get_from_db(
         let events = sqlx::query_as!(Event, r#"SELECT id,room_code,start_at,end_at,stp_title_de,stp_title_en,stp_type,entry_type AS "entry_type!:crate::calendar::models::EventType",detailed_entry_type
             FROM calendar
             WHERE room_code = $1 AND start_at >= $2 AND end_at <= $3"#,
-            location.key, start_after, end_before)
-            .fetch_all(pool)
-            .await?;
+            location.key, start_after, end_before).fetch_all(pool).await?;
         located_events.insert(
             location.key.clone(),
             LocationEvents {